The goal of this study was to describe the anatomy of the femoral artery in wild canids such as the crab-eating fox (Cerdocyon thous), the hoary fox (Lycalopex vetulus), and the maned wolf (Chrysocyon brachyurus). Two specimens from each canid group were used. Red dyed latex was injected in the arterial system of the animals, which were then fixed in 10% formaldehyde aqueous solution and dissected following the routine techniques in macroscopic anatomy. In the three canid groups, the arterial pattern was similar to that described for domestic canids, in which the deep femoral artery rises from the external iliac artery, still in the abdominal cavity, and sends its first branch, the lateral circumflex femoral artery. A few muscular branches, one or two caudal femoral arteries, and the terminal branches – the descending genicular artery, the saphenous artery, and the popliteal artery – are all originated from the femoral artery. The origin pattern of these vessels also shows similarities with those from domestic canids, sometimes forming trunks and occasionally rising individually. Thus, it can be concluded that the anatomical pattern of the femoral artery and its branches in wild canids shows similarities with that from domestic canids, but inherent variations in each species are also present.

O objetivo deste estudo foi descrever a anatomia da artéria femoral em canídeos selvagens, como o cachorro do mato (Cerdocyon thous), a raposa do campo (Lycalopex vetulus) e o lobo-guará (Chrysocyon brachyurus). Foram utilizados dois espécimes de cada grupo canídeo. Solução de látex vermelha foi injetada no sistema arterial dos animais, que foram então fixados em solução aquosa de formaldeído a 10% e dissecados seguindo as técnicas rotineiras da anatomia macroscópica. Nos três grupos canídeos, o padrão arterial foi semelhante ao descrito para canídeos domésticos, em que a artéria femoral profunda origina da artéria ilíaca externa, ainda na cavidade abdominal, e envia seu primeiro ramo, a artéria femoral circunflexa lateral. Alguns ramos musculares, uma ou duas artérias femorais caudais e os ramos terminais - a artéria genicular descendente, a artéria safena e a artéria poplítea - são originários da artéria femoral. O padrão de origem desses vasos também mostra semelhanças com as de canídeos domésticos, às vezes formando troncos e ocasionalmente originando individualmente. Assim, pode-se concluir que o padrão anatômico da artéria femoral e seus ramos em canídeos selvagens mostra semelhanças com a dos canídeos domésticos, mas variações inerentes em cada espécie também estão presentes. | The goal of this study was to describe the anatomy of the femoral artery in wild canids such as the crab-eating fox (Cerdocyon thous), the hoary fox (Lycalopex vetulus), and the maned wolf (Chrysocyon brachyurus). Two specimens from each canid group were used. Red dyed latex was injected in the arterial system of the animals, which were then fixed in 10% formaldehyde aqueous solution and dissected following the routine techniques in macroscopic anatomy. In the three canid groups, the arterial pattern was similar to that described for domestic canids, in which the deep femoral artery rises from the external iliac artery, still in the abdominal cavity, and sends its first branch, the lateral circumflex femoral artery. A few muscular branches, one or two caudal femoral arteries, and the terminal branches – the descending genicular artery, the saphenous artery, and the popliteal artery – are all originated from the femoral artery. The origin pattern of these vessels also shows similarities with those from domestic canids, sometimes forming trunks and occasionally rising individually. Thus, it can be concluded that the anatomical pattern of the femoral artery and its branches in wild canids shows similarities with that from domestic canids, but inherent variations in each species are also present.

As intussuscepções são acidentes intestinais incomuns e que podem resultar em desconforto abdominal agudo e progressivo ou recorrente em potros. Esta condição afeta potros neonatos de forma assintomática e de 3 a 12 meses são emergências cirúrgicas quando envolvem o intestino delgado, principalmente o jejuno. A avaliação ultrassonográfica transabdominal é um importante para o exame desses animais devido às limitações de seu tamanho para avaliações do abdômen agudo. O presente relato de caso mostra a importância da utilização do ultrassom transabdominal em potros com abdômen agudo

As intussuscepções são acidentes intestinais incomuns e que podem resultar em desconforto abdominal agudo e progressivo ou recorrente em potros. Esta condição afeta potros neonatos de forma assintomática e de 3 a 12 meses são emergências cirúrgicas quando envolvem o intestino delgado, principalmente o jejuno. A avaliação ultrassonográfica transabdominal é um importante para o exame desses animais devido às limitações de seu tamanho para avaliações do abdômen agudo. O presente relato de caso mostra a importância da utilização do ultrassom transabdominal em potros com abdômen agudo | Intussusceptions are unusual intestinal incidents which may result in acute and progressive or recurrent abdominal discomfort in foals. This condition asymptomatically affects newborn foals (3-12 months), are surgical emergencies when it involves the small intestine, especially the jejunum. Transabdominal ultrasound evaluation is an important diagnostic method, due to their size limitations for acute abdomen evaluation. The present report shows the importance of using transabdominal ultrasound in foals with acute abdomen.

