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1.
Acta sci. vet. (Impr.) ; 49(supl.1): 712, 2021. ilus
Artigo em Inglês | VETINDEX | ID: biblio-1363898

Resumo

Background: Although the etiology of hepatogenous photosensitization has not yet been fully elucidated, it is known that hepatotoxic substances (saponins) present in grasses of the genus Brachiaria spp. are responsible for intoxication of ruminants and horses, causing great economic losses in the whole world. Since this grass is the source of food for the herd in Brazil, and other countries of the world, the aim of this paper is to describe the epidemiological, clinical, laboratory and anatomopathological aspects of a steer with this disease. Case: A 3-year-old Nellore steer was referred to veterinary care at a property in Bahia, with a 3-week history of swelling, loss of cutaneous tissue in the ear and scrotum region, and dry faeces. The animal was raised in pasture with Brachiaria decumbens along with five animals of different age and sex; however, it was the only one to present symptoms. Although the animal had been treated at the farm, there was no clinical improvement. On clinical examination, the steer was apathetic with jaundiced mucous membranes, nasal and ocular discharge, epiphora, and ulcers on the labial and gum commissure. The steer had leukocytosis with neutrophilia, anemia, and hyperfibrinogemia. The body condition score (BCS) was 2 (BCS ranges from 1 to 5), and the skin lesions observed were bedsores, necrosis and scabs in several regions. The increase in liver enzymes (GGT, AST) indicated hepatic impairment, suggesting a case of hepatogenous photosensitization. The therapeutic protocol instituted was enteral hydration, electrolyte replacement, topical application of ointment in the injured areas. In addition, it was recommended to maintain the animal in the shade, supply of good quality grass, and a new clinical evaluation in seven days. On new examination, it was observed that there was no satisfactory clinical improvement of the animal, and persistence of laboratory changes. Despite the poor prognosis, treatment was continued for another month with the same recommendations. However, in view of the severe clinical condition and unfavorable prognosis, the animal was submitted euthanasia. Necropsy revealed extensive areas of bedsores, erythema, severe jaundice in the mucous membranes, eyeballs and opaque corneas. The liver had an enlarged volume with bulging edges and a greenish color. The kidneys had a pale brownish color, with an irregular and mottled subcapsular surface, with blackened and depressed spots. Histologically, the cytoplasm of the hepatocytes was finely vacuolated, sometimes refringent and with an abundant presence of bile pigment. It was also observed in the middle of the liver parenchyma, multiple foci of accumulation of macrophages filled with vacuoles of different sizes containing saponins and crystals of saponins inside bile ducts. Furthermore, it was possible to observe hypertrophy and hyperplasia of Kupffer cells, disarrangement of hepatocytes with individual necrosis of hepatocytes. Discussion: The diagnosis of hepatogenous photosensitization was based on history, clinical, laboratory and anatomopathological findings. Serum biochemistry was important to measure hepatic impairment and possible secondary lesions, which were confirmed by the necropsy. Although hepatogenous photosensitization is less common in adult cattle, it must be considered in the differential diagnosis of skin lesions, reduced appetite, and jaundice. Since it was a sporadic case, individual predisposition is probably a preponderant factor.


Assuntos
Animais , Bovinos , Transtornos de Fotossensibilidade/veterinária , Saponinas/toxicidade , Brachiaria/toxicidade , Fígado/lesões , Ração Animal/análise , Hepatopatias/veterinária
2.
Semina ciênc. agrar ; 42(4): 2359-2370, jul.-ago. 2021. tab
Artigo em Inglês | VETINDEX | ID: biblio-1370863

Resumo

Here, the efficiency of applying subdoses of equine chorionic gonadotropin (eCG) and prostaglandin F2α (PGF2α) at the Bai Hui (BH) acupoint for estrus synchronization in sheep was evaluated. Thirty Santa Inês ewes received intravaginal sponges containing 60 mg medroxyprogesterone acetate for 7 days. The animals were divided into five treatments (T) (n=6): T1 (control), 132.5 µg PGF2α (100% of dose) and 300 IU eCG (100% of dose), both intramuscularly (IM); T2, 39.75 µg PGF2α (30% of dose) at the BH acupoint and 300 IU eCG (100% of dose) IM; T3, 132.5 µg PGF2α (100% of dose) IM and 90 IU eCG (30% of dose) at the BH acupoint; T4, 39.75 µg PGF2α (30% of dose) and 90 IU eCG (30% of dose), both at the BH acupoint; and T5, 39.75 µg PGF2α (30% of dose) and 90 IU eCG (30% of dose) both at a false acupoint (IM, at the same location as in T1). After 12 h of sponge removal and hormone application, the ewes were subjected to monitoring for estrus and mating and ultrasound assessments of follicular growth and ovulation time every 12 h. The data were evaluated for normality and subjected to analysis of variance, considering a 5% probability. There were no differences in the percentage of animals in estrus (93.3±9.1%), interval from sponge removal to estrus onset (48.1±6.0 h), interval from sponge removal to estrus end (69.6±5.4 h), duration of estrus (24.0±4.7 h), interval from sponge removal to ovulation (73.7±5.9 h), interval from estrus onset to ovulation (26.5±2.3 h), size of the largest follicle (6.7±0.4 mm), follicular growth rate (0.8±0.1 mm•day-1), number of ovulations (1.3±0.1), and plasma progesterone levels 7 days after ovulation (9.6±2.0 ng•mL-1). The cost of the synchronization protocol per animal was US$ 4.37, 4.12, 2.96, 2.71, and 2.71 for T1, T2, T3, T4, and T5, respectively, with 37.99% cost reduction using PGF2α and eCG at 30% of the conventional doses. Therefore, the application of reduced PGF2α (39.75 µg) and eCG (90 IU) doses at the BH or false acupoint effectively synchronized estrus and reduced protocol cost in sheep, indicating that the conventional doses are overestimated.(AU)


Aqui, foi avaliada a eficiência da aplicação de subdoses de gonadotrofina coriônica equina (eCG) e prostaglandina F2α (PGF2α) no ponto de acupuntura Bai Hui (BH) para sincronização de estro em ovelhas. Trinta ovelhas Santa Inês receberam esponjas intravaginais contendo 60 mg de acetato de medroxiprogesterona por 7 dias. Os animais foram divididos em cinco tratamentos (T) (n=6): T1 (controle), 132,5 µg PGF2α (100% da dose) e 300 UI de eCG (100% da dose), ambos por via intramuscular (IM); T2, 39,75 µg de PGF2α (30% da dose) no ponto de acupuntura BH e 300 UI eCG (100% da dose) IM; T3, 132,5 µg PGF2α (100% da dose) IM e 90 UI eCG (30% da dose) no ponto de acupuntura BH; T4, 39,75 µg PGF2α (30% da dose) e 90 UI eCG (30% da dose), ambos no ponto de acupuntura BH; e T5, 39,75 µg PGF2α (30% da dose) e 90 UI eCG (30% da dose) ambos em um falso acuponto (IM, no mesmo local que em T1). Após 12 horas da retirada da esponja e aplicação do hormônio, as ovelhas foram submetidas ao monitoramento do estro e acasalamento, e avaliação ultrassonográfica do crescimento folicular e tempo de ovulação a cada 12 horas. Os dados foram avaliados quanto à normalidade e submetidos à análise de variância, considerando 5% de probabilidade. Não houve diferenças na porcentagem de animais em estro (93,3 ± 9,1%), intervalo da remoção da esponja ao início do estro (48,1 ± 6,0 h), intervalo da remoção da esponja ao final do estro (69,6 ± 5,4 h), duração do estro (24,0 ± 4,7 h), intervalo da remoção da esponja à ovulação (73,7 ± 5,9 h), intervalo do início do estro à ovulação (26,5 ± 2,3 h), tamanho do maior folículo (6,7 ± 0,4 mm), taxa de crescimento folicular (0,8 ± 0,1 mm•dia-1), número de ovulações (1,3 ± 0,1) e níveis de progesterona plasmática 7 dias após a ovulação (9,6 ± 2,0 ng•mL-1). O custo do protocolo de sincronização por animal foi de US $ 4,37, 4,12, 2,96, 2,71 e 2,71 para T1, T2, T3, T4 e T5, respectivamente, com redução de custo de 37,99% usando PGF2α e eCG a 30% das doses convencionais. Portanto, a aplicação de PGF2α (39,75 µg) e doses reduzidas de eCG (90 UI) no BH ou falso acuponto sincronizaram efetivamente o estro e reduziram o custo do protocolo em ovelhas, indicando que as doses convencionais estão superestimadas.(AU)


