Hemicastration in Chilean rodeo stallions in competition

Abstract: The 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 Hor...

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Autores principales:	Muñoz,Lisandro, Blu,Consuelo, Ortiz,Reinaldo, Cruces,Jaime, Cordero,María, Briones,Mario
Lenguaje:	English
Publicado:	Universidad Austral de Chile. Facultad de Ciencias Veterinarias 2019
Materias:	hemicastration stallions Chilean rodeo
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0719-81322019000200101
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id	oai:scielo:S0719-81322019000200101
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spelling	oai:scielo:S0719-813220190002001012019-05-17Hemicastration in Chilean rodeo stallions in competitionMuñoz,LisandroBlu,ConsueloOrtiz,ReinaldoCruces,JaimeCordero,MaríaBriones,Mario hemicastration stallions Chilean rodeo Abstract: The 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.info:eu-repo/semantics/openAccessUniversidad Austral de Chile. Facultad de Ciencias VeterinariasAustral journal of veterinary sciences v.51 n.2 20192019-05-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0719-81322019000200101en10.4067/S0719-81322019000200101
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	hemicastration stallions Chilean rodeo
spellingShingle	hemicastration stallions Chilean rodeo Muñoz,Lisandro Blu,Consuelo Ortiz,Reinaldo Cruces,Jaime Cordero,María Briones,Mario Hemicastration in Chilean rodeo stallions in competition
description	Abstract: The 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.
author	Muñoz,Lisandro Blu,Consuelo Ortiz,Reinaldo Cruces,Jaime Cordero,María Briones,Mario
author_facet	Muñoz,Lisandro Blu,Consuelo Ortiz,Reinaldo Cruces,Jaime Cordero,María Briones,Mario
author_sort	Muñoz,Lisandro
title	Hemicastration in Chilean rodeo stallions in competition
title_short	Hemicastration in Chilean rodeo stallions in competition
title_full	Hemicastration in Chilean rodeo stallions in competition
title_fullStr	Hemicastration in Chilean rodeo stallions in competition
title_full_unstemmed	Hemicastration in Chilean rodeo stallions in competition
title_sort	hemicastration in chilean rodeo stallions in competition
publisher	Universidad Austral de Chile. Facultad de Ciencias Veterinarias
publishDate	2019
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0719-81322019000200101
work_keys_str_mv	AT munozlisandro hemicastrationinchileanrodeostallionsincompetition AT bluconsuelo hemicastrationinchileanrodeostallionsincompetition AT ortizreinaldo hemicastrationinchileanrodeostallionsincompetition AT crucesjaime hemicastrationinchileanrodeostallionsincompetition AT corderomaria hemicastrationinchileanrodeostallionsincompetition AT brionesmario hemicastrationinchileanrodeostallionsincompetition
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Hemicastration in Chilean rodeo stallions in competition

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