Sonography is a safe and non-invasive imaging modality, with the added benefit of providing dynamic images. Power Doppler sonography allows blood vessel identification regardless of flow intensity or direction. A one-year-old Ile de France ewe was admitted to the FMVZ-USP Veterinary Hospital with a complete tibial fracture. The animal was submitted to general inhalation anesthesia and fracture repair using a 3.5 mm locking compression plate. Power Doppler sonography was used to assess neovascularization over the course of the bone healing process. Formation of new vessels was noted between postoperative days 14 and 21; new vessels regressed progressively on subsequent assessments (postoperative days 28 and 35). Power Doppler sonography enabled early detection of newly formed blood vessels at the fracture site. The non-invasive nature of this imaging modality prevented patient stress and provided useful information on the progression of bone healing. Early neovascularization was thought to reflect successful postoperative healing of the tibial fracture described.

A ultrassonografia é técnica de imagem segura e não invasiva que fornece imagens dinâmicas. O Power Doppler é modalidade ultrassonográfica que permite a visualização de vasos sanguíneos sem depender de intensidade e direção de fluxo. Admitiu-se no Hospital Veterinário da FMVZ-USP um ovino fêmea, de raça Ile de France, com um ano de idade e apresentando fratura completa de tíbia em bisel. O animal foi submetido à anestesia inalatória para a realização de osteossíntese com placa bloqueada de 3,5 mm. Durante o período pós-operatório foram realizadas imagens de ultrassonografia Power Doppler para a avaliação da neovascularização ao longo do processo de regeneração óssea. Entre o 14º e o 21º dia do período pós-operatório, identificou-se a presença de vasos sanguíneos neoformados, que apresentaram sinais de regressão nas avaliações subsequentes (realizadas no 28º e no 35º dia pós-operatório). A ultrassonografia Power Doppler mostrou-se eficiente na detecção precoce de vasos sanguíneos neoformados na região da fratura no período pós-operatório, sendo um exame não invasivo, que não gerou estresse para o animal e que pode estar relacionado ao sucesso no reparo ósseo da tíbia do animal submetido à osteossíntese. | Sonography is a safe and non-invasive imaging modality, with the added benefit of providing dynamic images. Power Doppler sonography allows blood vessel identification regardless of flow intensity or direction. A one-year-old Ile de France ewe was admitted to the FMVZ-USP Veterinary Hospital with a complete tibial fracture. The animal was submitted to general inhalation anesthesia and fracture repair using a 3.5 mm locking compression plate. Power Doppler sonography was used to assess neovascularization over the course of the bone healing process. Formation of new vessels was noted between postoperative days 14 and 21; new vessels regressed progressively on subsequent assessments (postoperative days 28 and 35). Power Doppler sonography enabled early detection of newly formed blood vessels at the fracture site. The non-invasive nature of this imaging modality prevented patient stress and provided useful information on the progression of bone healing. Early neovascularization was thought to reflect successful postoperative healing of the tibial fracture described.

The multidrug resistant and the emergence of methicillin-resistant staphylococci isolated from animals, food, and humans are public health concern. These microorganisms produce different toxins related to food poisoning in humans. This study aimed to characterize Staphylococcus spp. isolated from two organic milk farms in Brazil. A total of 259 milk samples were collected, from which 58 (22.4%) Staphylococcus spp. were isolated. The highest sensibility to ceftiofur and sulfamethoxazole/trimethoprim was observed in 96.6% of Staphylococcus spp., and whereas 89% were resistant to penicillin G. The mecA gene was detected in 13.8% of the isolates. SEA and SEC were the most common enterotoxins detected. PFGE revealed genetic heterogeneity from S. intermedius and S. warneri analyzed, while S. aureus presented similar profiles among isolates from the two studied herds. To the best of our knowledge, the current study describes for the first time presence of enterotoxins, mecA gene, and genetic diversity of staphylococci isolated from organic dairy farms in Brazil.

