Leonardo Alves - Academia.edu (original) (raw)
Papers by Leonardo Alves
Acta Scientiae Veterinariae, Jul 19, 2019
Background: Cryptorchidism is characterized by the incomplete descent of one or both testicles to... more Background: Cryptorchidism is characterized by the incomplete descent of one or both testicles to the scrotum, being a hereditary alteration and frequently an unilateral condition. Besides the sexual and aggressive behaviour, the retained testicle is commonly located in abdominal cavity, being considered a risk factor for neoplasm development. The most common testicular neoplasm reported in mammalian species are Sertoli cell tumors, Leydig cell tumors, seminomas and teratomas. A presumptive diagnosis of testicular tumor can be achieved by ultrasonography, although the definitive diagnosis is obtained only by histopathology. In this report, we are presenting a case of testicular teratoma in an unilateral abdominal cryptorchid horse. Case: A 3 year-old stallion, American Quarter Horse, was attended and presented a right testicle retained inside the abdomen and a left testicle in the scrotum. Transrectal palpation was used to identify a round and firm structure, presumably the right testicle, lateral to the urinary bladder and located inside abdomen. Further, a transrectal ultrasound examination showed a complex, round mass with irregular edges containing both cystic and solid structures, hypoechoic fluid-filled cavities separated by linear hyperechoic septa. After a clinical examination, the animal was diagnosed with cryptorchidism and was submitted to orchiectomy and cryptorchidectomy by inguinal approach. Surgery was performed under general anesthesia and postoperative care included cold shower, anti-inflammatory and antibiotic therapy. Testicles were surgically removed and further sent for histopathological examination. The visual appearance of the right undescended testicle showed multiple round, cystic, and solid structures on outer surface, while the left descended testicle was apparently normal. The macroscopic evaluation showed that the affected testicle consisted of a firm solid mass with multiple fluid-filled cystic areas. Microscopically, the testicular architecture was replaced by cysts, fibrous tissue, adipose tissue, glandular structures, and foci of calcification. The histology revealed that the retained testicle had a testicular teratoma. Discussion: Reproductive disorders are common in horses and represent a significant part of the equine practitioner routine. Equine cryptorchidism is the most common non-lethal developmental defect of stallions. Surgery is the best treatment, since this alteration is hereditary. Teratomas have been reported more often in cryptorchid testicles, being usually just diagnosed as an incidental finding during surgical procedure. Under field conditions, usually the testicles are not sent for histopathological evaluation and this fact can contribute to underdiagnoses. Ultrasonography allows clinicians to determine testis location, morphological changes in the testes, as well as to elaborate a presumptive diagnose of testicular neoplasm. Histopathology is the best exam to achieve definitive diagnoses in the presence of testicular alterations. In our report, diagnosis of testicular neoplasia was not made before surgery and testicular mass was an incidental finding during pre-surgical examination. In the presence of testicular enlargement or presence of testicular mass, neoplasia should be included in the differential diagnosis. In conclusion, although rare, teratoma should be included in differential diagnoses of retained testicles, especially those with morphological alterations.
![Research paper thumbnail of [Produção e composição do leite em vacas com desordens no pós-parto]](https://attachments.academia-assets.com/110285327/thumbnails/1.jpg)
](This study aimed to determine the impact of different post-partum disorders on milk yield and com... more This study aimed to determine the impact of different post-partum disorders on milk yield and composition. One hundred and fifteen Holstein cows from a commercial dairy farm located in the state of Rio Grande do Sul in southern Brazil were monitored up to 62 days post-partum. During this period, body condition score evaluation and animal clinical examination were conducted. Percentages of fat, protein, and lactose, as well as somatic cells score, were determined in milk samples. The AST activity and concentrations of NEFA, calcium, and BHBA, were analyzed in blood samples. The occurrence of clinical disorders was identified in 30 (26%) cows. Subclinical disorders were identified in 64 (56%) cows. Only 21 (18%) cows did not suffer any kind of disorder within the studied period. In this study, no significant differences were found in milk production, protein, and somatic cell count in clinical, subclinical, and healthy cows. Milk fat and the fat: protein quotient (F:P) were higher in cows with clinical disorders and the 6 to 21 days in milk, and lactose were lower in cows with clinical disorders and the 22 to 42 days in milk (P<0.05).
