Hemicastration in Chilean rodeo stallions in competition

dc.creatorMuñoz, Lisandro
dc.creatorBlu, Consuelo
dc.creatorOrtiz, Reinaldo
dc.creatorCruces, Jaime
dc.creatorCordero, María
dc.creatorBriones, Mario
dc.date2019-05-10
dc.date.accessioned2022-12-20T19:51:06Z
dc.date.available2022-12-20T19:51:06Z
dc.identifierhttp://revistas.uach.cl/index.php/australjvs/article/view/5060
dc.identifier10.4067/S0719-81322019000200101
dc.identifier.urihttps://repositorioslatinoamericanos.uchile.cl/handle/2250/5422275
dc.descriptionThe objectives of this study were: a) establish the frequency, age and reason for hemicastration, b) determine the most frequently removed testicle and c) compare the athletic performance between unilaterally castrated and intact Chilean rodeo stallions. Two hundred and sixteen Chilean Horse stallions participating in the 2016 Chilean rodeo qualifying rounds and National Championship (CRNC) were evaluated. Owners and/or riders were interrogated about age, hemicastration, age at hemicastration, removed testicle, reason and effects of hemicastration on athletic performance of stallions. The statistical analysis was descriptive and the results were expressed in means and percentages. Chi-square test was used to compare the performance between unilaterally castrated and intact stallions. Performance was qualified based on qualification to the CRNC and ultimately participation in the Champion series. Fifty-three percent of the stallions were unilaterally castrated (47% left testicle; 53% right testicle) (P>0.05). Mean age of hemicastration was 6.97±2.24 years. Main reasons reported for hemicastration were: traumatic (76%), increased volume (13%) and preventive (11%), but not all of them with medical confirmation. Seven owners or riders were unaware of the reason of hemicastration. Forty-six percent of the qualified stallions to the CRNC (P>0.05) and 29% of the qualified to the Champion series were unilaterally castrated (P=0.0122). It was concluded that half of the 2016 elite Chilean Horse stallions were unilaterally castrated, without preference for a testicle, after the age of initiation of sporting activity. A 43.5% of hemicastration in Chilean rodeo stallions are performed preventively or based on subjective assessments of owners and riders without veterinary diagnosis, however, it is unclear that hemicastration affected the athletic performance in these cases.en-US
dc.descriptionThe objectives of this study were: a) establish the frequency, age and reason for hemicastration, b) determine the most frequently removed testicle and c) compare the athletic performance between unilaterally castrated and intact Chilean rodeo stallions. Two hundred and sixteen Chilean Horse stallions participating in the 2016 Chilean rodeo qualifying rounds and National Championship (CRNC) were evaluated. Owners and/or riders were interrogated about age, hemicastration, age at hemicastration, removed testicle, reason and effects of hemicastration on athletic performance of stallions. The statistical analysis was descriptive and the results were expressed in means and percentages. Chi-square test was used to compare the performance between unilaterally castrated and intact stallions. Performance was qualified based on qualification to the CRNC and ultimately participation in the Champion series. Fifty-three percent of the stallions were unilaterally castrated (47% left testicle; 53% right testicle) (P>0.05). Mean age of hemicastration was 6.97±2.24 years. Main reasons reported for hemicastration were: traumatic (76%), increased volume (13%) and preventive (11%), but not all of them with medical confirmation. Seven owners or riders were unaware of the reason of hemicastration. Forty-six percent of the qualified stallions to the CRNC (P>0.05) and 29% of the qualified to the Champion series were unilaterally castrated (P=0.0122). It was concluded that half of the 2016 elite Chilean Horse stallions were unilaterally castrated, without preference for a testicle, after the age of initiation of sporting activity. A 43.5% of hemicastration in Chilean rodeo stallions are performed preventively or based on subjective assessments of owners and riders without veterinary diagnosis, however, it is unclear that hemicastration affected the athletic performance in these cases.es-ES
dc.formatapplication/pdf
dc.languageeng
dc.publisherFaculty of Veterinary Sciences - Universidad Austral de Chilees-ES
dc.relationhttp://revistas.uach.cl/index.php/australjvs/article/view/5060/5749
dc.rightsDerechos de autor 2019 Austral Journal of Veterinary Scienceses-ES
dc.sourceAustral Journal of Veterinary Sciences; Vol. 51 No. 2 (2019); 101-104en-US
dc.sourceAustral Journal of Veterinary Sciences; Vol. 51 Núm. 2 (2019); 101-104es-ES
dc.source0719-8132
dc.source0719-8000
dc.subjecthemicastrationes-ES
dc.subjectstallionses-ES
dc.subjectChilean rodeoes-ES
dc.subjecthemicastrationen-US
dc.subjectstallionsen-US
dc.subjectChilean rodeoen-US
dc.titleHemicastration in Chilean rodeo stallions in competitionen-US
dc.titleHemicastration in Chilean rodeo stallions in competitiones-ES
dc.typeinfo:eu-repo/semantics/article
dc.typeinfo:eu-repo/semantics/publishedVersion


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