A emergência de estafilococos multirresistentes e resistentes à meticilina, isolados de animais, alimentos e humanos é uma preocupação em saúde pública. Esses micro-organismos produzem diferentes toxinas relacionadas à intoxicação alimentar em humanos. Este estudo caracterizou Staphylococcus spp. isolados em duas fazendas orgânicas no Brasil. Foram coletadas 259 amostras de leite em duas propriedades leiteiras orgânicas, nas quais 58 (22,4%) estirpes de Staphylococcus spp. foram isoladas. A maior sensibilidade dos isolados foi observada para ceftiofur e sulfametoxazol/trimetoprim em 96,6%. Em contraste, acima de 89% de resistência dos estafilicocos foi encontrada para penicilina G. O gene mecA foi identificado em 13,8% dos isolados. SEA e SEC foram as enterotoxinas mais comumente detectadas. PFGE revelou heterogeneidade genética entre S. intermedius e S. warneri, enquanto S. aureus demonstraram perfis semelhantes entre isolados dos dois rebanhos estudados. Relata-se pela primeira vez no Brasil a detecção de enterotoxinas, o gene mecA e diversidade genética em estafilococos isolados de vacas em produção orgânica. | The multidrug resistant and the emergence of methicillin-resistant staphylococci isolated from animals, food, and humans are public health concern. These microorganisms produce different toxins related to food poisoning in humans. This study aimed to characterize Staphylococcus spp. isolated from two organic milk farms in Brazil. A total of 259 milk samples were collected, from which 58 (22.4%) Staphylococcus spp. were isolated. The highest sensibility to ceftiofur and sulfamethoxazole/trimethoprim was observed in 96.6% of Staphylococcus spp., and whereas 89% were resistant to penicillin G. The mecA gene was detected in 13.8% of the isolates. SEA and SEC were the most common enterotoxins detected. PFGE revealed genetic heterogeneity from S. intermedius and S. warneri analyzed, while S. aureus presented similar profiles among isolates from the two studied herds. To the best of our knowledge, the current study describes for the first time presence of enterotoxins, mecA gene, and genetic diversity of staphylococci isolated from organic dairy farms in Brazil.

Diabetes mellitus is a chronic disorder that results in hyperglycemia by absolute or relative insulin deficiency, sometimes leading to fatal complications. The successful treatment of diabetic dogs depends on nutritional management and insulin applications. Studies evaluating the nutrition of diabetic dogs focused on fiber as the main factor in glycemic control; however, new research describes the role of starch as key in postprandial glycemic fluctuation, also attributing a central role for body condition scores and feed management in the adequate glycemic control of diabetic dogs. The aim of this paper is to review nutritional aspects to better control diabetes in dogs.

Diabetes Mellitus é uma desordem crônica que resulta em hiperglicemia pela deficiência absoluta ou relativa de insulina, que gera complicações que podem levar à morte. O sucesso do tratamento do cão diabético depende da aplicação de insulina e do adequado manejo nutricional. Estudos que avaliaram aspectos nutricionais de cães diabéticos focavam na fibra dietética como o principal fator controlador da glicemia, porém novas pesquisas apontam o amido como principal responsável pelas respostas glicêmicas pós-prandiais e atribuem importante papel ao escore de condição corporal e ao manejo alimentar no adequado controle glicêmico de cães diabéticos. O objetivo deste trabalho é revisar os principais aspectos da nutrição de cães diabéticos para o melhor controle da doença. | Diabetes mellitus is a chronic disorder that results in hyperglycemia by absolute or relative insulin deficiency, sometimes leading to fatal complications. The successful treatment of diabetic dogs depends on nutritional management and insulin applications. Studies evaluating the nutrition of diabetic dogs focused on fiber as the main factor in glycemic control; however, new research describes the role of starch as key in postprandial glycemic fluctuation, also attributing a central role for body condition scores and feed management in the adequate glycemic control of diabetic dogs. The aim of this paper is to review nutritional aspects to better control diabetes in dogs.

