Comparison of hematological parameters between single and twin pregnancies in Dorper ewes during gestation, lambing, and postpartum / Comparação dos parâmetros hematológicos entre ovelhas Dorper de gestação simples e gemelar durante a prenhez, parto e pós-parto

ABSTRACT: The hematopoietic system changes during the pregnancy to carry fetal development and maternal needs. This study compared the hematological parameters between ewes with single and twin pregnancies during gestation, delivery, and postpartum. The experiment was conducted on 60 healthy pregnant Dorper ewes that were divided into two experimental groups: Group 1 (G1), with single pregnancies (n=30), and Group 2 (G2), with twin pregnancies (n=30). Blood samples were collected from all ewes at different times: immediately before fixed-time artificial insemination (AI); on day 30, 90, 120, 130, and 140 of pregnancy; immediately after delivery; and at 24h and 48h postpartum. Statistical analysis compared the two groups at different times (P<0.05). Mild, normocytic, and hypochromic anemia was detected in all ewes from AI time and throughout pregnancy from both groups, but did not prove to be of clinical relevance. In the peripartum stage (from the 140th day of pregnancy to 48h postpartum), the ewes with twin pregnancies (G2) exhibited higher erythrogram values and neutrophil:lymphocyte ratio than did ewes with single pregnancies (G1). This indicated a greater hematopoietic adaptation in the body during the development of two fetuses. Except for the eosinophil numbers, all leukogram parameters were influenced by pregnancy in a similar way in both groups, and was characterized mainly by leukocytosis with neutrophilia during peripartum due to the high presence of endogenous cortisol at delivery. Thus, these findings showed that pregnancy was a stressful physiological event that increased the leukocyte count with a slight alteration in the erythrogram of Dorper ewes.

RESUMO: O sistema hematopoiético sofre mudanças durante a gestação para atender o desenvolvimento fetal e as necessidades maternas. Este estudo comparou os parâmetros hematológicos entre ovelhas com gestação simples e gemelar durante a prenhez, parto e pós-parto. O estudo foi realizado em 60 ovelhas Dorper prenhes, saudáveis, divididas em dois grupos experimentais: Grupo 1 (G1) com gestação simples (n = 30); e Grupo 2 (G2) com gestação gemelar (n = 30). Amostras de sangue foram colhidos de todas as ovelhas em diferentes momentos: imediatamente antes da inseminação artificial em tempo fixo (IA); nos dias 30, 90, 120, 130 e 140 de gestação; imediatamente após o parto; e às 24h e 48h pós-parto. A análise estatística comparou os dois grupos nos diferentes momentos (P < 0,05). Anemia leve, normocítica e hipocrômica foi detectada desde a IA e ao longo da gestação, nas ovelhas de ambos os grupos, mas não houve relevância clínica. Na fase periparto (do 140º dia de gestação às 48h pós-parto), as ovelhas com gestação gemelar (G2) mostraram valores do eritrograma e proporção neutrófilos: linfócitos mais elevados do que as ovelhas com gestação simples (G1). Isso indicou maior adaptação hematopoiética da ovelha para o desenvolvimento de dois fetos. Com exceção do número de eosinófilos, todos os parâmetros do leucograma foram influenciados pela gestação de forma semelhante em ambos os grupos, e foi caracterizada principalmente por leucocitose com neutrofilia no periparto devido ao alto nível de cortisol endógeno no parto. Assim, os achados mostraram que a gestação foi um evento fisiológico estressante que aumentou a contagem de leucócitos com leve alteração no eritrograma de ovelhas Dorper.

Comparison of hematological parameters between single and twin pregnancies in Dorper ewes during gestation, lambing, and postpartum / Comparação dos parâmetros hematológicos entre ovelhas Dorper de gestação simples e gemelar durante a prenhez, parto e pós-parto

The hematopoietic system changes during the pregnancy to carry fetal development and maternal needs. This study compared the hematological parameters between ewes with single and twin pregnancies during gestation, delivery, and postpartum. The experiment was conducted on 60 healthy pregnant Dorper ewes that were divided into two experimental groups: Group 1 (G1), with single pregnancies (n=30), and Group 2 (G2), with twin pregnancies (n=30). Blood samples were collected from all ewes at different times: immediately before fixed-time artificial insemination (AI); on day 30, 90, 120, 130, and 140 of pregnancy; immediately after delivery; and at 24h and 48h postpartum. Statistical analysis compared the two groups at different times (P<0.05). Mild, normocytic, and hypochromic anemia was detected in all ewes from AI time and throughout pregnancy from both groups, but did not prove to be of clinical relevance. In the peripartum stage (from the 140th day of pregnancy to 48h postpartum), the ewes with twin pregnancies (G2) exhibited higher erythrogram values and neutrophil: lymphocyte ratio than did ewes with single pregnancies (G1). This indicated a greater hematopoietic adaptation in the body during the development of two fetuses. Except for the eosinophil numbers, all leukogram parameters were influenced by pregnancy in a similar way in both groups, and was characterized mainly by leukocytosis with neutrophilia during peripartum due to the high presence of endogenous cortisol at delivery. Thus, these findings showed that pregnancy was a stressful physiological event that increased the leukocyte count with a slight alteration in the erythrogram of Dorper ewes.

O sistema hematopoiético sofre mudanças durante a gestação para atender o desenvolvimento fetal e as necessidades maternas. Este estudo comparou os parâmetros hematológicos entre ovelhas com gestação simples e gemelar durante a prenhez, parto e pós-parto. O estudo foi realizado em 60 ovelhas Dorper prenhes, saudáveis, divididas em dois grupos experimentais: Grupo 1 (G1) com gestação simples (n = 30); e Grupo 2 (G2) com gestação gemelar (n = 30). Amostras de sangue foram colhidos de todas as ovelhas em diferentes momentos: imediatamente antes da inseminação artificial em tempo fixo (IA); nos dias 30, 90, 120, 130 e 140 de gestação; imediatamente após o parto; e às 24h e 48h pós-parto. A análise estatística comparou os dois grupos nos diferentes momentos (P < 0,05). Anemia leve, normocítica e hipocrômica foi detectada desde a IA e ao longo da gestação, nas ovelhas de ambos os grupos, mas não houve relevância clínica. Na fase periparto (do 140º dia de gestação às 48h pós-parto), as ovelhas com gestação gemelar (G2) mostraram valores do eritrograma e proporção neutrófilos: linfócitos mais elevados do que as ovelhas com gestação simples (G1). Isso indicou maior adaptação hematopoiética da ovelha para o desenvolvimento de dois fetos. Com exceção do número de eosinófilos, todos os parâmetros do leucograma foram influenciados pela gestação de forma semelhante em ambos os grupos, e foi caracterizada principalmente por leucocitose com neutrofilia no periparto devido ao alto nível de cortisol endógeno no parto. Assim, os achados mostraram que a gestação foi um evento fisiológico estressante que aumentou a contagem de leucócitos com leve alteração no eritrograma de ovelhas Dorper.

