Testicular biometry and hierarchy of dominance of the white-lipped peccary (Mammalia, Tayassuidae) / Biometria testicular e hierarquia de dominância do queixada (Mammalia, Tayassuidae)

The objective of this study was to obtain data on the testicular biometry of the white-lipped peccary (Tayassu pecari) and to verify if there is a correlation between the individual's biometric data with their dominance rank. Data were collected from 16 adult males, aged between two and seven years, who made up the same group. By the agonistic interactions analyses we calculated the linearity indexes (h') of the dominance hierarchy and dominance rank. At the end of the behavioral observations, males were captured to collect biometric data from the testis. White-lipped peccaries showed testicles located in a perineal position, inclined cranio-ventrally with oval shape, flattened laterally and with tenso-elastic consistency (2.54±0.07). There was variance in the means (± standard deviation) of testis length (5.88±1.05cm), width (4.24 ± 0.98cm), height (4.44±0.86cm), and total scrotal width (8.78±17.05). The linear dominance hierarchy described the social structure of the males of this group (h'>0.9), with probability of linearity in the hierarchy greater than chance (P = 0.02). There was a correlation between dominance rank with the body mass, length and volume of the testicles. As in general the dimensions of the testicles are directly correlated with sperm production and also testosterone, this characteristic favors the reproductive performance of dominant white-lips males. Therefore, the characteristics of testicular biometry of white-lips should be considered for the selection of individuals more likely to reproduce in captivity favoring the conservation of this vulnerable species.(AU)

O objetivo neste estudo foi obter dados sobre a biometria testicular do queixada (Tayassu pecari) e verificar se há correlação entre os dados biométricos do indivíduo com seu posto de dominância. Os dados foram coletados de 16 queixadas adultos, com idades entre dois e sete anos, que compunham o mesmo grupo. Por meio de análises das interações agonísticas foram calculados os índices de linearidade (h') da hierarquia de dominância e determinado o rank dos indivíduos. Ao final das observações comportamentais, os machos foram capturados para coleta de dados biométricos do testículo. Os queixadas apresentaram testículos localizados em posição perineal, inclinados cranioventralmente com formato oval, achatados láterolateralmente e com consistência tensoelástica (2,54±0,07). Houve variação nas médias (± desvio padrão) do comprimento testicular (5,88±1,05cm), largura (4,24±0,98cm), altura (4,44±0,86cm) e largura escrotal total (8,78±17,05). A hierarquia de dominância linear descreveu a estrutura social dos machos desse grupo (h'>0,9), com probabilidade de linearidade na hierarquia maior que o acaso (P = 0,02). Houve correlação entre a classificação de dominância com a massa corporal, comprimento e volume dos testículos. Como em geral as dimensões dos testículos estão diretamente correlacionadas com a produção de esperma e também de testosterona, essa característica favorece o desempenho reprodutivo de machos de queixadas brancos dominantes. Portanto, as características da biometria testicular de queixadas devem ser consideradas para a seleção de indivíduos com maior probabilidade de reprodução em cativeiro favorecendo a conservação desta espécie vulnerável.(AU)

Survey of avifauna housed in the wild animal triage centers in the state of Bahia, period 2009 to 2019, emphasizing trafficking / Levantamento de avifauna alojada nos Centros de Triagem de Animais Silvestres no estado da Bahia, período 2009 a 2019, com ênfase no tráfico