Assuntos
Animais , Feminino , Ovinos , Acetato de Medroxiprogesterona , Acupuntura , Sincronização do Estro , Gonadotropina Coriônica , Custos e Análise de Custo
3.
Rev. bras. ciênc. vet ; 28(3): 167-173, jul./set. 2021. il.
Artigo em Inglês | LILACS, VETINDEX | ID: biblio-1366793

Resumo

Hematological and serum biochemical characteristics and prevalence of microorganisms in the uterine content of bitches with pyometra were described, according to type and age. This study was carried out at the Veterinary Medicine Hospital Renato Rodenburg de Medeiros Netto of the UFBA with 132 patients diagnosed with pyometra through imaging and laboratory tests, divided into two groups: Group 1 - less than eight years (n=72) and Group 2 - more than eight years (n=60). Both groups were submitted to Ovariohysterectomy (OH), in which blood and uterine lumen secretion samples were collected. The highest incidence of pyometra was found in bitches under 8 years (54.5%), Poodle breed (31.8%) and mixed-breed (27.3%). Open pyometra represented 80.3% of all cases. The death rate (6.0%) did not show significant difference between the types. Anemia (73.0%), thrombocytopenia (41.2%) and leukocytosis (77.0%) were observed. Urea and ALP were above the reference values in 41.8% and 52.2% of each group, respectively, while ALT (94.0%) and creatine (82%) remained normal in most animals. Serum biochemistry did not show significant differences (P<0.05). Escherichia coli and Klebsiella sp. grew in 33.3% and 16.7% of the samples, respectively. Therefore, no significant hematological and serum biochemical differences were observed in bitches with pyometra in both age categories.


Descreveu-se características hematológicas, bioquímicas séricas e prevalência de microrganismos no conteúdo uterino de cadelas com piometra, de acordo com o tipo e idade. Realizou-se este estudo no Hospital de Medicina Veterinária Renato Rodenburg de Medeiros Netto da UFBA com 132 pacientes diagnosticadas com piometra, por exames de imagem e laboratoriais, divididas em dois grupos: Grupo 1 ­ menos de oito anos (n=72) e Grupo 2 ­ mais de oito anos (n=60), submetidas a Ovariectomia (OH), quando se coletou amostras de sangue e secreção do lúmen uterino. A incidência maior deu-se em cadelas abaixo de 8 anos (54,5%), da raça Poodle (31,8%) e sem raça definida (SRD) (27,3%), sendo 80,3% de piometra aberta. A taxa de óbito (6,0%) não apresentou diferença significativa entre os tipos. Observou-se a ocorrência de anemia (73,0%), trombocitopenia (41,2%) e leucocitose (77,0%). Os valores de ureia e FA estiveram acima dos valores de referência em 41,8% e 52,2% das cadelas respectivamente, enquanto a ALT (94,0%) e a creatina (82%) mantiveram-se dentro dos valores de referência na maioria dos animais. A bioquímica sérica não apresentou diferenças significativas (P<0,05). Observou-se crescimento de Escherichia coli e Klebsiella sp. em 33,3% e 16,7% das amostras, respectivamente. Sendo assim, não se observou diferenças significativas hematológicas e na bioquímica sérica de cadelas com piometra nas categorias de idade.


Assuntos
Animais , Cães , Doenças do Cão , Piometra/veterinária , Bioquímica , Fatores Etários , Hiperplasia Endometrial/veterinária , Testes Hematológicos/veterinária
4.
R. bras. Ci. Vet. ; 28(3): 167-173, 2021. graf, tab
Artigo em Inglês | VETINDEX | ID: vti-765274

Resumo

Hematological and serum biochemical characteristics and prevalence of microorganisms in the uterine content of bitches with pyometra were described, according to type and age. This study was carried out at the Veterinary Medicine Hospital Renato Rodenburg de Medeiros Netto of the UFBA with 132 patients diagnosed with pyometra through imaging and laboratory tests, divided into two groups: Group 1 - less than eight years (n=72) and Group 2 - more than eight years (n=60). Both groups were submitted to Ovariohysterectomy (OH), in which blood and uterine lumen secretion samples were collected. The highest incidence of pyometra was found in bitches under 8 years (54.5%), Poodle breed (31.8%) and mixed-breed (27.3%). Open pyometra represented 80.3% of all cases. The death rate (6.0%) did not show significant difference between the types. Anemia (73.0%), thrombocytopenia (41.2%) and leukocytosis (77.0%) were observed. Urea and ALP were above the reference values in 41.8% and 52.2% of each group, respectively, while ALT (94.0%) and creatine (82%) remained normal in most animals. Serum biochemistry did not show significant differences (P<0.05). Escherichia coli and Klebsiella sp. grew in 33.3% and 16.7% of the samples, respectively. Therefore, no significant hematological and serum biochemical differences were observed in bitches with pyometra in both age categories.(AU)


Descreveu-se características hematológicas, bioquímicas séricas e prevalência de microrganismos no conteúdo uterino de cadelas com piometra, de acordo com o tipo e idade. Realizou-se este estudo no Hospital de Medicina Veterinária Renato Rodenburg de Medeiros Netto da UFBA com 132 pacientes diagnosticadas com piometra, por exames de imagem e laboratoriais, divididas em dois grupos: Grupo 1 menos de oito anos (n=72) e Grupo 2 mais de oito anos (n=60), submetidas a Ovariectomia (OH), quando se coletou amostras de sangue e secreção do lúmen uterino. A incidência maior deu-se em cadelas abaixo de 8 anos (54,5%), da raça Poodle (31,8%) e sem raça definida (SRD) (27,3%), sendo 80,3% de piometra aberta. A taxa de óbito (6,0%) não apresentou diferença significativa entre os tipos. Observou-se a ocorrência de anemia (73,0%), trombocitopenia (41,2%) e leucocitose (77,0%). Os valores de ureia e FA estiveram acima dos valores de referência em 41,8% e 52,2% das cadelas respectivamente, enquanto a ALT (94,0%) e a creatina (82%) mantiveram-se dentro dos valores de referência na maioria dos animais. A bioquímica sérica não apresentou diferenças significativas (P<0,05). Observou-se crescimento de Escherichia coli e Klebsiella sp. em 33,3% e 16,7% das amostras, respectivamente. Sendo assim, não se observou diferenças significativas hematológicas e na bioquímica sérica de cadelas com piometra nas categorias de idade.(AU)