Comparison of hematological parameters between single and twin pregnancies in Dorper ewes during gestation, lambing, and postpartum / Comparação dos parâmetros hematológicos entre ovelhas Dorper de gestação simples e gemelar durante a prenhez, parto e pós-parto

The hematopoietic system changes during the pregnancy to carry fetal development and maternal needs. This study compared the hematological parameters between ewes with single and twin pregnancies during gestation, delivery, and postpartum. The experiment was conducted on 60 healthy pregnant Dorper ewes that were divided into two experimental groups: Group 1 (G1), with single pregnancies (n=30), and Group 2 (G2), with twin pregnancies (n=30). Blood samples were collected from all ewes at different times: immediately before fixed-time artificial insemination (AI); on day 30, 90, 120, 130, and 140 of pregnancy; immediately after delivery; and at 24h and 48h postpartum. Statistical analysis compared the two groups at different times (P<0.05). Mild, normocytic, and hypochromic anemia was detected in all ewes from AI time and throughout pregnancy from both groups, but did not prove to be of clinical relevance. In the peripartum stage (from the 140th day of pregnancy to 48h postpartum), the ewes with twin pregnancies (G2) exhibited higher erythrogram values and neutrophil: lymphocyte ratio than did ewes with single pregnancies (G1). This indicated a greater hematopoietic adaptation in the body during the development of two fetuses. Except for the eosinophil numbers, all leukogram parameters were influenced by pregnancy in a similar way in both groups, and was characterized mainly by leukocytosis with neutrophilia during peripartum due to the high presence of endogenous cortisol at delivery. Thus, these findings showed that pregnancy was a stressful physiological event that increased the leukocyte count with a slight alteration in the erythrogram of Dorper ewes.(AU)

O sistema hematopoiético sofre mudanças durante a gestação para atender o desenvolvimento fetal e as necessidades maternas. Este estudo comparou os parâmetros hematológicos entre ovelhas com gestação simples e gemelar durante a prenhez, parto e pós-parto. O estudo foi realizado em 60 ovelhas Dorper prenhes, saudáveis, divididas em dois grupos experimentais: Grupo 1 (G1) com gestação simples (n = 30); e Grupo 2 (G2) com gestação gemelar (n = 30). Amostras de sangue foram colhidos de todas as ovelhas em diferentes momentos: imediatamente antes da inseminação artificial em tempo fixo (IA); nos dias 30, 90, 120, 130 e 140 de gestação; imediatamente após o parto; e às 24h e 48h pós-parto. A análise estatística comparou os dois grupos nos diferentes momentos (P < 0,05). Anemia leve, normocítica e hipocrômica foi detectada desde a IA e ao longo da gestação, nas ovelhas de ambos os grupos, mas não houve relevância clínica. Na fase periparto (do 140º dia de gestação às 48h pós-parto), as ovelhas com gestação gemelar (G2) mostraram valores do eritrograma e proporção neutrófilos: linfócitos mais elevados do que as ovelhas com gestação simples (G1). Isso indicou maior adaptação hematopoiética da ovelha para o desenvolvimento de dois fetos. Com exceção do número de eosinófilos, todos os parâmetros do leucograma foram influenciados pela gestação de forma semelhante em ambos os grupos, e foi caracterizada principalmente por leucocitose com neutrofilia no periparto devido ao alto nível de cortisol endógeno no parto. Assim, os achados mostraram que a gestação foi um evento fisiológico estressante que aumentou a contagem de leucócitos com leve alteração no eritrograma de ovelhas Dorper.(AU)

Erythrogram and oxidative stress in confined cattle fed with Brachiaria sp hay and supplemented with antioxidants / Eritrograma e estresse oxidativo em bovinos confinados alimentados com feno de Brachiaria sp. e suplementados com antioxidantes

Brachiaria sp contains sporidesmin that can be oxidized by lipoperoxidation and cause oxidative stress. In the present study we evaluated the effects of different antioxidants on lipoperoxidation of erythrocytes from Nelore cattle fed with Brachiaria sp hay. The experimental design was entirely randomized, in which 40 whole male cattle were divided into five treatments (G1: control - no supplementation; G2: selenium and vitamin E supplementation; G3: zinc supplementation; G4: selenium supplementation and G5: vitamin E supplementation) and allocated in feedlot pens for 105 days. The samples heparinized and withethylenediaminetetraacetic acid (EDTA) were obtained every 28 days for hematological and oxidative stress evaluation (0, 28 56, 84 and 105 days). In the erythrogram total erythrocyte count, hemoglobin, and hematocrit (Ht) were measured. For the evaluation of oxidative stress, in order to analyze the characteristics of the erythrocyte membrane, the thiobarbituric acid reactive substances (TBARS), total glutathione (GSH-T), glutathione peroxidase (GSH-Px), catalase (CAT) and superoxide dismutase (SOD) were determined. The results showed that regardless of the treatment there was no oxidative stress during the experimental confinement period and that the joint association of selenium and vitamin E in the bovine diet provided a lower incidence of deleterious alterations on erythrocytes.

As Brachiaria sp contêm esporidesminas que podem ser oxidadas por lipoperoxidação e ocasionar estresse oxidativo. No presente estudo foram avaliados os efeitos de diferentes antioxidantes na lipoperoxidação dos eritrócitos de bovinos da raça Nelore, alimentados com feno de Brachiaria sp. O delineamento experimental foi inteiramente casualizado, em que 40 bovinos machos, inteiros, foram divididos, em cinco tratamentos (G1: controle - sem suplementação; G2: suplementação de selênio e vitamina E; G3: suplementação de zinco; G4: suplementação de selênio e G5: suplementação de vitamina E) e alocados em baias de confinamento, por 105 dias. As amostras de plasma heparinizado ou com ácido etilenodiamino tetra-acético (EDTA) foram obtidas a cada 28 dias para avaliação hematológica e de estresse oxidativo (0, 28 56, 84 e 105 dias). No eritrograma foi mensurado a contagem total de eritrócitos, a hemoglobina e o volume globular (VG). Para a avaliação do estresse oxidativo, com o objetivo de analisar as características da membrana do eritrócito foram determinadas as substâncias reativas ao ácido tiobarbitúrico (TBARS), glutationa total (GSH-T), glutationa peroxidase (GSH-Px), catalase (CAT) e superóxido dismutase (SOD). Os resultados demonstraram que independente do tratamento não houve estresse oxidativo durante o período do confinamento experimental e que a associação conjunta de selênio e vitamina E na dieta dos bovinos proporcionaram menor incidência de alterações deletérias sobre os eritrócitos.

Bilateral dysgerminoma in a senile bitch associated with nodular lymphoid hyperplasia in spleen and pyometra: a case report / Disgerminoma bilateral em cadela senil associado a hiperplasia nodular linfoide em baço e piometra: relato de caso

Ovarian neoplasms affect a low percentage of female dogs, and these tumors are classified according to their cellular origin and are considered rare. Dysgerminoma is a tumor derived from undifferentiated primordial ovarian germinal epithelium cells. In the male, this neoplasm is diagnosed as seminoma. Thus, dysgerminoma is not linked to the production of ovarian hormones such as estrogen and progesterone, which play a fundamental role in the establishment of pyometra. At Araujo Veterinary Hospital (HVA), a 15-year-old female Pinscher was admitted with mucopurulent vaginal discharge, abdominal enlargement, anorexia, polydipsia, and prostration clinical signs indicative of pyometra, radiographic and ultrasound examinations were requested, as well as a blood collection for hemogram and serum biochemistry. Ultrasound examination revealed uterine enlargement and hypoechoic content, in addition to bilateral ovarian cysts, measuring 7 cm in the right ovary and 3 cm in the left. The blood count revealed normal values in the erythrogram and the leukogram showed monocytosis and lymphopenia, in addition to macroplatelets. Biochemical examination revealed increased GGT values of 10 U/L. Ovariohysterectomy was performed and, in the trans-surgical period, nodules in the spleen were observed. So, the ovaries and a fragment of the lymphoid organ, were fixed and sent to the histopathology laboratory after surgical resection. Histopathology revealed ovarian dysgerminoma and lymphoid nodular hyperplasia. Ten days after the surgical procedure, the dog returned to the HVA for clinical evaluation and suture removal. However, three days after the return, the patient presented a convulsive condition evolving to death.