Brazil is one of the primary suppliers of wildlife for trafficking, which constitutes a significant threat to biodiversity, which can cause the extinction of species, especially birds, the most important victims of trafficking. This study analyzed the wild avifauna collected in the Triage Centers of Wild Animals (CETAS) of Bahia, to inventory the most apprehended species that are threatened with extinction, and estimate the municipalities that function as suppliers and traders of wildlife. Data from 2009 to 2019 were made available by the Salvador and Vitoria da Conquista units, and that from 2010 to 2016 was made available by the, Porto Seguro unit. The survey was conducted through the entry records of birds, considering apprehension, spontaneous deliveries, rescues, and transfers between units involved in the study. Out of the total 80,948 birds analyzed, 65,315 (80.68%) were apprehended; 7,885 (9.74%) were voluntary deliveries; 6,196 (7.65%) were rescues, and 1,034 (1.28%) were transfers. There was no entry modality for 518 (0.64%) specimens. The most trafficked species were Sicalis flaveola (Saffron Finch), Sporophila nigricollis (Yellow-bellied Seedeater), Paroaria dominicana (Red-cowlead Cardinal), Cyanoloxia brissonii (Ultramarine Grosbeak), Sporophila caerulescens (Double-collared Seedeater), and Sporophila albogularis (White-throated Seedeater). Nine hundred twenty six specimens exhibited some threat. Analysis showed that the greatest flow of bird traffic occurs on BR 242 and BR 116. The municipalities that comprise the mesoregions Center-South, Center-North Baiano, and the Metropolitan Region of Salvador are those with greater concentrations of illegal activity. Irecê and Paulo Afonso constitute areas for the capture and commercialization of wild animals.

O Brasil é um dos principais fornecedores de vida silvestre para o tráfico. Essa prática configura ameaça à biodiversidade brasileira, provoca extinção de espécies, sobretudo da avifauna, as principais vítimas do tráfico. O estudo objetivou analisar a avifauna silvestre recolhida nos Centros de Triagem de Animais Silvestres (CETAS) do estado da Bahia, buscando quantificar as espécies mais apreendidas, ameaçadas de extinção e estimar os municípios que atuam como possíveis fornecedores e comercializadores de vida silvestre. Os dados disponibilizados pelas unidades de Salvador e Vitória da Conquista compreenderam o período de 2009 a 2019 e unidade de Porto Seguro, o período de 2010 a 2016. O levantamento foi realizado através dos registros de entrada de aves, considerando apreensões, entregas espontâneas, resgates e transferências entre unidades envolvidas no estudo. Foram recebidas 80.948 aves, sendo procedentes de apreensões 65.315 (80,68%); entregas voluntárias 7.885 (9,74%); resgates 6.196 (7,65%) e transferências 1.034 (1,28%). Não houve registro de modalidade de entrada para 518 (0,64%) espécimes. As espécies mais traficadas foram Sicalis flaveola (Canário-da-terra), Sporophila nigricollis (Papa-capim), Paroaria dominicana (Cardeal-do-nordeste), Cyanoloxia brissonii (Azulão), Sporophila caerulescens (Coleirinho) e Sporophila albogularis (Golinho). Identificou-se 926 espécimes com algum tipo de ameaça. A análise demonstrou que o maior fluxo de tráfico de aves ocorre nas BR 242 e BR 116. Os municípios que compõem as mesorregiões Centro-Sul, Centro Norte Baiano e a Região Metropolitana de Salvador são os que possuem maiores fluxos de atuação no comércio ilegal. Irecê e Paulo Afonso são áreas de captura e comercialização intensa de animais silvestres.

Tubulopapillary carcinoma of the mammary gland in a mare

Background: Mammary gland neoplasia are often observed in bitches and cats, rarely in cows, goats, sheep, sows, andmares. Among the neoplasia that affect mares, breast tumors are rare, as they occur more frequently in older animals. Inhorses, mammary gland tumors occur more frequently in older animals. In this species there are reports of cases describingcarcinomas and adenocarcinomas and several subtypes. Mammary neoplasms in equines tend to be locally aggressive andpromote metastases to the regional lymph nodes and other organs, including the lungs, and may cause pleural effusion.The aim objective of the present case report was to describe the clinical-pathological and immunohistochemical findingsof a tubulopapillary carcinoma of the mammary gland in mare.Case: Was received a biopsy of a tumor mass of the mammary gland of a 15-year-old Quarter Horse mare. According tothe veterinarian, the mare presented an increase in volume with ulceration of the mammary gland three months before thebiopsy. Macroscopically, the mass was firm to the cut with white surface measuring 12x12 cm. The fragment was fixedin 10% formalin, routinely processed for histology, paraffin embedded, and stained with hematoxylin and eosin. Microscopically, we observed proliferation of epithelial neoplastic cells arranged in tubules and papillary projections, somewith two to three layers of cells. Neoplastic cells had oval, moderate and distinct cytoplasm. The nuclei were roundedwith dense chromatin and an apparent nucleolus. There were two figures of mitosis per field of high magnification. Proliferation of neoplastic cells invaded adjacent tissues, and in lymph vessels of the region, neoplastic cells were observedas well as inflammation in adjacent tissue. In addition, the breast fragment was submitted to the immunohistochemistrytechnique using anti-pancytokeratin and anti-vimentin antibody. In immunohistochemistry for pancytokeratin, there wasimmunoreactivity...