Assuntos
Animais , Cães , Cães/sangue , Piometra/classificação , Piometra/diagnóstico , Contagem de Células Sanguíneas/veterinária , Biomarcadores/análise , Biomarcadores/sangue , Útero , Infecções Bacterianas
5.
Rev. bras. ciênc. vet ; 28(3): 167-173, jul./set. 2021. graf, tab
Artigo em Inglês | LILACS, VETINDEX | ID: biblio-1491719

Resumo

Hematological and serum biochemical characteristics and prevalence of microorganisms in the uterine content of bitches with pyometra were described, according to type and age. This study was carried out at the Veterinary Medicine Hospital Renato Rodenburg de Medeiros Netto of the UFBA with 132 patients diagnosed with pyometra through imaging and laboratory tests, divided into two groups: Group 1 - less than eight years (n=72) and Group 2 - more than eight years (n=60). Both groups were submitted to Ovariohysterectomy (OH), in which blood and uterine lumen secretion samples were collected. The highest incidence of pyometra was found in bitches under 8 years (54.5%), Poodle breed (31.8%) and mixed-breed (27.3%). Open pyometra represented 80.3% of all cases. The death rate (6.0%) did not show significant difference between the types. Anemia (73.0%), thrombocytopenia (41.2%) and leukocytosis (77.0%) were observed. Urea and ALP were above the reference values in 41.8% and 52.2% of each group, respectively, while ALT (94.0%) and creatine (82%) remained normal in most animals. Serum biochemistry did not show significant differences (P<0.05). Escherichia coli and Klebsiella sp. grew in 33.3% and 16.7% of the samples, respectively. Therefore, no significant hematological and serum biochemical differences were observed in bitches with pyometra in both age categories.


Descreveu-se características hematológicas, bioquímicas séricas e prevalência de microrganismos no conteúdo uterino de cadelas com piometra, de acordo com o tipo e idade. Realizou-se este estudo no Hospital de Medicina Veterinária Renato Rodenburg de Medeiros Netto da UFBA com 132 pacientes diagnosticadas com piometra, por exames de imagem e laboratoriais, divididas em dois grupos: Grupo 1 – menos de oito anos (n=72) e Grupo 2 – mais de oito anos (n=60), submetidas a Ovariectomia (OH), quando se coletou amostras de sangue e secreção do lúmen uterino. A incidência maior deu-se em cadelas abaixo de 8 anos (54,5%), da raça Poodle (31,8%) e sem raça definida (SRD) (27,3%), sendo 80,3% de piometra aberta. A taxa de óbito (6,0%) não apresentou diferença significativa entre os tipos. Observou-se a ocorrência de anemia (73,0%), trombocitopenia (41,2%) e leucocitose (77,0%). Os valores de ureia e FA estiveram acima dos valores de referência em 41,8% e 52,2% das cadelas respectivamente, enquanto a ALT (94,0%) e a creatina (82%) mantiveram-se dentro dos valores de referência na maioria dos animais. A bioquímica sérica não apresentou diferenças significativas (P<0,05). Observou-se crescimento de Escherichia coli e Klebsiella sp. em 33,3% e 16,7% das amostras, respectivamente. Sendo assim, não se observou diferenças significativas hematológicas e na bioquímica sérica de cadelas com piometra nas categorias de idade.


Assuntos
Animais , Cães , Biomarcadores/análise , Biomarcadores/sangue , Contagem de Células Sanguíneas/veterinária , Cães/sangue , Piometra/classificação , Piometra/diagnóstico , Útero , Infecções Bacterianas
6.
Anim. Reprod. ; 17(3): [e20200037], 2020. ilus, tab, graf
Artigo em Inglês | VETINDEX | ID: vti-28782

Resumo

Due to the peculiarities of the reproductive cycle of the female dog, which makes it difficult to accurately ascertain the date of conception, it may be challenging to precisely estimate the gestational age in bitches. Using fetal measurements obtained by ultrasound, it is possible to estimate the gestational age in dogs; however, due to the differences in size of the various breeds, such estimates may have a significant standard deviation, which represents less accuracy when specifying the date of birth. The purpose of this study was to evaluate pregnant female Chihuahuas, establishing relations between the fetal dimensions measured by ultrasound and the remaining time until delivery. Using 13 pregnant female Chihuahuas, weekly ultrasound assessments and measurements were performed, of the inner chorionic cavity, cranial-caudal length, biparietal diameter, abdominal diameter and thoracic diameter. Such parameters were retroactively correlated to the date of delivery, and linear regressions were established between the gestational measurements and remaining days until delivery. The fetal measurement presenting the highest correlation (r = 0.99; P<0.0001) and reliability (R2 = 0.98, P<0.0001) with the probable date of delivery was the biparietal diameter, a measurement that can be easily and safely obtained and, when applying a specific formula (Y = -15.46X1 + 38.72), can accurately predict the date of delivery in Chihuahua female dogs.(AU)


Assuntos
Animais , Feminino , Cães , Cães/fisiologia , Cães/embriologia , Ultrassonografia/métodos , Ultrassonografia/veterinária , Prenhez
7.
Anim. Reprod. (Online) ; 17(3): [e20200037], 2020. ilus, tab, graf
Artigo em Inglês | VETINDEX | ID: biblio-1461525

Resumo

Due to the peculiarities of the reproductive cycle of the female dog, which makes it difficult to accurately ascertain the date of conception, it may be challenging to precisely estimate the gestational age in bitches. Using fetal measurements obtained by ultrasound, it is possible to estimate the gestational age in dogs; however, due to the differences in size of the various breeds, such estimates may have a significant standard deviation, which represents less accuracy when specifying the date of birth. The purpose of this study was to evaluate pregnant female Chihuahuas, establishing relations between the fetal dimensions measured by ultrasound and the remaining time until delivery. Using 13 pregnant female Chihuahuas, weekly ultrasound assessments and measurements were performed, of the inner chorionic cavity, cranial-caudal length, biparietal diameter, abdominal diameter and thoracic diameter. Such parameters were retroactively correlated to the date of delivery, and linear regressions were established between the gestational measurements and remaining days until delivery. The fetal measurement presenting the highest correlation (r = 0.99; P<0.0001) and reliability (R2 = 0.98, P<0.0001) with the probable date of delivery was the biparietal diameter, a measurement that can be easily and safely obtained and, when applying a specific formula (Y = -15.46X1 + 38.72), can accurately predict the date of delivery in Chihuahua female dogs.


Assuntos
Feminino , Animais , Cães , Cães/embriologia , Cães/fisiologia , Ultrassonografia/métodos , Ultrassonografia/veterinária , Prenhez
8.
Acta sci. vet. (Impr.) ; 47(suppl.1): Pub.442-2019. ilus
Artigo em Inglês | VETINDEX | ID: biblio-1458206

Resumo

Background: The hepatocellular carcinoma (HCC) is a malignant neoplasm of hepatocytes of rare occurrence in farmanimals, with ruminants being the most affected species. This neoplasm is characterized by nonspecific symptoms and it isetiology in animals has not yet been fully elucidated, although aflatoxin has been shown to be a risk factor in the development this neoplasia. Since hepatic tumors in cattle are commonly incidental findings found in postmortem examination,the objective of this paper is to describe the clinical, laboratory and pathological findings in a cow with this neoplasm.Case: A 5-year-old, adult, Girolando cow weighing 350 kg was referred to the Veterinary Hospital of the Federal University of Recôncavo da Bahia, Brazil, with a history of decreased appetite and weakness for one month. The animal wasraised in a semi-intensive system, with a corn-based diet, and regular vaccination. Futhermore, was not treated at the farmof origin and three days before being admitted to the hospital, began to present edema of the dewlap. On examination atour center, the cow was in lean, active, with mucupurulent secretion in nostrils; ocular conjunctiva edema; and edema ofthe dewlap. The cow had neutrophilia, hypofibrinogemia, hypoproteinemia, and trombocytopenia. It also had tachycardia, tense abdomen, engorgement of the vessels of the face and jugular veins, stasis test and bilaterally positive jugularpulse. Although evidence of pain in reticulum was negative in the examination, the initial diagnostic suspicion establishedwas of traumatic reticular pericarditis. The therapeutic protocol instituted was daily monitoring, flunixin meglumine andflofernicol. The examination of rectal palpation revealed in the right flank an irregular-sized parenchymal structure withenlarged and palpacion in pain. Thus, by location and texture...