Although pain is considered the 4th vital sign and one of the most frequently observed clinical signs in domestic animals’ clinical practice, its treatment is still inadequate despite significant improvement in the last few years. Acute post-operative pain has aroused great interest due to its potential risk of developing into chronic pain, and if not treated properly, it might worsen the recovery and the patient’s quality of life. Cats are one of the least studied species of domestic animals regarding pain recognition and control. Some of the difficulties lie in pain assessment and perception. The consensus published in February 2016 about behavioral signs of pain in cats considered some signs to be reliable and sensitive for the assessment of pain in this species in many different clinical conditions, however it still states that more studies will be necessary in order to evaluate its clinical validity and applicability, especially considering the various pain intensities. As an attempt to quantify pain intensity in cats, several types of traditional subjective scales and others that facilitate pain assessment by combining the observation of spontaneous behavioral signals of pain and qualitative response to palpation of surgical wound are used as tools. It is necessary to use specific scales for each type of pain and for each specific animal species so to minimize the subjectivity and the partiality of the observers, reducing bias and improving efficacy, thus leading to a better patient care.

Embora a dor seja considerada o quarto sinal vital e uma das manifestações mais comumente encontradas na prática médica veterinária dos animais domésticos, seu tratamento ainda é inadequado. A dor aguda pós-operatória tem suscitado grande interesse por seu potencial risco de cronificação caso não adequadamente tratada, podendo piorar a recuperação e a qualidade de vida do paciente. O gato é uma das espécies domésticas menos estudadas no que diz respeito ao reconhecimento e controle da dor, e algumas das dificuldades residem na avaliação e na percepção da dor. O consenso sobre os sinais comportamentais da dor nesta espécie publicado em fevereiro de 2016 considerou alguns sinais como confiáveis e sensíveis para a avaliação da dor em gatos, em toda uma gama de diferentes condições clínicas, porém afirma a necessidade da realização de estudos que analisem a sua validade e aplicabilidade clínica, especialmente em relação a diferentes intensidades de dor. Na tentativa de se quantificar a dor são utilizados vários tipos de escalas subjetivas tradicionais e outras que facilitam a avaliação da efetividade da analgesia, a partir da observação de sinais comportamentais espontâneos indicativos de dor, combinada a uma resposta qualitativa à palpação da ferida cirúrgica. Faz-se necessária a utilização de escalas específicas para o tipo de dor (aguda ou crônica) e para a espécie, de modo a minimizar a subjetividade e a parcialidade dos observadores e possibilitando uma melhor assistência ao paciente. | Although pain is considered the 4th vital sign and one of the most frequently observed clinical signs in domestic animals’ clinical practice, its treatment is still inadequate despite significant improvement in the last few years. Acute post-operative pain has aroused great interest due to its potential risk of developing into chronic pain, and if not treated properly, it might worsen the recovery and the patient’s quality of life. Cats are one of the least studied species of domestic animals regarding pain recognition and control. Some of the difficulties lie in pain assessment and perception. The consensus published in February 2016 about behavioral signs of pain in cats considered some signs to be reliable and sensitive for the assessment of pain in this species in many different clinical conditions, however it still states that more studies will be necessary in order to evaluate its clinical validity and applicability, especially considering the various pain intensities. As an attempt to quantify pain intensity in cats, several types of traditional subjective scales and others that facilitate pain assessment by combining the observation of spontaneous behavioral signals of pain and qualitative response to palpation of surgical wound are used as tools. It is necessary to use specific scales for each type of pain and for each specific animal species so to minimize the subjectivity and the partiality of the observers, reducing bias and improving efficacy, thus leading to a better patient care.

Fifteen adult rabbits were used to evaluate the repair of experimental common calcaneal tendon defects treated with glycerin-preserved canine carotid artery xenografts alone or associated with autologous mononuclear bone marrow cells (AMCs). Rabbits were submitted to daily clinical examination; implanted sites were analyzed under light microscopy within 15, 30 and 60 days of surgery. Pelvic limbs receiving xenografts associated with AMCs had better physical performance as well as higher collagen fiber, fibroblast, lymphocyte and new vessel counts at all postoperative time points considered. Glycerin-preserved canine carotid artery xenografts associated with AMCs constituted an effective method for common calcaneal tendon repair in rabbits.