Tubulopapillary carcinoma of the mammary gland in a mare

Background: Mammary gland neoplasia are often observed in bitches and cats, rarely in cows, goats, sheep, sows, andmares. Among the neoplasia that affect mares, breast tumors are rare, as they occur more frequently in older animals. Inhorses, mammary gland tumors occur more frequently in older animals. In this species there are reports of cases describingcarcinomas and adenocarcinomas and several subtypes. Mammary neoplasms in equines tend to be locally aggressive andpromote metastases to the regional lymph nodes and other organs, including the lungs, and may cause pleural effusion.The aim objective of the present case report was to describe the clinical-pathological and immunohistochemical findingsof a tubulopapillary carcinoma of the mammary gland in mare.Case: Was received a biopsy of a tumor mass of the mammary gland of a 15-year-old Quarter Horse mare. According tothe veterinarian, the mare presented an increase in volume with ulceration of the mammary gland three months before thebiopsy. Macroscopically, the mass was firm to the cut with white surface measuring 12x12 cm. The fragment was fixedin 10% formalin, routinely processed for histology, paraffin embedded, and stained with hematoxylin and eosin. Microscopically, we observed proliferation of epithelial neoplastic cells arranged in tubules and papillary projections, somewith two to three layers of cells. Neoplastic cells had oval, moderate and distinct cytoplasm. The nuclei were roundedwith dense chromatin and an apparent nucleolus. There were two figures of mitosis per field of high magnification. Proliferation of neoplastic cells invaded adjacent tissues, and in lymph vessels of the region, neoplastic cells were observedas well as inflammation in adjacent tissue. In addition, the breast fragment was submitted to the immunohistochemistrytechnique using anti-pancytokeratin and anti-vimentin antibody. In immunohistochemistry for pancytokeratin, there wasimmunoreactivity...(AU)

Dicephalia in a bovine / Dicefalia em bovino

Background: Congenital defects consist of structural or functional abnormalities present at birth, which partially or globally affect the systems. Among the defects are the conjoined twins, a rare congenital anomaly caused by fusion of two monozygotic embryos which can be classified according to the different sites of union. The Siamese twins and embryonic duplication are represented by a progressive series of malformations, since partial duplication of part of the body to the training almost full two bodies. Siamese twins occur in humans and in several animal species. Dicephalia refers to two totally separate heads. The aim of this study was to report a case of dicephalia in a bovine fetus. Case: A crossbred bovine fetus from a cow pregnant at. The animal was fixed by immersion in 10% formalin for sample collection. Muscles were dissected, with exposure of the bones of the right head, neck, forelimb, and hind limb. After dissection, the fetus was subjected to a preservation process by impregnation with glycerin. Next, internal organs were removed in bloc (from tongue to rectum) for evaluation of internal alterations. Additionally, radiographs of the spinal cord were performed to diagnose alterations by diagnostic imaging. Radiography revealed the presence of two skulls; two cervical spines, both with seven vertebrae; two thoracic spines, both with 13 vertebrae; and two lumbar [...]