Assuntos
Bovinos , Carcinoma Hepatocelular/patologia , Carcinoma Hepatocelular/veterinária , Aflatoxinas , Hepatopatias/veterinária
9.
Acta sci. vet. (Online) ; 47(suppl.1): Pub. 442, Nov. 22, 2019. ilus
Artigo em Inglês | VETINDEX | ID: vti-25858

Resumo

Background: The hepatocellular carcinoma (HCC) is a malignant neoplasm of hepatocytes of rare occurrence in farmanimals, with ruminants being the most affected species. This neoplasm is characterized by nonspecific symptoms and it isetiology in animals has not yet been fully elucidated, although aflatoxin has been shown to be a risk factor in the development this neoplasia. Since hepatic tumors in cattle are commonly incidental findings found in postmortem examination,the objective of this paper is to describe the clinical, laboratory and pathological findings in a cow with this neoplasm.Case: A 5-year-old, adult, Girolando cow weighing 350 kg was referred to the Veterinary Hospital of the Federal University of Recôncavo da Bahia, Brazil, with a history of decreased appetite and weakness for one month. The animal wasraised in a semi-intensive system, with a corn-based diet, and regular vaccination. Futhermore, was not treated at the farmof origin and three days before being admitted to the hospital, began to present edema of the dewlap. On examination atour center, the cow was in lean, active, with mucupurulent secretion in nostrils; ocular conjunctiva edema; and edema ofthe dewlap. The cow had neutrophilia, hypofibrinogemia, hypoproteinemia, and trombocytopenia. It also had tachycardia, tense abdomen, engorgement of the vessels of the face and jugular veins, stasis test and bilaterally positive jugularpulse. Although evidence of pain in reticulum was negative in the examination, the initial diagnostic suspicion establishedwas of traumatic reticular pericarditis. The therapeutic protocol instituted was daily monitoring, flunixin meglumine andflofernicol. The examination of rectal palpation revealed in the right flank an irregular-sized parenchymal structure withenlarged and palpacion in pain. Thus, by location and texture...(AU)


Assuntos
Bovinos , Carcinoma Hepatocelular/patologia , Carcinoma Hepatocelular/veterinária , Hepatopatias/veterinária , Aflatoxinas
10.
Semina Ci. agr. ; 40(6): 2625-2636, Nov.-Dec. 2019. tab
Artigo em Inglês | VETINDEX | ID: vti-28621

Resumo

This study evaluated the efficiency application of low dose of equine chorionic gonadotropin (eCG) using Hou Hai acupoint for fixed-term artificial insemination (FTAI) in beef cows. Seventy cows received intravaginal devices with progesterone, and 3 mg of estradiol benzoate on day zero (D0) of FTAI. On D9, the devices were removed, and 150 μg of prostaglandin F2α was applied; the animals were then randomly distributed to three treatment groups: T1 (n = 23), 300 IU of eCG intramuscularly (IM); T2 (n = 23), 90 IU of eCG at acupoint Hou Hai; and T3 (n = 25), 90 IU of eCG at false acupoint IM. On D10, the animals received 1 mg of gonadotropin-releasing hormone IM, and FTAI was performed, 52 h after the devices were removed. The quantitative variables with normal distribution were assessed using analysis of variance at 5% probability. For variables that did not show normal distribution, Kruskal-Wallis test at 5% probability was used. No significant difference was noted among the groups (P > 0.05) for the interval between device withdrawal at ovulation (58.2 ± 12.2 h), diameter of the largest follicle on D9 (9.9 ± 2.2 mm), diameters of the ovulatory follicle (12.2 ± 3.0 mm) and the second largest follicle (6.7 ± 2.1 mm), follicular growth rate (0.8 ± 0.3 mm/d), ovulation rate (82%), corpus luteum size (2.32 ± 0.35 cm2), and pregnancy rate (58.67%). The protocol cost per animal was US$ 10.67 (T1) and US$ 8.50 (T2 and T3). The use of 90 IU of eCG applied at Hou Hai acupoint or at false acupoint caused satisfactory synchronization of estrus in beef cows. In addition, this procedure was cost-effective.(AU)


Avaliou-se a eficiência da aplicação de subdose gonadotrofina coriônica equina (eCG) utulizando como via de administração o acuponto Hou Hai em protocolos de inseminação artificial em tempo fixo (IATF) para vacas de corte. Setenta vacas receberam no dia zero (D0) do protocolo dispositivos intravaginais com progesterona, e 3mg de benzoato de estradiol. No D9 foram retirados os dispositivos, aplicado 150µg de prostaglandina F2α e distribuídos os animais aleatoriamente em três tratamentos: T1 (n=23) - 300UI de eCG por via intra muscular (IM); T2 (n=23) - 90UI de eCG no acuponto Hou Hai e T3 (n=25) - 90UI de eCG em falso acuponto, IM. No D10 os animais receberam 1mg de GnRH por via IM e foi realizada a IATF, 52 horas após a retirada dos dispositivos. Para as variáveis quantitativas com distribuição normal foi utilizada ANOVA, a 5% de probabilidade. Para as variáveis que não apresentaram distribuição normal, utilizou-se o teste de Kruskal-Wallis, a 5% de probabilidade. Não houve diferença (P >0,05) para o intervalo entre a retirada do dispositivo à ovulação (58,2 ± 12,2h), diâmetro do maior folículo no D9 (9,9 ± 2,2mm), diâmetros do folículo ovulatório (12,2 ± 3,0mm) e do segundo maior folículo (6,7 ± 2,1mm), taxa de crescimento folicular (0,8 ± 0,3mm/d), taxa de ovulação (82%), área de corpo lúteo (2,32 ± 0,35 cm2) e taxa de prenhez (58,67%). O custo do protocolo por animal foi de US$ 10,67 (T1) e US$ 8,50 (T2 e T3). Sugere-se que a utilização de 90UI de eCG aplicada no acuponto Hou Hai ou em falso acuponto foram satisfatórios na sincronização de estro de vacas de corte. Além disso, possibilita a redução do custo do protocolo.(AU)


Assuntos
Animais , Feminino , Bovinos , Gonadotropina Coriônica/administração & dosagem , Gonadotropinas Equinas/administração & dosagem , Inseminação Artificial/veterinária , Sincronização do Estro
11.
Semina ciênc. agrar ; 40(6): 2625-2636, Nov.-Dec. 2019. tab
Artigo em Inglês | VETINDEX | ID: biblio-1501537