Revista Brasileira De Parasitologia Veterinaria, 2020
Revista Brasileira de Parasitologia Veterinária, 2020
Cattle tick fever (CTF) causes significant economic losses in the livestock sector. The pathogeni... more Cattle tick fever (CTF) causes significant economic losses in the livestock sector. The pathogenic action of the hemoparasites is associated with anemia, weight loss, abortion and reduced productivity, which result with animal death. Programs to prevent CTF involve several procedures, including immunization, chemoprophylaxis and use of ectoparasiticides, together with the vector control in the environment. The objective of this study was to report an acute outbreak of CTF in a group of 157 Hereford cattle from a farm without presence of the vector, that were moved to a farm in the same state with a high tick infestation (Rhipicephalus microplus). On the day before the transportation, the animals received a chemoprophylaxis with imidocarb dipropionate (3 mg/kg, SC), which was repeated 21 days after the first application. After 42 days, some animals showed signs compatible with CTF, which was confirmed through clinical examination, necropsy, histopathological and hemoparasitological a...
Acta Scientiae Veterinariae, 2019
Background: In various regions of Brazil, horses and cattle are considered the most susceptible a... more Background: In various regions of Brazil, horses and cattle are considered the most susceptible animals to plant poisoning. The plants of the genus Senecio are the most important in Rio Grande do Sul because they have the active principle known as the pyrrolizidine alkaloid. Its diagnosis is made through epidemiology, clinical signs and histopathological analysis, either of the tissues obtained by biopsy or necropsy. The objective of this study was to report and characterize the epidemiological, clinical and anatomopathological findings of three cases of natural poisoning by Senecio brasiliensis in horses assisted at the Hospital Veterinário (HV) of the Universidade de Passo Fundo (UPF).Cases: Three traction horses, two males and one female, were admitted at the HV-UPF for clinical care. The animals were presenting anorexia, weight loss, dysmetria, proprioceptive deficit and signs suggestive of colic. The epidemiological study revealed that the sites where these animals were located...
Arquivo Brasileiro de Medicina Veterinária e Zootecnia, 2019
The aim of this study was to evaluate the components of milk and mammary gland health of Criollo ... more The aim of this study was to evaluate the components of milk and mammary gland health of Criollo mares. A total of 12 mares coming from a farm in southern Brazil were used. Samples of milk were taken from each mare every two weeks up to 180 days of lactation. The characteristics analyzed were fat, protein, lactose, total solids, somatic cell count (SCC) and total bacterial count (TBC). In relation to the health of the udder and the milk of the mares, the SCC was 24.1 x 103cells / ml and TBC was 44 x 103CFU / ml, while the average of milk components was 0.57% fat, 1.95% protein, 6.71% lactose and 9.24% total solids. Stage of lactation and individual characteristics may influence the level of milk components. The low SCC and TBC found in the Criollo breed mares’ milk ensure the quality of their milk compared to other species.
Journal of Equine Veterinary Science, Jul 1, 2011
Abstract We designed an experiment to determine the concentrations of a marker of lipid peroxidat... more Abstract We designed an experiment to determine the concentrations of a marker of lipid peroxidation in erythrocytes of horses submitted to jumping competitions. Erythrocytes of exercised horses showed a significant increase in the concentration of thiobarbituric acid-reactive species content immediately after exercise (P&amp;amp;amp;amp;lt;. 001), which returned to normal levels 24 hours after exercise. Nonprotein sulfhydryl groups and superoxide dismutase activity (EC 1.15. 1.1) in erythrocytes were significantly higher 24 hours after exercise, as ...