Dicephalia in a bovine / Dicefalia em bovino

Background: Congenital defects consist of structural or functional abnormalities present at birth, which partially or globally affect the systems. Among the defects are the conjoined twins, a rare congenital anomaly caused by fusion of two monozygotic embryos which can be classified according to the different sites of union. The Siamese twins and embryonic duplication are represented by a progressive series of malformations, since partial duplication of part of the body to the training almost full two bodies. Siamese twins occur in humans and in several animal species. Dicephalia refers to two totally separate heads. The aim of this study was to report a case of dicephalia in a bovine fetus. Case: A crossbred bovine fetus from a cow pregnant at. The animal was fixed by immersion in 10% formalin for sample collection. Muscles were dissected, with exposure of the bones of the right head, neck, forelimb, and hind limb. After dissection, the fetus was subjected to a preservation process by impregnation with glycerin. Next, internal organs were removed in bloc (from tongue to rectum) for evaluation of internal alterations. Additionally, radiographs of the spinal cord were performed to diagnose alterations by diagnostic imaging. Radiography revealed the presence of two skulls; two cervical spines, both with seven vertebrae; two thoracic spines, both with 13 vertebrae; and two lumbar [...](AU)

Obliterative vasculitis caused by ovine herpesvirus type 2 in cattle

Background: Malignant catarrhal fever (MCF) is a frequently fatal viral infection that affects various wild and domestic ruminants and even pigs, as recently reported. It is a disease characterized by lymphoproliferation, vasculitis and erosiveulcerative lesions in mucosa and skin. In Brazil, the virus that circulates and causes the disease has been identified as OvHV-2. The aim of this study is to describe the clinicopathological changes in a cow with obliterative vasculitis caused by OvHV-2. Case: A two-year-old Gir cow with a history of intermittent diarrhea and progressive weight loss for approximately a year, which had not improved with antibiotic therapy, was euthanized and subjected to necropsy. In the necropsy, the liver was enlarged, firm, and had a marbled aspect all over the capsular and cut surfaces (light striations intercalated with dark areas). Cut surfaces also revealed thickening of the vessel walls, which exhibited a branched pattern. There was marked thickening of the small and large intestinal walls. The hepatic, mediastinal and mesenteric lymph nodes were enlarged. The samples were fixed in 10% phosphate-buffered formalin, routinely processed for histology, embedded in paraffin, cut 5-µm sections, and stained with hematoxylin and eosin. Additionally, sections of the liver and ileum were subjected to Masson's trichrome staining. The main microscopic alterations were found in the vessels (arteries and veins) of the liver and intestine. Periportal fibrosis and marked pericholangitis which would sometimes form bridges were observed in the liver. Transmural and perivascular fibrosis; the muscular layer was ruptured and there was proliferation of the intima, which caused obliteration of the lumen were also present. The lymph nodes' medullae exhibited intense infiltration of macrophages and plasma cells with areas of fibrosis, capillary proliferation, and atrophy of medullary cords. Neovascularization and marked inflammatory infiltrates composed of lymphocytes, plasma cells, macrophages and eosinophils were also present. Masson's trichrome staining revealed areas of fibroplasia. The tissue samples of the carotid rete mirabile, brain and liver were submitted for identification of OvHV-2 by nested polymerase chain reaction (nPCR) tested was positive for ovine herpesvirus type 2. Discussion: The main histological findings (obliterative vasculitis observed in the small and large intestines, liver, and lymph nodes) plus the detection of viral DNA of OvHV-2 in fragments of the carotid rete mirabile, brain, and liver by nPCR confirmed the diagnosis of malignant catarrhal fever. Chronic cases of MCF in cattle are not often described. The disease is usually manifested in a hyperacute or acute form which culminates with death. The most frequent clinical presentation is the head and eye form, which is characterized by corneal opacity, and ocular, nasal, and oral serous discharge. Bovines with MCF usually exhibit macroscopic and microscopic changes in various organs due to the pansystemic characteristic of the virus, which causes vasculopathy and lymphadenopathy. In this report, the changes were restricted to the intestines, liver, and lymph nodes. The obliterative vasculitis seen in this case is similar to the changes described in cases of chronic. Other herpesviruses which cause lesions to the vascular wall can also cause hyperplasia of the muscular layer with progression to obliterative arteriopathy. This paper reports a presentation of MCR not previously described in Brazil. PCR was an important tool for the conclusion of this case.