Resumo

This study evaluated the efficiency application of low dose of equine chorionic gonadotropin (eCG) using Hou Hai acupoint for fixed-term artificial insemination (FTAI) in beef cows. Seventy cows received intravaginal devices with progesterone, and 3 mg of estradiol benzoate on day zero (D0) of FTAI. On D9, the devices were removed, and 150 μg of prostaglandin F2α was applied; the animals were then randomly distributed to three treatment groups: T1 (n = 23), 300 IU of eCG intramuscularly (IM); T2 (n = 23), 90 IU of eCG at acupoint Hou Hai; and T3 (n = 25), 90 IU of eCG at false acupoint IM. On D10, the animals received 1 mg of gonadotropin-releasing hormone IM, and FTAI was performed, 52 h after the devices were removed. The quantitative variables with normal distribution were assessed using analysis of variance at 5% probability. For variables that did not show normal distribution, Kruskal-Wallis test at 5% probability was used. No significant difference was noted among the groups (P > 0.05) for the interval between device withdrawal at ovulation (58.2 ± 12.2 h), diameter of the largest follicle on D9 (9.9 ± 2.2 mm), diameters of the ovulatory follicle (12.2 ± 3.0 mm) and the second largest follicle (6.7 ± 2.1 mm), follicular growth rate (0.8 ± 0.3 mm/d), ovulation rate (82%), corpus luteum size (2.32 ± 0.35 cm2), and pregnancy rate (58.67%). The protocol cost per animal was US$ 10.67 (T1) and US$ 8.50 (T2 and T3). The use of 90 IU of eCG applied at Hou Hai acupoint or at false acupoint caused satisfactory synchronization of estrus in beef cows. In addition, this procedure was cost-effective.


Avaliou-se a eficiência da aplicação de subdose gonadotrofina coriônica equina (eCG) utulizando como via de administração o acuponto Hou Hai em protocolos de inseminação artificial em tempo fixo (IATF) para vacas de corte. Setenta vacas receberam no dia zero (D0) do protocolo dispositivos intravaginais com progesterona, e 3mg de benzoato de estradiol. No D9 foram retirados os dispositivos, aplicado 150µg de prostaglandina F2α e distribuídos os animais aleatoriamente em três tratamentos: T1 (n=23) - 300UI de eCG por via intra muscular (IM); T2 (n=23) - 90UI de eCG no acuponto Hou Hai e T3 (n=25) - 90UI de eCG em falso acuponto, IM. No D10 os animais receberam 1mg de GnRH por via IM e foi realizada a IATF, 52 horas após a retirada dos dispositivos. Para as variáveis quantitativas com distribuição normal foi utilizada ANOVA, a 5% de probabilidade. Para as variáveis que não apresentaram distribuição normal, utilizou-se o teste de Kruskal-Wallis, a 5% de probabilidade. Não houve diferença (P >0,05) para o intervalo entre a retirada do dispositivo à ovulação (58,2 ± 12,2h), diâmetro do maior folículo no D9 (9,9 ± 2,2mm), diâmetros do folículo ovulatório (12,2 ± 3,0mm) e do segundo maior folículo (6,7 ± 2,1mm), taxa de crescimento folicular (0,8 ± 0,3mm/d), taxa de ovulação (82%), área de corpo lúteo (2,32 ± 0,35 cm2) e taxa de prenhez (58,67%). O custo do protocolo por animal foi de US$ 10,67 (T1) e US$ 8,50 (T2 e T3). Sugere-se que a utilização de 90UI de eCG aplicada no acuponto Hou Hai ou em falso acuponto foram satisfatórios na sincronização de estro de vacas de corte. Além disso, possibilita a redução do custo do protocolo.


Assuntos
Feminino , Animais , Bovinos , Gonadotropina Coriônica/administração & dosagem , Gonadotropinas Equinas/administração & dosagem , Inseminação Artificial/veterinária , Sincronização do Estro
12.
Semina Ci. agr. ; 40(4): 1501-1512, jul.-ago. 2019. tab
Artigo em Inglês | VETINDEX | ID: vti-21954

Resumo

The objective of this study was to evaluate the efficacy of delivering reduced doses of hormones via the Bai Hui acupoint in estrus synchronization in goats. A total of 40 goats received intravaginal sponges with medroxyprogesterone acetate for 7 days. The goats were then randomly distributed into 5 treatment: T1 - application of 132.5 μg of cloprostenol and 300 IU of equine chorionic gonadotropin (eCG), both by intramuscular injection (IM); T2 - application of 39.75 μg cloprostenol at the Bai Hui acupoint, and 300 IU of eCG by IM; T3 - application of 132.5 μg of cloprostenol by IM, and 90 IU of eCG at the Bai Hui acupoint; T4 - application of 39.75μg of cloprostenol and 90 UI of eCG, both in Bai Hui and T5 acupuncture: application of 39.75μg of cloprostenol and 90 UI of eCG, both applied in false acupoint. The goats were subjected to an estrus synchronization protocol and monitored for estrus detection, coverage and evaluation of reproductive parameters to detect entry into estrus. The data were subjected to normality tests, followed by appropriate statistical analyses of each variable. There was no significant difference (P > 0.05) in the percentage of animals in estrus (95.00 ± 11.18%), interval between sponge removal and beginning of estrus (49.72 ± 8.93 h), interval between sponge removal and end of estrus (76.84 ± 11.98 h), duration of estrus (27.08 ± 8.68 h), size of the largest follicle (6.82 ± 0.44 mm), interval between sponge removal and ovulation (78.28 ± 10.82 h), time from ovarian onset to estrus (28.52 ± 5.44 h), follicular growth rate (0.86 ± 0.29 mm/day), number of ovulations (1.32 ± 0.23), plasma progesterone concentration at 7 days after ovulation (10.28 ± 1.65 ng.mL-1), and gestation rate at 30 days after the beginning of estrus (75 ± 12.5%). However, the cost of the synchronization protocol per animal was 43.42% lower in treatments 4 and 5 (30% of the doses) than in treatment 1 (100% of the dose)...(AU)


O objetivo com o estudo foi avaliar a utilização de subdoses hormonais aplicadas no acuponto Bai Hui em protocolos de sincronização de estro em cabras. Foram utilizadas 40 cabras, as quais receberam esponjas intravaginais com acetato de medroxiprogesterona durante 7 dias, quando foram distribuídas aleatoriamente em 5 tratamentos: T1: aplicação de 132,5μg de cloprostenol e 300UI de eCG, ambos por via intramuscular (IM); T2: aplicação de 39,75μg de cloprostenol no acuponto Bai Hui e 300UI de eCG IM; T3: aplicação de 132,5μg de cloprostenol IM e 90UI de eCG no acuponto Bai Hui; T4: aplicação de 39,75μg de cloprostenol e 90UI de eCG, ambos no acuponto Bai Hui e T5: aplicação de 39,75μg de cloprostenol e 90UI de eCG, ambos aplicados em falso acuponto. As cabras foram submetidas à protocolo de sincronização de estro e monitoradas para detecção de estro, realização das coberturas e avaliação dos parâmetros reprodutivos. Os dados foram submetidos à análise de normalidade, seguido dos testes estatísticos adequados para cada variável. Não obteve-se diferença (p > 0,05) para porcentagem de animais em estro (95,00 ± 11,18%), intervalo da retirada da esponja ao início do estro (49,72 ± 8,93h), intervalo da retirada da esponja ao final do estro (76,84 ± 11,98h), duração do estro (27,08 ± 8,68h), tamanho do maior folículo (6,82 ± 0,44mm), intervalo da retirada da esponja à ovulação (78,28 ± 10,82h), intervalo do início do estro à ovulação (28,52 ± 5,44h), taxa de crescimento folicular (0,86 ± 0,29mm/dia), número de ovulações (1,32 ± 0,23), concentração de progesterona plasmática aos 7 dias após ovulação (10,28 ± 1,65ng.mL-1) e para taxa de gestação aos 30 dias (75 ± 12,5%). Porém, o custo do protocolo de sincronização por animal foi 43,42% menor para os tratamentos T4 e T5 (30% da dose) comparado com o T1 (100% da dose)...(AU)