Neoplasias ovarianas acometem baixa porcentagem de cadelas, e estes tumores são classificados de acordo com a origem celular, sendo considerados raros. O disgerminoma é um tumor derivado de células do epitélio germinativo primordial ovariano, indiferenciado. No macho, essa neoplasia é diagnosticada como seminoma. Assim, o disgerminoma não está ligado a produção de hormônios ovarianos, como o estrógeno e a progesterona, que desempenham papel fundamental para o estabelecimento da piometra. No Hospital Veterinário Araújo (HVA), uma cachorra da raça Pinscher, com 15 anos, foi antendida apresentando, secreção vaginal mucopurulenta, aumento abdominal, anorexia, polidipsia e prostração sinais clínicos indicativos de piometra, solicitou-se exame de radiográfico e ultrassonografia, bem como a coleta de sangue para hemograma e bioquímico sérico. O exame ultrassonográfico revelou aumento uterino e conteúdo hipoecóico, além de cistos ovarianos bilaterais, com mensurações de 7 cm no ovário direito e 3 cm no esquerdo. O hemograma revelou valores normais no eritrograma e o leucograma apresentou monocitose e linfopenia, além de macroplaquetas. O exame bioquímico revelou valores de GGT aumentados, em 10 U/L. A ovariohisterectomia foi realizada e no trans cirúrgico observou-se nódulos no baço. Assim, os ovários e um fragmento do órgão linfoide, após a ressecção cirúrgica, foram fixados e encaminhadas para laboratório de histopatologia. A histopatologia revelou disgerminoma ovariano e hiperplasia nodular linfoide. Dez dias após o procedimento cirúrgico, a paciente retornou ao HVA para avaliação clínica e retirada da sutura. No entanto, três dias após o retorno, o animal apresentou um quadro convulsivo evoluindo ao óbito.

Nefrectomia em um cão infectado por Dioctophyma renale - Mato Grosso do Sul, Brasilîpt / Nephrectomy in a dog infected with Dioctophyma renale - Mato Grosso do Sul, Brazil

Background: Dioctophymosis is caused by Dioctophyma renale, a parasite known as the giant kidney worm, that canparasitize the kidneys of domestic and wild animals. There are also reports of its occurrence in humans, thus revealing itszoonotic potential. In most cases, parasitized animals are asymptomatic. This parasite can cause atrophy or destroy therenal parenchyma, although ectopic locations may occur. The diagnosis is made through ultrasonography, based on thepresence of eggs in the urine, visualization of the parasite, or during necropsy. Therefore, the aim of this work was to reportthe case of a young dog infected with D. renale and subjected to nephrectomy in the state of Mato Grosso do Sul, Brazil.Case: A 6-month-old bitch with a clinical suspicion of hydronephrosis in the right kidney was referred to the VeterinaryHospital of Anhanguera-Uniderp University in the city of Campo Grande, MS. A physical examination of the patientrevealed an alteration in the urinary system. An abdominal ultrasound, urinalysis, complete blood count (CBC) tests andbiochemical profile were ordered. The erythrogram indicated erythrocytosis resulting from dehydration and loss of bodyfluids, while enzyme levels (creatinine, urea, alanine aminotransferase [ALT] and albumin) were within normal limits.The abdominal ultrasound showed the presence of a cylindrical and rounded structure characteristic of a nematode and inthe right kidney, and loss of renal parenchyma typical of D. renale infection. A urinalysis then revealed the presence ofhelminth eggs, confirming the diagnosis. The owner was informed about the need for nephrectomy of the affected rightkidney, which showed destruction of the renal parenchyma. One adult female and one adult male parasite were removedfrom inside the kidney, measuring approximately 50 cm and 35 cm in length. The patient was successfully treated, keptin hospital for observation, and returned two weeks later for reassessment of her...

Nefrectomia em um cão infectado por Dioctophyma renale - Mato Grosso do Sul, Brasilîpt / Nephrectomy in a dog infected with Dioctophyma renale - Mato Grosso do Sul, Brazil

Background: Dioctophymosis is caused by Dioctophyma renale, a parasite known as the giant kidney worm, that canparasitize the kidneys of domestic and wild animals. There are also reports of its occurrence in humans, thus revealing itszoonotic potential. In most cases, parasitized animals are asymptomatic. This parasite can cause atrophy or destroy therenal parenchyma, although ectopic locations may occur. The diagnosis is made through ultrasonography, based on thepresence of eggs in the urine, visualization of the parasite, or during necropsy. Therefore, the aim of this work was to reportthe case of a young dog infected with D. renale and subjected to nephrectomy in the state of Mato Grosso do Sul, Brazil.Case: A 6-month-old bitch with a clinical suspicion of hydronephrosis in the right kidney was referred to the VeterinaryHospital of Anhanguera-Uniderp University in the city of Campo Grande, MS. A physical examination of the patientrevealed an alteration in the urinary system. An abdominal ultrasound, urinalysis, complete blood count (CBC) tests andbiochemical profile were ordered. The erythrogram indicated erythrocytosis resulting from dehydration and loss of bodyfluids, while enzyme levels (creatinine, urea, alanine aminotransferase [ALT] and albumin) were within normal limits.The abdominal ultrasound showed the presence of a cylindrical and rounded structure characteristic of a nematode and inthe right kidney, and loss of renal parenchyma typical of D. renale infection. A urinalysis then revealed the presence ofhelminth eggs, confirming the diagnosis. The owner was informed about the need for nephrectomy of the affected rightkidney, which showed destruction of the renal parenchyma. One adult female and one adult male parasite were removedfrom inside the kidney, measuring approximately 50 cm and 35 cm in length. The patient was successfully treated, keptin hospital for observation, and returned two weeks later for reassessment of her...(AU)

Haematological changes in rabbits (Oryctolagus cuniculus f. domesticus) in the course of pregnancy

Abstract The analysis of haematological parameters is an important element of the assessment of the physiological condition of animals. Haematological parameters may change both under the influence of various external factors, and in the course of normal pregnancy, which has been found in various species of mammals, including rabbits. Our study showed statistically significant (p<0.05) changes in basic haematological parameters: RBC (decrease; 5.87±0.48 at day 15 vs. 5.42±0.32 T/L at day 26), MCH (increase; 1.35±0.04 before matching vs. 1.41±0.03 fmol at day 26), RDW (decrease; 15.77±1.80 at day 15 vs. 14.27±1.57% at day 26) MPV (increase; 5.17±0.31 at day 15 vs. 5.92±0.70 fL at day 26), WBC (decrease; 8.60±2.57 at day 15 vs. 4.94±0.88 G/L at day 26) and PLT (decrease; 398.17±91.67 before matching vs. 271.67±61.72 G/L at day 26) in Termond White rabbits and RBC (decrease; 6.18±0.68 before matching vs. 5.68±0.54 T/L at day 26), Hb (decrease; 8.00±0.90 before matching vs. 7.32±0.71 mmol/L at day 26), MCH (decrease; 1.32±0.05 at day 15 vs. 1.29±0.04 fmol at day 26) and WBC (decrease; 9.62±1.81 before matching vs. 5.85±2.23 G/L at day 26 as well as 9.58±2.35 at day 15 vs. 5.85±2.23 G/L at day 26) in Popielno White rabbits. Moreover, in the Popielno White rabbits we recorded a significant (p<0.05) decrease in the percentage of irregular erythrocytes at the end of pregnancy (11.00±10.02 at day 15 vs. 3.00±4.94 at day 26). The changes appear to be physiological but should be considered in studies using rabbits as model organisms.

Hematological parameters of three species of the peacock bass (Cichla spp. ) from Balbina lake, Presidente Figueiredo, Amazonas, Brazil / Parâmetros hematológicos de três espécies de tucunarés (Cichla spp. ) do lago de Balbina, Presidente Figueiredo, Amazonas, Brasil

The objective of this study was to characterize and compare the hematological variables (erythrogram, thrombogram, leukogram and plasma metabolites) of three cichlid species: Cichla monoculus, Cichla temensis and Cichla vazzoleri. A total of 45 specimens were captured in Balbina lake, Presidente Figueiredo, Amazonas, Brazil, with the aid of a rod and reel or hand line, with natural or artificial bait: 15 C. monoculus, 15 C. temensis and 15 C. vazzoleri. Their blood was removed by means of caudal puncture of the dorsal aorta, and hematological data were determined in accordance with methodology previously described in the literature. The erythrogram showed similarities between the species, while the thrombogram showed differences between C. vazzoleri and the other species studied (C. monoculus and C. temensis). The total leukocyte counts for C. temensis and C. vazzoleri were higher than those of C. monoculus. The predominant leukocyte in C. temensis and C. vazzoleri was lymphocytes, whereas it was monocytes in C. monoculus. The plasma metabolites showed differences between the three cichlid species, regarding their glucose, cholesterol, urea and potassium levels. It is concluded that these three species present hematological differentiation, thus indicating that they have differentiated blood-cell immune responses and plasma metabolite physiology.(AU)