Utilizou-se 15 coelhos adultos para avaliar o reparo de lesão do tendão calcanear comum com implante de artéria carótida de cães, preservada em glicerina, associado ou não a células mononucleares autólogas da medula óssea (CMAs). Os animais foram observados diariamente por meio de avaliações clínicas e o local do implante foi analisado sob microscopia de luz decorridos 15, 30 e 60 dias de pós-operatório. Notou-se em todos os períodos de observação, com o implante associado às CMAs, melhor desempenho físico dos membros pélvico e maior intensidade de fibras colágenas, fibroblastos e linfócitos e neovascularização. A utilização de xenoimplante de artéria carótida de cães preservada em glicerina associado à administração de células mononucleares da medula óssea foi eficiente no reparo do tendão calcanear comum de coelhos. | Fifteen adult rabbits were used to evaluate the repair of experimental common calcaneal tendon defects treated with glycerin-preserved canine carotid artery xenografts alone or associated with autologous mononuclear bone marrow cells (AMCs). Rabbits were submitted to daily clinical examination; implanted sites were analyzed under light microscopy within 15, 30 and 60 days of surgery. Pelvic limbs receiving xenografts associated with AMCs had better physical performance as well as higher collagen fiber, fibroblast, lymphocyte and new vessel counts at all postoperative time points considered. Glycerin-preserved canine carotid artery xenografts associated with AMCs constituted an effective method for common calcaneal tendon repair in rabbits.

The aim of this study was to evaluate clinical and histopathological aspects of topical application of pure and ozonized andiroba oil (Carapa guianensis Aublet.) on the healing process of wounds of healthy horses. Eight 6.25-cm2 wounds were surgically produced on each horse, cranial to the sacrum, being four wounds on each side of the lumbar region. In three animals, left side was used for macroscopic observations and area measurement and right side was used for histopathological analysis. For the other two animals, evaluations were inverted. Beginning of the topical treatment occurred 12 hours after surgical induction of the injuries and was maintained daily until complete healing of the wounds, using sequentially and bilaterally in the craniocaudal direction saline solution (GC), ozonized saline solution (GO), pure andiroba oil (GAP) and ozonized andiroba oil (GAO). Randomly, sequence of the treatments was modified. Macroscopic and histopathological analyses were performed at 3, 7, 14, and 21 days after surgery. Completed healing time for all wounds were recorded. A wound contraction of 67.75% for GC, 65.26% for GO, 67.91% for GAP, and 69.84% for GAO were recorded. Histopathologic evaluation revealed that wounds from the GAO and GAP had an advanced epithelialization, fibroblast proliferation and collagen deposition, moderate vascular proliferation, and presence of PMN infiltrate and discrete viewing of MN. It was possible to conclude that all treatments had benefits when comparing to control group and both pure and ozonized andiroba oil can be good options for wound treatment in horses.

Este trabalho realizou uma avaliação clínica e histopatológica da aplicação tópica do óleo de andiroba (Carapa guianensis Aublet), puro e ozonizado, no processo de cicatrização de feridas em cinco equinos saudáveis. Oito feridas de 6,25 cm2 foram induzidas cirurgicamente, quatro de cada lado da região lombar, craniais em relação à região sacral. Em três animais, o lado esquerdo foi destinado à avaliação macroscópica e mensuração de área, enquanto o lado direito foi destinado à análise histopatológica. Nos outros dois animais, as avaliações foram invertidas. O tratamento tópico foi iniciado 12 horas após a indução cirúrgica e foi mantido diariamente até a completa cicatrização das feridas. Foram usados, sequencialmente e bilateralmente, no sentido craniocaudal: solução salina (GC), solução salina ozonizada (GO), óleo de andiroba puro (GAP) e óleo de andiroba ozonizado (GAO). Aleatoriamente, a sequência de tratamentos foi modificada. As análises macroscópicas e microscópicas foram realizadas 3, 7, 14 e 21 dias após a cirurgia, e o tempo total para cicatrização registrado. A contração da ferida foi de 67,75% para GC, 65,26% para GO, 67,91% para GAP, e 69,84% para GAO. A avaliação histopatológica demonstrou que as feridas tratadas com GAO e GAP apresentaram uma avançada epitelização, proliferação fibroblástica e deposição de colágeno, moderada proliferação vascular e presença de infiltrados de células polimorfonucleares (PMN) e discreta proliferação de células mononucleares (MN). Foi possível concluir que todos os tratamentos usados foram benéficos perante o grupo de controle, mostrando que as versões pura e ozonizada do óleo de andiroba representam alternativas terapêuticas ao tratamento de feridas em equinos. | The aim of this study was to evaluate clinical and histopathological aspects of topical application of pure and ozonized andiroba oil (Carapa guianensis Aublet.) on the healing process of wounds of healthy horses. Eight 6.25-cm2 wounds were surgically produced on each horse, cranial to the sacrum, being four wounds on each side of the lumbar region. In three animals, left side was used for macroscopic observations and area measurement and right side was used for histopathological analysis. For the other two animals, evaluations were inverted. Beginning of the topical treatment occurred 12 hours after surgical induction of the injuries and was maintained daily until complete healing of the wounds, using sequentially and bilaterally in the craniocaudal direction saline solution (GC), ozonized saline solution (GO), pure andiroba oil (GAP) and ozonized andiroba oil (GAO). Randomly, sequence of the treatments was modified. Macroscopic and histopathological analyses were performed at 3, 7, 14, and 21 days after surgery. Completed healing time for all wounds were recorded. A wound contraction of 67.75% for GC, 65.26% for GO, 67.91% for GAP, and 69.84% for GAO were recorded. Histopathologic evaluation revealed that wounds from the GAO and GAP had an advanced epithelialization, fibroblast proliferation and collagen deposition, moderate vascular proliferation, and presence of PMN infiltrate and discrete viewing of MN. It was possible to conclude that all treatments had benefits when comparing to control group and both pure and ozonized andiroba oil can be good options for wound treatment in horses.