Assuntos
Animais , Feminino , Cabras/embriologia , Terapia por Acupuntura/veterinária , Terapia por Acupuntura/métodos , Técnicas Reprodutivas/veterinária , Cruzamento/métodos , Sincronização do Estro/métodos
13.
Semina ciênc. agrar ; 40(4): 1501-1512, jul.-ago. 2019. tab
Artigo em Inglês | VETINDEX | ID: biblio-1501440

Resumo

The objective of this study was to evaluate the efficacy of delivering reduced doses of hormones via the Bai Hui acupoint in estrus synchronization in goats. A total of 40 goats received intravaginal sponges with medroxyprogesterone acetate for 7 days. The goats were then randomly distributed into 5 treatment: T1 - application of 132.5 μg of cloprostenol and 300 IU of equine chorionic gonadotropin (eCG), both by intramuscular injection (IM); T2 - application of 39.75 μg cloprostenol at the Bai Hui acupoint, and 300 IU of eCG by IM; T3 - application of 132.5 μg of cloprostenol by IM, and 90 IU of eCG at the Bai Hui acupoint; T4 - application of 39.75μg of cloprostenol and 90 UI of eCG, both in Bai Hui and T5 acupuncture: application of 39.75μg of cloprostenol and 90 UI of eCG, both applied in false acupoint. The goats were subjected to an estrus synchronization protocol and monitored for estrus detection, coverage and evaluation of reproductive parameters to detect entry into estrus. The data were subjected to normality tests, followed by appropriate statistical analyses of each variable. There was no significant difference (P > 0.05) in the percentage of animals in estrus (95.00 ± 11.18%), interval between sponge removal and beginning of estrus (49.72 ± 8.93 h), interval between sponge removal and end of estrus (76.84 ± 11.98 h), duration of estrus (27.08 ± 8.68 h), size of the largest follicle (6.82 ± 0.44 mm), interval between sponge removal and ovulation (78.28 ± 10.82 h), time from ovarian onset to estrus (28.52 ± 5.44 h), follicular growth rate (0.86 ± 0.29 mm/day), number of ovulations (1.32 ± 0.23), plasma progesterone concentration at 7 days after ovulation (10.28 ± 1.65 ng.mL-1), and gestation rate at 30 days after the beginning of estrus (75 ± 12.5%). However, the cost of the synchronization protocol per animal was 43.42% lower in treatments 4 and 5 (30% of the doses) than in treatment 1 (100% of the dose)...


O objetivo com o estudo foi avaliar a utilização de subdoses hormonais aplicadas no acuponto Bai Hui em protocolos de sincronização de estro em cabras. Foram utilizadas 40 cabras, as quais receberam esponjas intravaginais com acetato de medroxiprogesterona durante 7 dias, quando foram distribuídas aleatoriamente em 5 tratamentos: T1: aplicação de 132,5μg de cloprostenol e 300UI de eCG, ambos por via intramuscular (IM); T2: aplicação de 39,75μg de cloprostenol no acuponto Bai Hui e 300UI de eCG IM; T3: aplicação de 132,5μg de cloprostenol IM e 90UI de eCG no acuponto Bai Hui; T4: aplicação de 39,75μg de cloprostenol e 90UI de eCG, ambos no acuponto Bai Hui e T5: aplicação de 39,75μg de cloprostenol e 90UI de eCG, ambos aplicados em falso acuponto. As cabras foram submetidas à protocolo de sincronização de estro e monitoradas para detecção de estro, realização das coberturas e avaliação dos parâmetros reprodutivos. Os dados foram submetidos à análise de normalidade, seguido dos testes estatísticos adequados para cada variável. Não obteve-se diferença (p > 0,05) para porcentagem de animais em estro (95,00 ± 11,18%), intervalo da retirada da esponja ao início do estro (49,72 ± 8,93h), intervalo da retirada da esponja ao final do estro (76,84 ± 11,98h), duração do estro (27,08 ± 8,68h), tamanho do maior folículo (6,82 ± 0,44mm), intervalo da retirada da esponja à ovulação (78,28 ± 10,82h), intervalo do início do estro à ovulação (28,52 ± 5,44h), taxa de crescimento folicular (0,86 ± 0,29mm/dia), número de ovulações (1,32 ± 0,23), concentração de progesterona plasmática aos 7 dias após ovulação (10,28 ± 1,65ng.mL-1) e para taxa de gestação aos 30 dias (75 ± 12,5%). Porém, o custo do protocolo de sincronização por animal foi 43,42% menor para os tratamentos T4 e T5 (30% da dose) comparado com o T1 (100% da dose)...


Assuntos
Feminino , Animais , Cabras/embriologia , Cruzamento/métodos , Sincronização do Estro/métodos , Terapia por Acupuntura/métodos , Terapia por Acupuntura/veterinária , Técnicas Reprodutivas/veterinária
14.
Vet. Zoot. ; 25(1): 85-88, mar. 2018.
Artigo em Inglês | VETINDEX | ID: vti-19659

Resumo

La ruptura del tendón pre-púbico es una afección frecuente en yeguas, rara en ovejas y vacas debido a una conexión adicional del tendón prepúbico encontrado en estas especies. La etiología de esta afección no ha sido completamente elucidada, aunque está asociada con muchas afecciones de la gestación. El tratamiento es usualmente insatisfactorio. Este reporte tiene como objetivo describir los hallazgos clínicos y anatomopatológicos en una oveja en el quinto mes de gestación con ruptura del tendón pre púbico. El mal estado clínico conllevó a la eutanasia. Los hallazgos clínicos y anatomopatológicos son consistentes con la ruptura del tendón prepúbico. El reporte de este caso funciona como alerta ante la posibilidad de la ocurrencia de esta afección en ovejas y demuestra la necesidad de la asistencia al parto de estos animales.(AU)


Pre-pubic tendon rupture is an often affection in mares, rarer in ewes and cows because of an additional connection of the pre-pubic tendon found in these species. Etiology of this affection is not completed elucidated, but it is associated with many gestation affections. Treatment is usually unsatisfactory. This report aims to describe principle clinical and anatomopathologyc findings in an ewe at the fifth month of gestation with pre-pubic tendon rupture. Bad general clinical status led to euthanasia. Clinical and anatomopathological findings are consistent with pre-pubic tendon rupture. The report of this case works as an alert to the possibility of the occurrence of this affection in ewes and demonstrate a necessity to the parturition assistance of these animals.(AU)


A ruptura do tendão pré-púbico é uma afecção frequente em éguas, rara em ovelhas e vacas devido a ligação adicional do tendão pré-púbico encontrado nestas espécies. A etiologia desta afecção não está elucidada, mas está associada a muitas aspectos da gestação. O tratamento é geralmente insatisfatório. O objetivo desta nota é descrever os principais achados clínicos e anatomopatológicos de uma ovelha no quinto mês de gestação com ruptura do tendão pré-púbico. O mau estado clínico geral levou à eutanásia. Os achados clínicos e anatomopatológicos são consistentes com a ruptura do tendão pré-púbico. Esta nota funciona como alerta para a possibilidade da ocorrência desta patologia em ovelhas e demonstrar uma necessidade de assistência para o parto desses animais.(AU)


Assuntos
Animais , Feminino , Traumatismos dos Tendões/veterinária , Distocia/veterinária , Ovinos/lesões , Traumatismos dos Tendões/fisiopatologia , Prenhez , Eutanásia Animal
15.
Vet. zootec ; 25(1): 85-88, mar. 2018.
Artigo em Inglês | VETINDEX | ID: biblio-1503505

Resumo

La ruptura del tendón pre-púbico es una afección frecuente en yeguas, rara en ovejas y vacas debido a una conexión adicional del tendón prepúbico encontrado en estas especies. La etiología de esta afección no ha sido completamente elucidada, aunque está asociada con muchas afecciones de la gestación. El tratamiento es usualmente insatisfactorio. Este reporte tiene como objetivo describir los hallazgos clínicos y anatomopatológicos en una oveja en el quinto mes de gestación con ruptura del tendón pre púbico. El mal estado clínico conllevó a la eutanasia. Los hallazgos clínicos y anatomopatológicos son consistentes con la ruptura del tendón prepúbico. El reporte de este caso funciona como alerta ante la posibilidad de la ocurrencia de esta afección en ovejas y demuestra la necesidad de la asistencia al parto de estos animales.