O presente trabalho teve por objetivo caracterizar e comparar as variáveis hematológicas (eritrograma, trombograma, leucograma e metabólitos plasmáticos) de três espécies de tucunarés Cichla monoculus, Cichla temensis e Cichla vazzoleri. Um total de 45 animais foi capturado no lago de Balbina, Presidente Figueiredo, Amazonas, com auxílio de vara e carretilha, linha de mão com isca natural e artificial, sendo 15 C. monoculos, 15 C. temensis e 15 C. vazzoleri. O sangue foi retirado por punção caudal da aorta dorsal e os dados hematológicos foram determinados de acordo com metodologia previamente descrita na literatura. No eritrograma foram observadas similaridades entre as espécies, o trombograma demonstrou diferenças entre o C. vazzoleri e as demais espécies estudadas (C. monoculus e C. temensis), a contagem total de leucócitos demonstrou que em C. temensis e C. vazzoleri os valores são superiores ao C. monoculus. Foi demonstrado que os linfócitos foram às células predominantes em C. temensis e C. vazzoleri, diferentemente do C. monoculos que apresentou como leucócito predominante os monócitos. Nos metabólitos plasmáticos, foi possível observar diferenças entre as três espécies de tucunarés nos níveis de glicose, colesterol, uréia e potássio. Conclui-se que as três espécies de tucunarés apresentam diferenciação hematológica, indicando que as mesmas possuem respostas diferenciadas, na resposta imunológica de suas células do sangue e na fisiologia dos metabólitos plasmáticos.(AU)

Eosinophilic folliculitis in a dog

Background: Canine eosinophilic folliculitis is a dermatological disease of acute onset with development of erosive to ulcerative papular lesions, especially on the nasal bridge, that may cause severe skin abnormalities leading to discomfort and pain to the patient. The aim of this report was to characterize a case of a canine eosinophilic folliculitis with papular, ulcerative and crusting dermatitis on the nasal bridge, papules on eyelid and pinna, with confirmed diagnosis based on aspiration cytology, history and response to immunosuppressive therapy with glucocorticoid. Case: An 1-year-old intact Daschund was attended showing an acute onset (over 4 h) of generalized urticarial reaction and nonpruriginous lesion at the muzzle with mild serosanguineous exudate, which persisted for 96 h when the dog was evaluated. It was observed a papular and ulcerative dermatitis with serosanguineous exudate and hematic crusts at nasal bridge, papules measuring 2 mm in diameter in the medial and lateral canthus of the left eyelid, ulcerative papule with hematic crust in the border of left ear pinna, multifocal papules on the skin, dyskeratosis and generalized hair loss. The patient was anesthetized for blood sampling (CBC and serum biochemistry), lesions fine-needle aspiration, scraping and imprint for cytological examination, bacterial culture and nasal turbinates radiography. Fragments for histopathological evaluation were also collected. Erythrogram and platelet evaluation were unremarkable. Leukogram revealed leukocytosis (neutrophilia, lymphocytosis, monocytosis and eosinophilia). Serum biochemistry revealed hyperalbuminemia and discrete hyperproteinemia; values of alanine aminotransferase, creatinine and globulins were within normal range. In cytological examination, intense cellularity was observed with predominance of eosinophils (60%), neutrophils (35%), macrophages performing cytophagocytosis (5%) and degenerated cells. There was no bacterial growth within 48 h after incubation of nasal bridge lesion swab. There were no abnormalities identified at radiographic evaluation of nasal turbinates. As the patient was already with antibiotic therapy and steroidal anti-inflammatory, it was opted to maintain it, since interruption between the day of examination and laboratory results could cause more prejudice than benefit, corticosteroid dose, however, was readjusted (prednisone 2 mg/kg/per os/every 24h). After 1 week of treatment the owner reported significant improvement of clinical signs without any further complaint. Discussion: Typically, type I hypersensitivity reactions such as insect bites do not exceed clinical signs of erythema, local edema and pruritus, with spontaneous remission of clinical signs within few hours after exposure to the antigen. Eosinophilic folliculitis, however, may cause more severe clinical alterations, such as pain, apathy and hyporexia. Nasal bridge is the predominant site described to be affected in cases of eosinophilic folliculitis, being auricular pinna, thorax and limbs considered atypical presentations which can delay proper diagnosis, since in endemic regions for diseases such as visceral leishmaniasis, infectious etiology may be listed first. Differential diagnosis also includes superficial pyoderma, juvenile cellulitis, pemphigus foliaceus and pharmacodermia. The case described in this report emphasize the importance of an accurate diagnosis as well as an early and adequate treatment in order to promote satisfactory response. Also, highlights inadequate use of antimicrobials as a direct consequence of lack of laboratorial investigation.

Haematological changes in rabbits (Oryctolagus cuniculus f. domesticus) in the course of pregnancy

The analysis of haematological parameters is an important element of the assessment of the physiological condition of animals. Haematological parameters may change both under the influence of various external factors, and in the course of normal pregnancy, which has been found in various species of mammals, including rabbits. Our study showed statistically significant (p<0.05) changes in basic haematological parameters: RBC (decrease; 5.87±0.48 at day 15 vs. 5.42±0.32 T/L at day 26), MCH (increase; 1.35±0.04 before matching vs. 1.41±0.03 fmol at day 26), RDW (decrease; 15.77±1.80 at day 15 vs. 14.27±1.57% at day 26) MPV (increase; 5.17±0.31 at day 15 vs. 5.92±0.70 fL at day 26), WBC (decrease; 8.60±2.57 at day 15 vs. 4.94±0.88 G/L at day 26) and PLT (decrease; 398.17±91.67 before matching vs. 271.67±61.72 G/L at day 26) in Termond White rabbits and RBC (decrease; 6.18±0.68 before matching vs. 5.68±0.54 T/L at day 26), Hb (decrease; 8.00±0.90 before matching vs. 7.32±0.71 mmol/L at day 26), MCH (decrease; 1.32±0.05 at day 15 vs. 1.29±0.04 fmol at day 26) and WBC (decrease; 9.62±1.81 before matching vs. 5.85±2.23 G/L at day 26 as well as 9.58±2.35 at day 15 vs. 5.85±2.23 G/L at day 26) in Popielno White rabbits. Moreover, in the Popielno White rabbits we recorded a significant (p<0.05) decrease in the percentage of irregular erythrocytes at the end of pregnancy (11.00±10.02 at day 15 vs. 3.00±4.94 at day 26). The changes appear to be physiological but should be considered in studies using rabbits as model organisms.(AU)

Cardiorespiratory and haematologicalparameters of healthy french bulldogs / Parâmetros cardiorrespiratórios e hematológicos de cães sadios da raça buldogue francês