Acta Scientiae Veterinariae, 2017
Background: Lymphoma, although rare, is the most common hematopoietic neoplasia in horses. The ov... more Background: Lymphoma, although rare, is the most common hematopoietic neoplasia in horses. The overall incidence of lymphoma is between 1.3-2.8% of all equine neoplasia and it has a prevalence of 0.002-0.5% in the equine population. Lymphoma can be classified as multicentric, alimentary, mediastinal, cutaneous and solitary. The cutaneous is the rarest form and it usually presents with multifocal skin lesions, with no other clinical signs. The diagnoses is accomplished by histopathological examination of a biopsy or cytological examination of a fine needle aspirate. The aim of the current study is to report a case of the rarest form of equine lymphoma, the cutaneous.Case: An 8-year-old equine female, Quarter Mile, was evaluated due to volume’s increase and subcutaneous nodules disseminated along the body. These lesions developed gradually during 2 years. The mare was used for ridding, it was kept in the field with 10 other equines and was the only one affected. The mare was vaccinate...
Arquivo Brasileiro de Medicina Veterinária e Zootecnia
This study aimed to determine the impact of different post-partum disorders on milk yield and com... more This study aimed to determine the impact of different post-partum disorders on milk yield and composition. One hundred and fifteen Holstein cows from a commercial dairy farm located in the state of Rio Grande do Sul in southern Brazil were monitored up to 62 days post-partum. During this period, body condition score evaluation and animal clinical examination were conducted. Percentages of fat, protein, and lactose, as well as somatic cells score, were determined in milk samples. The AST activity and concentrations of NEFA, calcium, and BHBA, were analyzed in blood samples. The occurrence of clinical disorders was identified in 30 (26%) cows. Subclinical disorders were identified in 64 (56%) cows. Only 21 (18%) cows did not suffer any kind of disorder within the studied period. In this study, no significant differences were found in milk production, protein, and somatic cell count in clinical, subclinical, and healthy cows. Milk fat and the fat: protein quotient (F:P) were higher in ...
Research, Society and Development
Guttural pouch empyema is usually a consequence of upper respiratory tract infections, especially... more Guttural pouch empyema is usually a consequence of upper respiratory tract infections, especially those caused by Streptococcus equi. In adult horses, empyema is a common disease, whereas considered rare in foals. The aim of this work was to report a case of unilateral guttural pouch empyema in a filly, with a focus on diagnostic and treatment approaches. A 1-month-old filly, 68 kg, Mangalarga Marchador, was admitted because of respiratory distress and enlargement caudally in the head. Clinical examination revealed dyspnea, dysphagia, lymphadenopathy, unilateral enlargement in the retropharyngeal area, and mucopurulent nasal discharge. Further, endoscopic examination confirmed the presence of purulent material inside the left guttural pouch and a diagnosis of empyema was arrived at. Drainage was performed surgically, a catheter was inserted for guttural pouch lavage. The animal received bromexin, dexamethasone, flunixin meglumine, ceftiofur, probiotics, vitamin complexes, and ringer...
Acta Scientiae Veterinariae
Background: Equine pituitary pars intermedia dysfunction, also known as equine Cushing’s syndrome... more Background: Equine pituitary pars intermedia dysfunction, also known as equine Cushing’s syndrome, is a neurodegenerative disease. An important risk factor for Cushing’s is advanced aging and it is the most common endocrine disorder in older horses. The prevalence in horses aged over 10 and 15 years is reported as 9.3% and 21%, respectively. Due to the slow progressive nature of the disease, seasonal variation in hormone output and overlapping endocrine response to other events, accurate diagnosis is challenging. The diagnosis requires the combination of anamnesis, clinical signs, in addition to laboratory tests results. This study aimed to report Cushing’s syndrome in a Crioulo breed horse focusing on diagnostic methods.Case: A 13-year-old male Crioulo breed, orchiectomized, was attended at the Universidade de Passo Fundo (UPF), in Passo Fundo, RS, Brazil. The owner reported that the animal had progressive weight loss and coat abnormal growth, with curly appearance. From visual ins...