Pre-pubic tendon rupture is an often affection in mares, rarer in ewes and cows because of an additional connection of the pre-pubic tendon found in these species. Etiology of this affection is not completed elucidated, but it is associated with many gestation affections. Treatment is usually unsatisfactory. This report aims to describe principle clinical and anatomopathologyc findings in an ewe at the fifth month of gestation with pre-pubic tendon rupture. Bad general clinical status led to euthanasia. Clinical and anatomopathological findings are consistent with pre-pubic tendon rupture. The report of this case works as an alert to the possibility of the occurrence of this affection in ewes and demonstrate a necessity to the parturition assistance of these animals.


A ruptura do tendão pré-púbico é uma afecção frequente em éguas, rara em ovelhas e vacas devido a ligação adicional do tendão pré-púbico encontrado nestas espécies. A etiologia desta afecção não está elucidada, mas está associada a muitas aspectos da gestação. O tratamento é geralmente insatisfatório. O objetivo desta nota é descrever os principais achados clínicos e anatomopatológicos de uma ovelha no quinto mês de gestação com ruptura do tendão pré-púbico. O mau estado clínico geral levou à eutanásia. Os achados clínicos e anatomopatológicos são consistentes com a ruptura do tendão pré-púbico. Esta nota funciona como alerta para a possibilidade da ocorrência desta patologia em ovelhas e demonstrar uma necessidade de assistência para o parto desses animais.


Assuntos
Feminino , Animais , Distocia/veterinária , Ovinos/lesões , Traumatismos dos Tendões/fisiopatologia , Traumatismos dos Tendões/veterinária , Eutanásia Animal , Prenhez
16.
R. bras. Saúde Prod. Anim. ; 19(4): 360-370, 2018. tab, graf
Artigo em Inglês | VETINDEX | ID: vti-19794

Resumo

The objective of this study was to verify the accuracy of sexing and fetal number estimation in small ruminants by ultrasonographic examination. Fifty fetuses from 36 sheep and 23 fetuses from 11 goats were evaluated. In the case of sheep, twenty-four, ten, and two pregnancy were single, double, and triple, respectively. Regarding the goats, three, five, two, and one simple pregnancy were single, double, triple, and quadruple, respectively. The evaluations were performed on days 55 and 65 of gestation, by means of transrectal ultrasonographic examination, using a dual-frequency linear transducer, (6.0 and 8.0 MHz). Fetal sex was diagnosed by the location of the genital tubercle or visualization of external genitalia. The accuracy of fetal sexing was evaluated using the Chi-square test (X2) considering a 5% significance level. The gestational period interfered in the accuracy of fetal sexing in both species (P 0.05). Obtained results showed 30% and 82.61% accuracy on day 55 of gestation, and 90% and 95.83% on day 65 for goats and sheep, respectively. The fetal sex and the type of pregnancy did not interfere in the sexing accuracy in both species during the evaluated periods (P> 0.05). Thus, B-mode ultrasonography is an efficient method to perform an early diagnosis of fetal sex and to determine the number of fetuses in the studied small ruminants on day 65 of gestation. In addition, the accuracy of fetal sexing is not influenced by the type of pregnancy or fetal sex.(AU)


O objetivo com este estudo foi verificar a acurácia da sexagem e da estimativa do número fetal em pequenos ruminantes por meio de exame ultrassonográfico. Foram avaliados 50 fetos de 36 ovelhas e 23 fetos de 11 cabras. No caso das ovelhas, 24, 10 e duas gestações foram simples, duplas e triplas, respectivamente. Enquanto nas cabras, três, cinco, duas e uma gestação foram simples, duplas, triplas e quádrupla, respectivamente. As avaliações foram realizadas aos 55 e 65 dias de gestação, por meio de exame ultrassonográfico transretal, utilizando-se um transdutor linear de dupla frequência (6,0 e 8,0 MHz). O sexo fetal foi diagnosticado pela localização do tubérculo genital ou visibilização da genitália externa. A acurácia da sexagem fetal foi avaliada por meio do teste Qui-quadrado (X2) considerando 5% de significância. O período gestacional interferiu (P 0,05) na acurácia da sexagem fetal. Obteve-se 30% e 82,61% de acurácia aos 55 dias de gestação, e 90% e 95,83% aos 65 dias, para cabras e ovelhas, respectivamente. O sexo fetal e o tipo de gestação não interferiram (P>0,05) na acurácia da sexagem em ambas as espécies nos períodos avaliados. Desta forma, a ultrassonografia em modo-B é um método eficiente para realização de diagnóstico precoce do sexo fetal e para determinação do número de fetos nos pequenos ruminantes no 65° dia da gestação, além disso, a acurácia da sexagem fetal não é influenciada pelo tipo de gestação, nem pelo sexo fetal.(AU)


Assuntos
Animais , Ruminantes/genética , Tuberculose dos Genitais Masculinos/diagnóstico , Tuberculose dos Genitais Masculinos/genética , Ovinos
17.
Rev. bras. saúde prod. anim ; 19(4): 360-370, 2018. tab, graf
Artigo em Inglês | VETINDEX | ID: biblio-1493791

Resumo

The objective of this study was to verify the accuracy of sexing and fetal number estimation in small ruminants by ultrasonographic examination. Fifty fetuses from 36 sheep and 23 fetuses from 11 goats were evaluated. In the case of sheep, twenty-four, ten, and two pregnancy were single, double, and triple, respectively. Regarding the goats, three, five, two, and one simple pregnancy were single, double, triple, and quadruple, respectively. The evaluations were performed on days 55 and 65 of gestation, by means of transrectal ultrasonographic examination, using a dual-frequency linear transducer, (6.0 and 8.0 MHz). Fetal sex was diagnosed by the location of the genital tubercle or visualization of external genitalia. The accuracy of fetal sexing was evaluated using the Chi-square test (X2) considering a 5% significance level. The gestational period interfered in the accuracy of fetal sexing in both species (P 0.05). Obtained results showed 30% and 82.61% accuracy on day 55 of gestation, and 90% and 95.83% on day 65 for goats and sheep, respectively. The fetal sex and the type of pregnancy did not interfere in the sexing accuracy in both species during the evaluated periods (P> 0.05). Thus, B-mode ultrasonography is an efficient method to perform an early diagnosis of fetal sex and to determine the number of fetuses in the studied small ruminants on day 65 of gestation. In addition, the accuracy of fetal sexing is not influenced by the type of pregnancy or fetal sex.