Brachycephalic dogs have a normal lower jaw and a receded upper jaw, and these dogs are predisposed to nostril stenosis, elongated palate, tracheal hypoplasia and hyperthermia due to heat stress. Giventhese characteristics, these dogs are more predisposed to respiratory and cardiovascular disorders. The popularity of brachycephalic dogsthathave a greatertendency for cardiorespiratory disorders, such as French bulldogs,has increased recently; however, studies on the cardiorespiratoryand haematological parameters in this breedare lacking. Thus, the present study sought to evaluatethe cardiorespiratory and haematological parameters of healthy French bulldogs to standardize normal values forthisbreed. Thirty-six French bulldogs wereused without predilection for age or sex, and the following parameters were evaluated: temperature (T), heart rate (HR), respiratory rate (RR), erythrogram, leukogram, total plasma protein, plasmatic fibrinogen, blood platelet count, urea, creatinine, alkaline phosphatase (AP) and alanine aminotransferase (ALT). The mean and standard deviation wereas follows: T°C (38.3±0.4), HR (111.1±27.0) beats per minute, RR (54.8±32.5) breaths per minute, erythrocyte count (7.3±1.2x106), haemoglobin (16.9±2.8 g/dL), haematocrit (48.9±7.7%), MCV (67.6±2.4fL), MCH (23.3±0.7 pg), MCHC (34.6±0.8%), RDW-CV (9.3±0.9; 9.2-12.0%), total leukocytes (11009.7±2907.3/mm3), band neutrophils (250.0±260.4/mm3), segmented neutrophils (7094.4±2307.3/mm3), eosinophils (589.7±561.3/mm3), lymphocytes (2020.8±1457.5/mm3), monocytes (987.6±528.4/mm3), total plasma protein (6.9±0.5 g/dL), plasmatic fibrinogen (274.1±96.5 mg/dL), blood platelet count (366.4±88.5/mm3), urea (35.2±12.6 mg/dL), creatinine (0.8±0.2/mg/dL), AP (49.1±25.8U/L),ALT (36.2±12.3U/L). The haematological parameters and heart rate were within the normal values for the species, but the respiratory rate values (54.8±32.5 breaths per minute)were greater than the normal averageof10 to 30 breaths per minute. We conclude thatthehaematological parameters and heart rateof healthy French bulldogs arewithin the normal limit for dogs; however, the respiratory rate is above referencevalues, reinforcing the notion that dogs of this breed, although healthy,exhibitan increasedrisk of respiratory disorders.

Cães braquicefálicosapresentam maxilar inferior normal, maxilar superior recuado, além disso, são predispostos à estenose de narina, palato alongado, hipoplasia traqueal e hipertermia por estresse por calor. Devido à essas características são mais predispostos à distúrbios respiratórios e cardiovasculares. A popularidade de cães braquicefálicos aumentou muito recentemente, como por exemplo, o Buldogue Francês, que possui uma maior tendência para transtornos cardiorrespiratórios, porém, não há estudos dos parâmetros cardiorrespiratórios e hematológicos nessa raça. Desta maneira, o presente estudo tem como objetivo avaliar os parâmetros cardiorrespiratórios e hematológicos de cães sadios da raça Buldogue Francês para padronização dos valores normais e servir de subsídios para a rotina clínica, cirúrgica, laboratorial e de futuros estudos nessa raça. Foram utilizados 36 cães da raça Buldogue Francês, sem predileção de idade, raça ou sexo e avaliados os seguintes parâmetros: temperatura (T), frequência cardíaca (FC), frequência respiratória (FR), eritrograma,leucograma, proteínas plasmáticas totais (PPT), fibrinogênio plasmático, contagem de plaquetas, ureia, creatinina, fosfatase alcalina (ALP) e alanino amino transferase (ALT). A média e desvio padrão foram: T°C (38,3±0,4), FC (111,1±27,0) batimentos/min, FR (54,8±32,5) movimentos/min, contagem de eritrócitos (7,3±1,2x106), Hb(16,9±2,8g/dL), VG(48,9±7,7%), VCM (67,6±2,4fL), HCM (23,3±0,7pg), CHCM (34,6±0,8%), RDW-CV (9,3±0,9; 9,2-12,0%), leucócitos totais (11009,7±2907,3/mm3), bastonetes (250,0±260,4/mm3), neutrófilos (7094,4±2307,3/mm3), eosinófilos (589,7±561,3/mm3), linfócitos (2020,8±1457,5/mm3), monócitos (987,6±528,4/mm3), PPT (6,9±0,5g/dL), fibrinogênio plasmático (274,1±96,5mg/dL), contagem de plaquetas (366,4±88,5/mm3), ureia (35,2±12,6mg/dL), creatinina (0,8±0,2/mg/dL), ALP (49,1±25,8U/L) e ALT (36,2±12,3U/L). Os parâmetros hematológicos e de frequência cardíaca ficaram dentro da normalidade, porém os valores da frequência respiratória (54,8±32,5) movimentos/min ficaram acima da média normal que é de 10 a 30 movimentos/min. Conclui-se que cães saudáveis da raça Buldogue Francês possuem parâmetros hematológicos e de frequência cardíaca dentro da normalidade para cães, porém, a frequência respiratória acima dos valores de referência, reforçando que cães dessa raça, mesmo saudáveis, possuem aumento do risco de transtornos respiratórios.

Clinical, hematological, blood gasometric and electrolytic changes in dogs receiving whole blood transfusions

Blood transfusion is a tool capable of saving lives. Patients undergoing blood transfusion usually present several alterations in the acid-base and electrolyte balance, aggravating the condition of critically ill patients. Some studies have demonstrated haematological alterations in certain species that received whole blood transfusions, however, few studies have evaluated acid base and electrolyte changes in dogs undergoing whole blood haemotherapy. The aim of this study was to analyze clinical, hematological, blood gas and electrolyte changes in anemic dogs after whole blood transfusion. Twenty nine dogs transfused due to anemia were enrolled in the study. Donors blood was collected in a transfusion bag containing citrate phosphate adenine dextrose and stored up to 24 h. Blood collections and evaluations were made before and 24 h after the transfusion. Data distribution normality was tested by the Shapiro Wilk Test. The means of the variables were compared by paired t-test. It was observed an increase in diastolic blood pressure and a reduction in heart rate (P < 0.05). There was a not significant increase in systolic blood pressure, temperature, and a reduction in respiratory rate per minute. Erythrocyte, haemoglobin and haematocrit averages were significantly increased after blood transfusion (P < 0.05). It was observed a reduction in the mean values of pH (P < 0.05), potassium (P > 0.05) and ionized calcium (P > 0.05) and an increase in the mean partial pressure of carbon dioxide (pCO2 ) (P < 0.001), bicarbonate (P > 0.05) and sodium (P < 0.05). The probable cause of anemia was monocytic ehrlichiosis (14/29), visceral leishmaniasis (1/29), babesiosis (1/29), co-infection of Ehrlichia canis and Leishmania infantum (2/29), co-infection of E. canis and Babesia vogeli (1/29). It was not possible to determine the etiology of the anemia in ten dogs. Heart rate significantly reduced after transfusion, probably because of the increase in hematocrit, hemoglobin and erythrocyte values. It may be justified by the displacement of extravascular fluid to the intravascular space. Mean values of systolic blood pressure were slightly elevated before transfusion and remained elevated afterwards, while diastolic and mean arterial pressure increased significantly after transfusion. These changes may be due to the morbid condition and may be influenced by many other factors. Haematocrit, haemoglobin and erythrocyte values increased significantly after transfusion, according to what was observed in other studies. The significant reduction in pH and increase in pCO2 reflects the compensatory mechanism for metabolic acidosis to increase ventilation, leading to pCO2 reduction and changes in pH. The reduction in pH due to the contact of the collected blood with conservative solutions is one of the main changes thar occurs during blood storage. It was described significantly lower pH in dogs' whole blood samples stored for more than 24 h in vacutainer plastic containing CPDA-1. We may assume there was no intense pH reduction in the present study because the bags were stored for up to 24 h. Although not statistically significant, the increase of pO2 mean reflects the improvement of tissue oxygen perfusion. It was observed a significant increase in sodium ions. The mean sodium ion concentration before transfusion was very close to the maximum reference value. Hyperkalaemia was not observed, nor was there significant reduction of potassium ions after transfusion. Several studies report hyperkalaemia and transfusion-associated cardiac arrests in humans, associated with infusion of large volumes of blood. Whole blood transfusion increased erythrogram values and did not negatively affect the electrolyte or acid-base status, representing a safe and useful tool in the intensive care of small animals.(AU)

Cardiorespiratory and haematologicalparameters of healthy french bulldogs / Parâmetros cardiorrespiratórios e hematológicos de cães sadios da raça buldogue francês