Little research has examined the views of Latin Americans on the use of animals in research. This study examined the degree to which Brazilians support the use of animals in research and the reasons they put forth to explain their position. Participants were randomly assigned to research scenarios describing the use of animals for biomedical or environmental benefits, and varying in the number of pigs required. Each scenario began by proposing the use of conventional pigs and then advanced to the development and use of genetically modified animals (GMA). A total of 151 quantitative and 307 qualitative answers were analysed. Scenario and number of animals had little effect on support, but opposition increased from 25% to 58% when pigs were used to develop a GM strain for the environmental scenario. Support to use of animals was often conditional upon adequate protection of the animals’ welfare. Participants were less willing to support research on environmental scenario when this involved the creation of GMA, in part because they feared the risk associated with this technology.

Há poucos estudos sobre a opinião de latino-americanos quanto ao uso de animais em pesquisa. Este estudo avaliou o grau de apoio e as motivações de brasileiros em relação a essa questão. Os participantes foram aleatoriamente apresentados a dois cenários, um biomédico e outro ambiental, variando também o número de animais usados. Cada cenário se iniciava com o uso de suínos convencionais e prosseguia com o desenvolvimento e uso de animais geneticamente modificados. Foram analisadas 151 respostas quantitativas e 307 qualitativas. O cenário e o número de animais tiveram pouco efeito no apoio ao uso dos animais, no entanto, a oposição aumentou de 25% para 58% quando o uso de suínos geneticamente modificados foram apresentados no cenário ambiental. O apoio ao uso de animais em pesquisa estava frequentemente condicionado ao grau de bem-estar animal, e o apoio à pesquisa diminuiu com o uso de animais geneticamente modificados, em parte, devido aos riscos associados a essa tecnologia. | Little research has examined the views of Latin Americans on the use of animals in research. This study examined the degree to which Brazilians support the use of animals in research and the reasons they put forth to explain their position. Participants were randomly assigned to research scenarios describing the use of animals for biomedical or environmental benefits, and varying in the number of pigs required. Each scenario began by proposing the use of conventional pigs and then advanced to the development and use of genetically modified animals (GMA). A total of 151 quantitative and 307 qualitative answers were analysed. Scenario and number of animals had little effect on support, but opposition increased from 25% to 58% when pigs were used to develop a GM strain for the environmental scenario. Support to use of animals was often conditional upon adequate protection of the animals’ welfare. Participants were less willing to support research on environmental scenario when this involved the creation of GMA, in part because they feared the risk associated with this technology.

This work reports one case of infertility in a male jaguar (Panthera onca) aged 21 years and weighing 125 kg. Changes in sperm due to chronic stress, inadequate food handling and reproductive senescence are emphasized.

O presente trabalho relata um caso de infertilidade em uma onça-pintada (Panthera onca), macho, de 21 anos e 125 kg. São ressaltadas as alterações ocorridas nos espermatozoides, devido a estresse crônico, manejo alimentar inadequado e senescência reprodutiva. | This work reports one case of infertility in a male jaguar (Panthera onca) aged 21 years and weighing 125 kg. Changes in sperm due to chronic stress, inadequate food handling and reproductive senescence are emphasized.