O casco e um importante componente do aparelho locomotor dos equinos e sua ma conformacao pode ac... more O casco e um importante componente do aparelho locomotor dos equinos e sua ma conformacao pode acarretar uma serie de patologias. O presente trabalho avaliou o equilibrio podal externo e interno dos cascos dos membros toracicos de 58 equinos (34 machos e 24 femeas) com idade media de 6,5 anos (variando entre 2,5 a 15 anos), da raca Crioula utilizados em provas de laco no norte do Rio Grande do Sul. Foram determinadas o comprimento medio de pinca, ângulo do casco comprimento de talao lateral e medial, ângulo palmar da terceira falange (P3), espessura da sola e distância media do ponto de quebra (DBO). Os valores me- dios obtidos foram: comprimento medio de pinca de 9,21 ± 0,93 cm, ângulo do casco de 51,8 ± 3,5o, comprimento de talao lateral de 4,94 ± 1,5 cm medial de 4,95 ± 1,5 cm, ângulo da P3 4,95o ± 2,46 espessura de sola de 22,0 ± 5,98 mm e DBO de 33, 6 ± 7,48 mm. Os problemas de equilibrio mais encontrados foram pincas longas (89,7%), DBO longo (67,2%), taloes escorridos (48,3%)...
Cataventos Revista De Extensao Da Universidade De Cruz Alta, Oct 29, 2013
Cataventos Revista De Extensao Da Universidade De Cruz Alta, 2010
Ciência Animal Brasileira, 2011
Journal of Equine Veterinary Science, 2011
Abstract We designed an experiment to determine the concentrations of a marker of lipid peroxidat... more Abstract We designed an experiment to determine the concentrations of a marker of lipid peroxidation in erythrocytes of horses submitted to jumping competitions. Erythrocytes of exercised horses showed a significant increase in the concentration of thiobarbituric acid-reactive species content immediately after exercise (P&amp;amp;amp;amp;lt;. 001), which returned to normal levels 24 hours after exercise. Nonprotein sulfhydryl groups and superoxide dismutase activity (EC 1.15. 1.1) in erythrocytes were significantly higher 24 hours after exercise, as ...
Acta Scientiae Veterinariae, Jul 19, 2019
Background: Cryptorchidism is characterized by the incomplete descent of one or both testicles to... more Background: Cryptorchidism is characterized by the incomplete descent of one or both testicles to the scrotum, being a hereditary alteration and frequently an unilateral condition. Besides the sexual and aggressive behaviour, the retained testicle is commonly located in abdominal cavity, being considered a risk factor for neoplasm development. The most common testicular neoplasm reported in mammalian species are Sertoli cell tumors, Leydig cell tumors, seminomas and teratomas. A presumptive diagnosis of testicular tumor can be achieved by ultrasonography, although the definitive diagnosis is obtained only by histopathology. In this report, we are presenting a case of testicular teratoma in an unilateral abdominal cryptorchid horse. Case: A 3 year-old stallion, American Quarter Horse, was attended and presented a right testicle retained inside the abdomen and a left testicle in the scrotum. Transrectal palpation was used to identify a round and firm structure, presumably the right testicle, lateral to the urinary bladder and located inside abdomen. Further, a transrectal ultrasound examination showed a complex, round mass with irregular edges containing both cystic and solid structures, hypoechoic fluid-filled cavities separated by linear hyperechoic septa. After a clinical examination, the animal was diagnosed with cryptorchidism and was submitted to orchiectomy and cryptorchidectomy by inguinal approach. Surgery was performed under general anesthesia and postoperative care included cold shower, anti-inflammatory and antibiotic therapy. Testicles were surgically removed and further sent for histopathological examination. The visual appearance of the right undescended testicle showed multiple round, cystic, and solid structures on outer surface, while the left descended testicle was apparently normal. The macroscopic evaluation showed that the affected testicle consisted of a firm solid mass with multiple fluid-filled cystic areas. Microscopically, the testicular architecture was replaced by cysts, fibrous tissue, adipose tissue, glandular structures, and foci of calcification. The histology revealed that the retained testicle had a testicular teratoma. Discussion: Reproductive disorders are common in horses and represent a significant part of the equine practitioner routine. Equine cryptorchidism is the most common non-lethal developmental defect of stallions. Surgery is the best treatment, since this alteration is hereditary. Teratomas have been reported more often in cryptorchid testicles, being usually just diagnosed as an incidental finding during surgical procedure. Under field conditions, usually the testicles are not sent for histopathological evaluation and this fact can contribute to underdiagnoses. Ultrasonography allows clinicians to determine testis location, morphological changes in the testes, as well as to elaborate a presumptive diagnose of testicular neoplasm. Histopathology is the best exam to achieve definitive diagnoses in the presence of testicular alterations. In our report, diagnosis of testicular neoplasia was not made before surgery and testicular mass was an incidental finding during pre-surgical examination. In the presence of testicular enlargement or presence of testicular mass, neoplasia should be included in the differential diagnosis. In conclusion, although rare, teratoma should be included in differential diagnoses of retained testicles, especially those with morphological alterations.