Brachycephalic dogs have a normal lower jaw and a receded upper jaw, and these dogs are predisposed to nostril stenosis, elongated palate, tracheal hypoplasia and hyperthermia due to heat stress. Giventhese characteristics, these dogs are more predisposed to respiratory and cardiovascular disorders. The popularity of brachycephalic dogsthathave a greatertendency for cardiorespiratory disorders, such as French bulldogs,has increased recently; however, studies on the cardiorespiratoryand haematological parameters in this breedare lacking. Thus, the present study sought to evaluatethe cardiorespiratory and haematological parameters of healthy French bulldogs to standardize normal values forthisbreed. Thirty-six French bulldogs wereused without predilection for age or sex, and the following parameters were evaluated: temperature (T), heart rate (HR), respiratory rate (RR), erythrogram, leukogram, total plasma protein, plasmatic fibrinogen, blood platelet count, urea, creatinine, alkaline phosphatase (AP) and alanine aminotransferase (ALT). The mean and standard deviation wereas follows: T°C (38.3±0.4), HR (111.1±27.0) beats per minute, RR (54.8±32.5) breaths per minute, erythrocyte count (7.3±1.2x106), haemoglobin (16.9±2.8 g/dL), haematocrit (48.9±7.7%), MCV (67.6±2.4fL), MCH (23.3±0.7 pg), MCHC (34.6±0.8%), RDW-CV (9.3±0.9; 9.2-12.0%), total leukocytes (11009.7±2907.3/mm3), band neutrophils (250.0±260.4/mm3), segmented neutrophils (7094.4±2307.3/mm3), eosinophils (589.7±561.3/mm3), lymphocytes (2020.8±1457.5/mm3), monocytes (987.6±528.4/mm3), total plasma protein (6.9±0.5 g/dL), plasmatic fibrinogen (274.1±96.5 mg/dL), blood platelet count (366.4±88.5/mm3), urea (35.2±12.6 mg/dL), creatinine (0.8±0.2/mg/dL), AP (49.1±25.8U/L),ALT (36.2±12.3U/L). The haematological parameters and heart rate were within the normal values for the species, but the respiratory rate values (54.8±32.5 breaths per minute)were greater than the normal averageof10 to 30 breaths per minute. We conclude thatthehaematological parameters and heart rateof healthy French bulldogs arewithin the normal limit for dogs; however, the respiratory rate is above referencevalues, reinforcing the notion that dogs of this breed, although healthy,exhibitan increasedrisk of respiratory disorders.(AU)

Cães braquicefálicosapresentam maxilar inferior normal, maxilar superior recuado, além disso, são predispostos à estenose de narina, palato alongado, hipoplasia traqueal e hipertermia por estresse por calor. Devido à essas características são mais predispostos à distúrbios respiratórios e cardiovasculares. A popularidade de cães braquicefálicos aumentou muito recentemente, como por exemplo, o Buldogue Francês, que possui uma maior tendência para transtornos cardiorrespiratórios, porém, não há estudos dos parâmetros cardiorrespiratórios e hematológicos nessa raça. Desta maneira, o presente estudo tem como objetivo avaliar os parâmetros cardiorrespiratórios e hematológicos de cães sadios da raça Buldogue Francês para padronização dos valores normais e servir de subsídios para a rotina clínica, cirúrgica, laboratorial e de futuros estudos nessa raça. Foram utilizados 36 cães da raça Buldogue Francês, sem predileção de idade, raça ou sexo e avaliados os seguintes parâmetros: temperatura (T), frequência cardíaca (FC), frequência respiratória (FR), eritrograma,leucograma, proteínas plasmáticas totais (PPT), fibrinogênio plasmático, contagem de plaquetas, ureia, creatinina, fosfatase alcalina (ALP) e alanino amino transferase (ALT). A média e desvio padrão foram: T°C (38,3±0,4), FC (111,1±27,0) batimentos/min, FR (54,8±32,5) movimentos/min, contagem de eritrócitos (7,3±1,2x106), Hb(16,9±2,8g/dL), VG(48,9±7,7%), VCM (67,6±2,4fL), HCM (23,3±0,7pg), CHCM (34,6±0,8%), RDW-CV (9,3±0,9; 9,2-12,0%), leucócitos totais (11009,7±2907,3/mm3), bastonetes (250,0±260,4/mm3), neutrófilos (7094,4±2307,3/mm3), eosinófilos (589,7±561,3/mm3), linfócitos (2020,8±1457,5/mm3), monócitos (987,6±528,4/mm3), PPT (6,9±0,5g/dL), fibrinogênio plasmático (274,1±96,5mg/dL), contagem de plaquetas (366,4±88,5/mm3), ureia (35,2±12,6mg/dL), creatinina (0,8±0,2/mg/dL), ALP (49,1±25,8U/L) e ALT (36,2±12,3U/L). Os parâmetros hematológicos e de frequência cardíaca ficaram dentro da normalidade, porém os valores da frequência respiratória (54,8±32,5) movimentos/min ficaram acima da média normal que é de 10 a 30 movimentos/min. Conclui-se que cães saudáveis da raça Buldogue Francês possuem parâmetros hematológicos e de frequência cardíaca dentro da normalidade para cães, porém, a frequência respiratória acima dos valores de referência, reforçando que cães dessa raça, mesmo saudáveis, possuem aumento do risco de transtornos respiratórios.(AU)

Prednisolone associated with doxycycline on the hematological parameters and serum proteinogram of dogs with ehrlichiosis / Efeitos da influência da prednisolona associada à doxiciclina nos parâmetros hematológicos e proteinograma sérico de cães com erliquiose

The objective of the present study was to assess the treatment of dogs with ehrlichiosis (tropical canine pancytopenia (TCP)) with doxycycline hydrochloride associated or not with prednisolone on the hematological profile and serum proteins. Ten dogs with TCP were selected in the Small Animal Medical Clinic Veterinary Hospital, Federal University of Campina Grande-UFCG-PB, Brazil. The diagnosis was obtained by clinical examination, hemogram and immunochromatographic test (with anti Ehrlichia canis antibodies). Samples were distributed randomly in two experimental groups of five animals each (n = 5), named GD and GDP. The GD group was treated with doxycycline (5 mg/kg, VO, BID for 28 days) and the GDP group was treated with doxycycline at the same dose and duration and prednisolone (2 mg/kg, VO, BID, for five days). Four blood collections were made during the treatment period: a base collection (M0), one at 10 days (M10), a second at 21 days (M21) and another at the end of the treatment (M28). These samples were used for the tests erythrogram, leucogram, plateletgram and proteinogram (dose of total proteins, pre-albumin, albumin, albumin, -1 globulin, -2 globulin, ß-globulin, -globulin and C- reactive protein) in the Clinical Pathology Laboratory, Veterinary Hospital-UFCG-PB. Results, that presented normal distribution, was submitted to the Tukey test (P 0.05). Comparison of treatments GD and GDP showed that both promoted discreet and similar response in the hematological parameters at different times. Results obtained allowed the conclusion that both therapeutic protocols resulted in clinical, hematological parameter and proteinogram improvement, but the use of prednisolone at the dose administered during the first five days of treatment did not show more beneficial effects than isolated administration of doxycycline.(AU)

Objetivou-se com este estudo avaliar os efeitos do tratamento de cães com erliquiose monocítica canina (EMC) com cloridrato de doxiciclina associada ou não à prednisolona sobre o perfil hematológico e de proteínas séricas. Foram selecionados, na Clínica Médica de Pequenos Animais do Hospital Veterinário da Universidade Federal de Campina Grande (UFCG), 10 cães com EMC. O diagnóstico foi obtido através de exame clínico, hemograma e teste de imunoensaio imunocromatográfico (com anticorpos anti Ehrlichia canis). As amostras foram distribuídas aleatoriamente em dois grupos experimentais, com cinco animais cada (n=5), denominados GD e GDP. O grupo GD foi tratado com doxiciclina (5 mg/kg, VO, BID durante 28 dias) e o grupo GDP, tratado com doxiciclina na mesma dose e duração e prednisolona (2 mg/kg, VO, BID, durante 5 dias). Durante o período de tratamento, foram realizadas quatro coletas de sangue; uma coleta basal (M0), uma com 10 dias (M10), uma aos 21 dias (M21) e outra ao final do tratamento (M28). Dessas amostras foram realizados eritrograma, leucograma, plaquetograma e proteinograma (dosagem de proteínas totais, pré-albumina, albumina, -1 globulina, -2 globulina, ß-globulina, -globulina e proteína C-reativa) no Laboratório de Patologia Clínica do Hospital Veterinário da UFCG. Os resultados que apresentaram distribuição normal foram submetidos ao teste de Tukey (P 0,05). Ao comparar os tratamentos GD e GDP, observou-se que os dois promoveram resposta discreta e semelhante dos parâmetros hematológicos nos diferentes momentos. Os resultados obtidos permitem concluir que ambos os protocolos terapêuticos resultaram em melhora clínica e dos parâmetros hematológicos e do proteinograma. Porém, o uso da prednisolona na dose empregada durante os primeiros cinco dias de tratamento não demonstrou efeitos mais benéficos do que a administração isolada da doxiciclina.(AU)