O objetivo com este estudo foi verificar a acurácia da sexagem e da estimativa do número fetal em pequenos ruminantes por meio de exame ultrassonográfico. Foram avaliados 50 fetos de 36 ovelhas e 23 fetos de 11 cabras. No caso das ovelhas, 24, 10 e duas gestações foram simples, duplas e triplas, respectivamente. Enquanto nas cabras, três, cinco, duas e uma gestação foram simples, duplas, triplas e quádrupla, respectivamente. As avaliações foram realizadas aos 55 e 65 dias de gestação, por meio de exame ultrassonográfico transretal, utilizando-se um transdutor linear de dupla frequência (6,0 e 8,0 MHz). O sexo fetal foi diagnosticado pela localização do tubérculo genital ou visibilização da genitália externa. A acurácia da sexagem fetal foi avaliada por meio do teste Qui-quadrado (X2) considerando 5% de significância. O período gestacional interferiu (P 0,05) na acurácia da sexagem fetal. Obteve-se 30% e 82,61% de acurácia aos 55 dias de gestação, e 90% e 95,83% aos 65 dias, para cabras e ovelhas, respectivamente. O sexo fetal e o tipo de gestação não interferiram (P>0,05) na acurácia da sexagem em ambas as espécies nos períodos avaliados. Desta forma, a ultrassonografia em modo-B é um método eficiente para realização de diagnóstico precoce do sexo fetal e para determinação do número de fetos nos pequenos ruminantes no 65° dia da gestação, além disso, a acurácia da sexagem fetal não é influenciada pelo tipo de gestação, nem pelo sexo fetal.


Assuntos
Animais , Ovinos , Ruminantes/genética , Tuberculose dos Genitais Masculinos/diagnóstico , Tuberculose dos Genitais Masculinos/genética
18.
Acta sci. vet. (Impr.) ; 45(suppl.1): Pub.238-2017. ilus
Artigo em Português | VETINDEX | ID: biblio-1457783

Resumo

Background: The presence of macroscopic concretions in the urinary system is called urolithiasis. In horses the occurrence is rare. The calculi are generally large and unique spicule concretions, composed of calcium carbonate crystals. Less commonly, the concretions are of mixed crystals of calcium carbonate and of calcium phosphate. The aim of the this work was to report a case of obstructive urethrolithiasis in a horse.Case: A 1-year-and-5-month-old, undefined breed, uncastrated male presented tenesmus, strangury, and dysuria. The horse died seven days after the onset of clinical signs and was referred for necropsy. At necropsy, samples were collected from organs of the abdominal cavity, thoracic cavity, central nervous system and integumentary system. The fragments were fixed in 10% formaldehyde, cleaved, routinely processed for histology and stained with hematoxylin and eosin. A urinary calculus collected during necropsy was sent for chemical analysis. In the abdominal cavity, a large quantity of citrus liquid of uremic odor was observed. Deposition of fibrin filaments in the peritoneum was observed, as well as in diaphragm and abdominal organs. Serosa of the small and large intestine was red with evidence of the capillaries. Kidneys presented multiple slightly protrusive white areas with a maximum diameter of 3 mm. When cutting, these areas were limited to the cortical region. There was rupture of the urinary bladder, diffuse loss of the mucosa with capillary exposure and evidence, as well as the deposition of fibrin and crude blood clots. The opening of the penile urethra presented a urolith of approximately 3.5 x 3 cm in size, with a rough and porous surface, light brown and of a stony consistency. Necrosis of the mucosa and hemorrhage were also observed in the urethra....


Assuntos
Animais , Cavalos , Doenças Urológicas , Estruvita , Obstrução Uretral/veterinária
19.
Acta sci. vet. (Online) ; 45(suppl.1): Pub. 238, 2017. ilus
Artigo em Português | VETINDEX | ID: vti-20095

Resumo

Background: The presence of macroscopic concretions in the urinary system is called urolithiasis. In horses the occurrence is rare. The calculi are generally large and unique spicule concretions, composed of calcium carbonate crystals. Less commonly, the concretions are of mixed crystals of calcium carbonate and of calcium phosphate. The aim of the this work was to report a case of obstructive urethrolithiasis in a horse.Case: A 1-year-and-5-month-old, undefined breed, uncastrated male presented tenesmus, strangury, and dysuria. The horse died seven days after the onset of clinical signs and was referred for necropsy. At necropsy, samples were collected from organs of the abdominal cavity, thoracic cavity, central nervous system and integumentary system. The fragments were fixed in 10% formaldehyde, cleaved, routinely processed for histology and stained with hematoxylin and eosin. A urinary calculus collected during necropsy was sent for chemical analysis. In the abdominal cavity, a large quantity of citrus liquid of uremic odor was observed. Deposition of fibrin filaments in the peritoneum was observed, as well as in diaphragm and abdominal organs. Serosa of the small and large intestine was red with evidence of the capillaries. Kidneys presented multiple slightly protrusive white areas with a maximum diameter of 3 mm. When cutting, these areas were limited to the cortical region. There was rupture of the urinary bladder, diffuse loss of the mucosa with capillary exposure and evidence, as well as the deposition of fibrin and crude blood clots. The opening of the penile urethra presented a urolith of approximately 3.5 x 3 cm in size, with a rough and porous surface, light brown and of a stony consistency. Necrosis of the mucosa and hemorrhage were also observed in the urethra....(AU)


Assuntos
Animais , Cavalos , Doenças Urológicas , Estruvita , Obstrução Uretral/veterinária
20.
Ciênc. anim. bras. (Impr.) ; 16(1): 125-132, Jan-Mar. 2015. tab
Artigo em Português | VETINDEX | ID: biblio-1473369

Resumo

The objective of this study was to evaluate the efficiency of continuous density gradients of Percoll and OptiPrep for separation of X-bearing sperm, and assess the influence on sperm viability, pregnancy rate and sex ratio. With this purpose 100 million spermatozoa were deposited into each tube containing density gradient, which were previously prepared in polystyrene tubes, 24 hours before centrifugation and stored at 4 C. The tubes were centrifuged at 500xg for 15 minutes at 22 C, and then the supernatants aspirated and sperm recovered from the bottom of the tubes. A sample was evaluated before and after centrifugation to verify motility and sperm vigor. The sperm were used for fixed time artificial insemination. The results indicated that centrifugation did not affect sperm viability and pregnancy rate, however there was no deviation of sex ratio for females. More studies are needed of adapting the centrifugation technique to sheep and thus obtain the deviation of sex ration as in bovine.


Este trabalho teve como objetivo avaliar a eficiência de gradientes de densidade contínuos de Percoll e OptiPrep para a separação de espermatozoides portadores do cromossomo X, e avaliar a influência sobre a viabilidade espermática, taxa de prenhez e proporção do sexo. Para isso, 100 milhões de espermatozoides foram depositados em cada tubo contendo o gradiente de densidade, previamente preparados, em tubos de poliestireno, 24 horas antes da centrifugação e mantidos a 4 C. Centrifugou-se a 500 x g por 15 minutos a 22 C e, posteriormente, os sobrenadantes foram aspirados e os espermatozoides recuperados no fundo dos tubos. Uma amostra foi avaliada antes a após a centrifugação para verificação da motilidade e vigor espermático. Os espermatozoides foram utilizados para a inseminação artificial em tempo fixo. Os resultados indicaram que a centrifugação não afetou a viabilidade espermática e a taxa de prenhez, entretanto não houve desvio da proporção do sexo para fêmeas. Mais estudos são necessários para determinar a necessidade de adaptação da técnica de centrifugação para a espécie ovina e assim obter o desvio da proporção do sexo como na espécie bovina.


Assuntos
Animais , Centrifugação/métodos , Espermatozoides/fisiologia , Ovinos/embriologia , Prenhez , Sêmen , Análise do Sêmen
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