This study aimed to determine the impact of different post-partum disorders on milk yield and com... more This study aimed to determine the impact of different post-partum disorders on milk yield and composition. One hundred and fifteen Holstein cows from a commercial dairy farm located in the state of Rio Grande do Sul in southern Brazil were monitored up to 62 days post-partum. During this period, body condition score evaluation and animal clinical examination were conducted. Percentages of fat, protein, and lactose, as well as somatic cells score, were determined in milk samples. The AST activity and concentrations of NEFA, calcium, and BHBA, were analyzed in blood samples. The occurrence of clinical disorders was identified in 30 (26%) cows. Subclinical disorders were identified in 64 (56%) cows. Only 21 (18%) cows did not suffer any kind of disorder within the studied period. In this study, no significant differences were found in milk production, protein, and somatic cell count in clinical, subclinical, and healthy cows. Milk fat and the fat: protein quotient (F:P) were higher in cows with clinical disorders and the 6 to 21 days in milk, and lactose were lower in cows with clinical disorders and the 22 to 42 days in milk (P<0.05).
Revista Brasileira De Parasitologia Veterinaria, 2020
Revista Brasileira de Parasitologia Veterinária, 2020
Cattle tick fever (CTF) causes significant economic losses in the livestock sector. The pathogeni... more Cattle tick fever (CTF) causes significant economic losses in the livestock sector. The pathogenic action of the hemoparasites is associated with anemia, weight loss, abortion and reduced productivity, which result with animal death. Programs to prevent CTF involve several procedures, including immunization, chemoprophylaxis and use of ectoparasiticides, together with the vector control in the environment. The objective of this study was to report an acute outbreak of CTF in a group of 157 Hereford cattle from a farm without presence of the vector, that were moved to a farm in the same state with a high tick infestation (Rhipicephalus microplus). On the day before the transportation, the animals received a chemoprophylaxis with imidocarb dipropionate (3 mg/kg, SC), which was repeated 21 days after the first application. After 42 days, some animals showed signs compatible with CTF, which was confirmed through clinical examination, necropsy, histopathological and hemoparasitological a...
Acta Scientiae Veterinariae, 2019
Background: In various regions of Brazil, horses and cattle are considered the most susceptible a... more Background: In various regions of Brazil, horses and cattle are considered the most susceptible animals to plant poisoning. The plants of the genus Senecio are the most important in Rio Grande do Sul because they have the active principle known as the pyrrolizidine alkaloid. Its diagnosis is made through epidemiology, clinical signs and histopathological analysis, either of the tissues obtained by biopsy or necropsy. The objective of this study was to report and characterize the epidemiological, clinical and anatomopathological findings of three cases of natural poisoning by Senecio brasiliensis in horses assisted at the Hospital Veterinário (HV) of the Universidade de Passo Fundo (UPF).Cases: Three traction horses, two males and one female, were admitted at the HV-UPF for clinical care. The animals were presenting anorexia, weight loss, dysmetria, proprioceptive deficit and signs suggestive of colic. The epidemiological study revealed that the sites where these animals were located...