Hematological parameters of three species of the peacock bass (Cichla spp.) from Balbina lake, Presidente Figueiredo, Amazonas, Brazil

Abstract The objective of this study was to characterize and compare the hematological variables (erythrogram, thrombogram, leukogram and plasma metabolites) of three cichlid species: Cichla monoculus, Cichla temensis and Cichla vazzoleri. A total of 45 specimens were captured in Balbina lake, Presidente Figueiredo, Amazonas, Brazil, with the aid of a rod and reel or hand line, with natural or artificial bait: 15 C. monoculus, 15 C. temensis and 15 C. vazzoleri. Their blood was removed by means of caudal puncture of the dorsal aorta, and hematological data were determined in accordance with methodology previously described in the literature. The erythrogram showed similarities between the species, while the thrombogram showed differences between C. vazzoleri and the other species studied (C. monoculus and C. temensis). The total leukocyte counts for C. temensis and C. vazzoleri were higher than those of C. monoculus. The predominant leukocyte in C. temensis and C. vazzoleri was lymphocytes, whereas it was monocytes in C. monoculus. The plasma metabolites showed differences between the three cichlid species, regarding their glucose, cholesterol, urea and potassium levels. It is concluded that these three species present hematological differentiation, thus indicating that they have differentiated blood-cell immune responses and plasma metabolite physiology.

Resumo O presente trabalho teve por objetivo caracterizar e comparar as variáveis hematológicas (eritrograma, trombograma, leucograma e metabólitos plasmáticos) de três espécies de tucunarés Cichla monoculus, Cichla temensis e Cichla vazzoleri. Um total de 45 animais foi capturado no lago de Balbina, Presidente Figueiredo, Amazonas, com auxílio de vara e carretilha, linha de mão com isca natural e artificial, sendo 15 C. monoculos, 15 C. temensis e 15 C. vazzoleri. O sangue foi retirado por punção caudal da aorta dorsal e os dados hematológicos foram determinados de acordo com metodologia previamente descrita na literatura. No eritrograma foram observadas similaridades entre as espécies, o trombograma demonstrou diferenças entre o C. vazzoleri e as demais espécies estudadas (C. monoculus e C. temensis), a contagem total de leucócitos demonstrou que em C. temensis e C. vazzoleri os valores são superiores ao C. monoculus. Foi demonstrado que os linfócitos foram às células predominantes em C. temensis e C. vazzoleri, diferentemente do C. monoculos que apresentou como leucócito predominante os monócitos. Nos metabólitos plasmáticos, foi possível observar diferenças entre as três espécies de tucunarés nos níveis de glicose, colesterol, uréia e potássio. Conclui-se que as três espécies de tucunarés apresentam diferenciação hematológica, indicando que as mesmas possuem respostas diferenciadas, na resposta imunológica de suas células do sangue e na fisiologia dos metabólitos plasmáticos.

Influence of early use of antimicrobial on the health and performance of Holstein calves in the first month of life

ABSTRACT: The early use of antimicrobial therapy has been introduced in many farms to prevent diarrhea and respiratory disease in young calves; however, there is controversy about whether this practice has a beneficial effect on the health of these animals. This study evaluated the influence of the early use of antimicrobials on the health and performance of neonatal Holstein calves. Twenty-six Holstein calves were screened and divided into two groups, according to the administration (ATB+), or not (ATB-) of tulathromycin (2.5mg/kg, subcutaneously) within the first 12 hours of life. Calves were evaluated by general clinical examination, fecal score, respiratory score, and external palpation of the umbilical region, besides fecal output of dry matter. Anemia was determined by using an automatic system and, also, using a commercial kit for iron dosage. Diarrhea was diagnosed by a centrifuge-flotation technique using a sugar solution (Cryptosporidium) and multiplex semi-nested RT-PCR (rotavirus/coronavirus). The performance of the calves was estimated by Daily Weight Gain (DWG). The young dairy calves were evaluated within 12 hours of birth (12h) and at 3-5th (D3-5), 7-9th (D7-9), 13-15th (D13-15), 20-23rd (D20-23), and 27-30th (D27-30) days of life. No difference was noted between the ATB+ and ATB- groups concerning heart rate, respiratory frequency, and rectal temperature. Erythrogram showed a higher frequency of anemia in ATB- group (P=0.016) at the D3-5 check-up; lower values of serum iron were also observed simultaneously (P=0.051). Thirteen cases of respiratory disease were detected during this study; however, no significant difference was observed between the groups in this regard. The frequency of diarrhea (fecal score 2-3) was high in both groups, peaking at D13-D15. No differences were noted between the groups regarding the frequency of diarrhea when considering the dry fecal matter. The predominant etiological agent for diarrhea was Cryptosporidium spp.. The DWG was similar between groups, with maximum weight reduction on D13-15. The administration of tulathromycin in prophylactic dose (2.5mg/kg) at birth decreased the frequency of anemia but did not influence weight gain or the prevalence of diarrhea.

RESUMO: O uso precoce de antimicrobianos tem sido adotado em muitas fazendas para profilaxia das diarreias e doença respiratória em bezerras, no entanto existem controvérsias sobre os beneficios desta prática na saúde desses animais. Esta pesquisa avaliou a influência do uso precoce de antimicrobiano na sanidade e desempenho de bezerras holandesas recém-nascidas. Para tanto foram selecionadas 26 bezerras Holandesas distribuídas de acordo com a aplicação (ATB+) ou não (ATB-) de tulatromicina (2,5mg/Kg) por via subcutânea até 12h de vida. As bezerras foram examinadas por meio de exame clínico geral, escore fecal, escore respiratório e palpação externa da região umbilical, além da matéria seca fecal. A presença de anemias foi determinada pelo eritrograma utilizando sistema automático e além da dosagem de ferro utilizando kit comercial. O diagnóstico etiológico das diarreias foi investigado por meio da técnica de flutuação em solução saturada de sacarose (Cryptosporidium) e multiplex semi-nested RT-PCR (rotavírus/coronavírus). O desempenho das bezerras foi estimado pelo ganho de peso. As bezerras foram avaliadas até doze horas após o nascimento (12h); 3-5º (D3-5); 7-9º (D7-9); 13-15º (D13-15); 20-23º (D20-23); e 27-30º dias de vida (D27-30). Não foram encontradas diferenças entre os grupos ATB+ e ATB- em relação à frequência cardíaca, frequência respiratória e temperatura retal. O eritrograma revelou maior frequência de anemias no grupo ATB- (P=0,016) no D3-5. Neste momento também foram observados menores valores de ferro sérico (P=0,051). Foram detectados treze casos de doença respiratória durante o estudo, no entanto não foi possível detectar diferença entre os grupos. A frequência de diarreias (escore fecal 2 e 3) foi alta em ambos os grupos, observando-se pico no D13-15 (ATB+=92,3%; ATB-=92,3%). Não observamos diferenças entre os grupos em relação a frequência de diarreia considerando-se a matéria seca fecal. O agente etiológico predominante nas diarreias foi o Cryptosporidium. O ganho de peso diário foi igual entre grupos, com intensa redução no GPD no D13-15. A administração de tulatromicina na dose profilática (2,5mg/Kg) ao nascimento diminuiu a frequência de anemias e não influenciou no ganho de peso e prevalência de diarreias.

Haematology of Mugil curema from the north coast estuary of Santa Catarina state, Brazil / Hematologia de Mugil curemaem estuário no litoral norte do estado de Santa Catarina, Brasil

Mugil curema é um peixe teleósteo, abundante em regiões costeiras, estuarinas e lagunares, em todo o litoral brasileiro. Os parâmetros sanguíneos podem ser usados como indicadores da saúde e do bem-estar dos peixes, bem como do ambiente onde estes vivem. O objetivo deste estudo foi verificar o perfil hematológico de M. curema ao longo de 18 meses, em águas estuarinas, no Litoral norte do estado de Santa Catarina, sul do Brasil. Um total de 133 peixes foram capturados, entre março de 2016 e agosto de 2017, para realização de eritrograma, leucograma, trombocitograma, porcentagem de hematócrito, dosagem de hemoglobina, dosagem de proteína plasmática total, volume corpuscular médio (VCM), hemoglobina corpuscular média (HCM) e concentração de hemoglobina corpuscular média (CHCM). Não houve diferença significativa (P>0,05) entre o número total de eritrócitos entre machos e fêmeas. No entanto, houve diferença no hematócrito, entre machos e peixes de sexo indeterminado. As influências do espaço temporal e geográfico, entre os valores dos parâmetros hematológicos, nos diferentes estudos do litoral brasileiro são discutidas. A presente investigação é importante contribuição para o estabelecimento de um padrão hematológico para M. curema. A população local de peixes estudada tem comportamento próprio em descritores hematológicos, diferenciado de outros estudos no litoral brasileiro(AU)

Mugil curema is a teleost fish often found in coastal, estuarine and lagoon regions throughout the Brazilian coast. Blood parameters may be used as health and welfare indicators of the fish, as well as the environment they live in. The aim of this study was to verify the hematologic profile of the M.curema along 18 months in estuary waters from the north coast of the state of Santa Catarina in the south of Brazil. A total of 133 M. curema fish were captured from March 2016 to August 2017. Erythrogram, leukogram, thrombocytogram, hematocrit percentage, hemoglobin dosage, total plasma protein dosage, mean corpuscular volume (MCV), mean corpuscular hemoglobin (MCH) and medium corpuscular hemoglobin concentration (MCHC) were analyzed. There was no significant difference (P>0.05) on the total number of erythrocytes between the fish gender. However, there was difference on the hematocrit between males and indefinite gender fish. The influences of temporal and geographical space, among the values of hematological parameters, in the different studies of the Brazilian coast are discussed.. The present research is an important contribution to establish a hematological pattern for M. curema. The local population of the studied fish has a proper behavior in hematological descriptors, which is different from other Brazilian coast studies with the same fish species.(AU)

Haematology of Mugil curema from the north coast estuary of Santa Catarina state, Brazil / Hematologia de Mugil curemaem estuário no litoral norte do estado de Santa Catarina, Brasil

Mugil curema é um peixe teleósteo, abundante em regiões costeiras, estuarinas e lagunares, em todo o litoral brasileiro. Os parâmetros sanguíneos podem ser usados como indicadores da saúde e do bem-estar dos peixes, bem como do ambiente onde estes vivem. O objetivo deste estudo foi verificar o perfil hematológico de M. curema ao longo de 18 meses, em águas estuarinas, no Litoral norte do estado de Santa Catarina, sul do Brasil. Um total de 133 peixes foram capturados, entre março de 2016 e agosto de 2017, para realização de eritrograma, leucograma, trombocitograma, porcentagem de hematócrito, dosagem de hemoglobina, dosagem de proteína plasmática total, volume corpuscular médio (VCM), hemoglobina corpuscular média (HCM) e concentração de hemoglobina corpuscular média (CHCM). Não houve diferença significativa (P>0,05) entre o número total de eritrócitos entre machos e fêmeas. No entanto, houve diferença no hematócrito, entre machos e peixes de sexo indeterminado. As influências do espaço temporal e geográfico, entre os valores dos parâmetros hematológicos, nos diferentes estudos do litoral brasileiro são discutidas. A presente investigação é importante contribuição para o estabelecimento de um padrão hematológico para M. curema. A população local de peixes estudada tem comportamento próprio em descritores hematológicos, diferenciado de outros estudos no litoral brasileiro

Mugil curema is a teleost fish often found in coastal, estuarine and lagoon regions throughout the Brazilian coast. Blood parameters may be used as health and welfare indicators of the fish, as well as the environment they live in. The aim of this study was to verify the hematologic profile of the M.curema along 18 months in estuary waters from the north coast of the state of Santa Catarina in the south of Brazil. A total of 133 M. curema fish were captured from March 2016 to August 2017. Erythrogram, leukogram, thrombocytogram, hematocrit percentage, hemoglobin dosage, total plasma protein dosage, mean corpuscular volume (MCV), mean corpuscular hemoglobin (MCH) and medium corpuscular hemoglobin concentration (MCHC) were analyzed. There was no significant difference (P>0.05) on the total number of erythrocytes between the fish gender. However, there was difference on the hematocrit between males and indefinite gender fish. The influences of temporal and geographical space, among the values of hematological parameters, in the different studies of the Brazilian coast are discussed.. The present research is an important contribution to establish a hematological pattern for M. curema. The local population of the studied fish has a proper behavior in hematological descriptors, which is different from other Brazilian coast studies with the same fish species.

Análise clínico-laboratorial de um felino com esporotricose cutânea / Clinical-laboratory analysis of a feline with cutaneous sporotricosis

A esporotricose é uma micose subcutânea piogranulomatosa causada por um fungo saprófito que acomete grande variedade de animais e também os humanos. O diagnóstico baseia-se na anamnese, exame físico e exames complementares tais como citopatológico da secreção, histopatológico da pele acometida e no estudo morfológico macro e microscópico da cultura fúngica. O presente estudo tem como objetivo descrever os achados laboratoriais de um felino com esporotricose, associando-os com a forma clínica desta enfermidade. Um gato doméstico foi atendido no Hospital Veterinário Universitário Prof. Dr. Ivon Macêdo Tabosa no município de Patos, no estado da Paraíba, em julho de 2019. O paciente apresentava feridas na orelha com presença de secreção, aumento de volume com coloração avermelhada, áreas circulares de alopecia e descamação no membro pélvico esquerdo. Foi solicitado hemograma, bioquímica sérica, citologia e cultura micológica. Não houve alterações no eritrograma e plaquetograma. No leucograma, observou-se leucocitose com desvio a esquerda regenerativo. O exame citopatológico da lesão apresentou estruturas compatíveis com leveduras de Sporothrix spp. no fundo de lâmina e no interior dos leucócitos. No entanto, é sugerido que outros métodos diferenciais de diagnósticos sejam indicados para não excluir a possibilidade da doença.

Sporotrichosis is a subcutaneous pyogranulomatous mycosis caused by a fungus that affects a wide variety of animals and humans. Its diagnosis is based on anamnesis, physical examination, and complementary exams such as cytopathology of the secretion, histopathology of the injured skin and the macro and microscopic morphological study of fungal culture. This study aims to describe the laboratory findings of a feline with sporotrichosis, associating them with the clinical form of this disease. A domestic cat was treated at the University Veterinarian Hospital Prof. Dr. Ivon Macêdo Tabosa in the city of Patos, State of Paraíba, in july 2019. The patient had ear wounds with secretion, swelling with reddish color, circular areas of alopecia and flaking in the left pelvic limb. Blood count, serum biochemistry, cytology and mycological culture exams were requested. There were no changes in the erythrogram and platelet chart. In the leukogram, it was observed leukocytosis with a left regenerative deviation. The cytopathological examination of the lesion showed structures compatible with yeasts of Sporothrix spp. At the bottom of the slide and inside the leukocytes. However, it is suggested that other differential methods of diagnosis be indicated in order not to exclude the possibility of the disease.