Arquivo Brasileiro de Medicina Veterinária e Zootecnia, 2019
The aim of this study was to evaluate the components of milk and mammary gland health of Criollo ... more The aim of this study was to evaluate the components of milk and mammary gland health of Criollo mares. A total of 12 mares coming from a farm in southern Brazil were used. Samples of milk were taken from each mare every two weeks up to 180 days of lactation. The characteristics analyzed were fat, protein, lactose, total solids, somatic cell count (SCC) and total bacterial count (TBC). In relation to the health of the udder and the milk of the mares, the SCC was 24.1 x 103cells / ml and TBC was 44 x 103CFU / ml, while the average of milk components was 0.57% fat, 1.95% protein, 6.71% lactose and 9.24% total solids. Stage of lactation and individual characteristics may influence the level of milk components. The low SCC and TBC found in the Criollo breed mares’ milk ensure the quality of their milk compared to other species.
Journal of Equine Veterinary Science, Jul 1, 2011
Abstract We designed an experiment to determine the concentrations of a marker of lipid peroxidat... more Abstract We designed an experiment to determine the concentrations of a marker of lipid peroxidation in erythrocytes of horses submitted to jumping competitions. Erythrocytes of exercised horses showed a significant increase in the concentration of thiobarbituric acid-reactive species content immediately after exercise (P&amp;amp;amp;amp;lt;. 001), which returned to normal levels 24 hours after exercise. Nonprotein sulfhydryl groups and superoxide dismutase activity (EC 1.15. 1.1) in erythrocytes were significantly higher 24 hours after exercise, as ...
Acta Scientiae Veterinariae, 2017
Background: Lymphoma, although rare, is the most common hematopoietic neoplasia in horses. The ov... more Background: Lymphoma, although rare, is the most common hematopoietic neoplasia in horses. The overall incidence of lymphoma is between 1.3-2.8% of all equine neoplasia and it has a prevalence of 0.002-0.5% in the equine population. Lymphoma can be classified as multicentric, alimentary, mediastinal, cutaneous and solitary. The cutaneous is the rarest form and it usually presents with multifocal skin lesions, with no other clinical signs. The diagnoses is accomplished by histopathological examination of a biopsy or cytological examination of a fine needle aspirate. The aim of the current study is to report a case of the rarest form of equine lymphoma, the cutaneous.Case: An 8-year-old equine female, Quarter Mile, was evaluated due to volume’s increase and subcutaneous nodules disseminated along the body. These lesions developed gradually during 2 years. The mare was used for ridding, it was kept in the field with 10 other equines and was the only one affected. The mare was vaccinate...
Arquivo Brasileiro de Medicina Veterinária e Zootecnia
This study aimed to determine the impact of different post-partum disorders on milk yield and com... more This study aimed to determine the impact of different post-partum disorders on milk yield and composition. One hundred and fifteen Holstein cows from a commercial dairy farm located in the state of Rio Grande do Sul in southern Brazil were monitored up to 62 days post-partum. During this period, body condition score evaluation and animal clinical examination were conducted. Percentages of fat, protein, and lactose, as well as somatic cells score, were determined in milk samples. The AST activity and concentrations of NEFA, calcium, and BHBA, were analyzed in blood samples. The occurrence of clinical disorders was identified in 30 (26%) cows. Subclinical disorders were identified in 64 (56%) cows. Only 21 (18%) cows did not suffer any kind of disorder within the studied period. In this study, no significant differences were found in milk production, protein, and somatic cell count in clinical, subclinical, and healthy cows. Milk fat and the fat: protein quotient (F:P) were higher in ...
Research, Society and Development
Guttural pouch empyema is usually a consequence of upper respiratory tract infections, especially... more Guttural pouch empyema is usually a consequence of upper respiratory tract infections, especially those caused by Streptococcus equi. In adult horses, empyema is a common disease, whereas considered rare in foals. The aim of this work was to report a case of unilateral guttural pouch empyema in a filly, with a focus on diagnostic and treatment approaches. A 1-month-old filly, 68 kg, Mangalarga Marchador, was admitted because of respiratory distress and enlargement caudally in the head. Clinical examination revealed dyspnea, dysphagia, lymphadenopathy, unilateral enlargement in the retropharyngeal area, and mucopurulent nasal discharge. Further, endoscopic examination confirmed the presence of purulent material inside the left guttural pouch and a diagnosis of empyema was arrived at. Drainage was performed surgically, a catheter was inserted for guttural pouch lavage. The animal received bromexin, dexamethasone, flunixin meglumine, ceftiofur, probiotics, vitamin complexes, and ringer...
Acta Scientiae Veterinariae
Background: Equine pituitary pars intermedia dysfunction, also known as equine Cushing’s syndrome... more Background: Equine pituitary pars intermedia dysfunction, also known as equine Cushing’s syndrome, is a neurodegenerative disease. An important risk factor for Cushing’s is advanced aging and it is the most common endocrine disorder in older horses. The prevalence in horses aged over 10 and 15 years is reported as 9.3% and 21%, respectively. Due to the slow progressive nature of the disease, seasonal variation in hormone output and overlapping endocrine response to other events, accurate diagnosis is challenging. The diagnosis requires the combination of anamnesis, clinical signs, in addition to laboratory tests results. This study aimed to report Cushing’s syndrome in a Crioulo breed horse focusing on diagnostic methods.Case: A 13-year-old male Crioulo breed, orchiectomized, was attended at the Universidade de Passo Fundo (UPF), in Passo Fundo, RS, Brazil. The owner reported that the animal had progressive weight loss and coat abnormal growth, with curly appearance. From visual ins...
O casco e um importante componente do aparelho locomotor dos equinos e sua ma conformacao pode ac... more O casco e um importante componente do aparelho locomotor dos equinos e sua ma conformacao pode acarretar uma serie de patologias. O presente trabalho avaliou o equilibrio podal externo e interno dos cascos dos membros toracicos de 58 equinos (34 machos e 24 femeas) com idade media de 6,5 anos (variando entre 2,5 a 15 anos), da raca Crioula utilizados em provas de laco no norte do Rio Grande do Sul. Foram determinadas o comprimento medio de pinca, ângulo do casco comprimento de talao lateral e medial, ângulo palmar da terceira falange (P3), espessura da sola e distância media do ponto de quebra (DBO). Os valores me- dios obtidos foram: comprimento medio de pinca de 9,21 ± 0,93 cm, ângulo do casco de 51,8 ± 3,5o, comprimento de talao lateral de 4,94 ± 1,5 cm medial de 4,95 ± 1,5 cm, ângulo da P3 4,95o ± 2,46 espessura de sola de 22,0 ± 5,98 mm e DBO de 33, 6 ± 7,48 mm. Os problemas de equilibrio mais encontrados foram pincas longas (89,7%), DBO longo (67,2%), taloes escorridos (48,3%)...
Cataventos Revista De Extensao Da Universidade De Cruz Alta, Oct 29, 2013
Cataventos Revista De Extensao Da Universidade De Cruz Alta, 2010
Ciência Animal Brasileira, 2011
Journal of Equine Veterinary Science, 2011
Abstract We designed an experiment to determine the concentrations of a marker of lipid peroxidat... more Abstract We designed an experiment to determine the concentrations of a marker of lipid peroxidation in erythrocytes of horses submitted to jumping competitions. Erythrocytes of exercised horses showed a significant increase in the concentration of thiobarbituric acid-reactive species content immediately after exercise (P&amp;amp;amp;amp;lt;. 001), which returned to normal levels 24 hours after exercise. Nonprotein sulfhydryl groups and superoxide dismutase activity (EC 1.15. 1.1) in erythrocytes were significantly higher 24 hours after exercise, as ...