Thermal stress in buffalo bulls (Bubalus bubalis): Evaluation of reproductive characteristics

Detalhes bibliográficos
Autor(a) principal: Chacur, M. G.M. [UNESP]
Data de Publicação: 2010
Outros Autores: Oba, E. [UNESP], Ferreira, J. C.P. [UNESP], Velloso, N. M. [UNESP]
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UNESP
Texto Completo: http://hdl.handle.net/11449/227829
Resumo: The objective of the experiment was to measure the changes produced by heat on reproductive efficiency of buffalo bulls. For this, we used eight male crossbred (Murrah x Mediterranean), with approximately three years old. The animals were housed in a climate chamber and subsequently divided into two groups: control (CG) and heat stress (SG). After an adjustment period, bulls of SG were subjected to temperatures of 39 ° C, while the CG were maintained at room temperature of 22.5 ° C for a period of 54 days. We observed the reaction time (time of courting the female until ejaculation) of each animal, as well as the number of false mating until the mating be successfully performed. The perimeter and consistency of the testes and seminal characteristics were assessed weekly. In the same period and frequency, ultrasound scans were performed to measure the length and width of the testis, epididymis and spermatic cords. Under the experimental conditions, the only parameter evaluated that showed statistical difference between treatments was the testicular consistency, and SG animals displayed less consistency than those of CG.
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spelling Thermal stress in buffalo bulls (Bubalus bubalis): Evaluation of reproductive characteristicsBuffaloHeat stressMating behaviourSemenThe objective of the experiment was to measure the changes produced by heat on reproductive efficiency of buffalo bulls. For this, we used eight male crossbred (Murrah x Mediterranean), with approximately three years old. The animals were housed in a climate chamber and subsequently divided into two groups: control (CG) and heat stress (SG). After an adjustment period, bulls of SG were subjected to temperatures of 39 ° C, while the CG were maintained at room temperature of 22.5 ° C for a period of 54 days. We observed the reaction time (time of courting the female until ejaculation) of each animal, as well as the number of false mating until the mating be successfully performed. The perimeter and consistency of the testes and seminal characteristics were assessed weekly. In the same period and frequency, ultrasound scans were performed to measure the length and width of the testis, epididymis and spermatic cords. Under the experimental conditions, the only parameter evaluated that showed statistical difference between treatments was the testicular consistency, and SG animals displayed less consistency than those of CG.School of Veterinary Medicine, Universidade do Oeste Paulista - UNOESTEDepartment of Animal Reproduction and Veterinary Radiology, School of Veterinary Medicine and Animal Science, Univ Estadual Paulista - UNESPDepartment of Animal Reproduction and Veterinary Radiology, School of Veterinary Medicine and Animal Science, Univ Estadual Paulista - UNESPSchool of Veterinary Medicine, Universidade do Oeste Paulista - UNOESTEUniversidade Estadual Paulista (UNESP)Chacur, M. G.M. [UNESP]Oba, E. [UNESP]Ferreira, J. C.P. [UNESP]Velloso, N. M. [UNESP]2022-04-29T07:20:22Z2022-04-29T07:20:22Z2010-01-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article978-980Revista Veterinaria, v. 21, n. SUPPL.1, p. 978-980, 2010.1669-68401668-4834http://hdl.handle.net/11449/2278292-s2.0-84904756736Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengRevista Veterinariainfo:eu-repo/semantics/openAccess2024-09-09T14:05:52Zoai:repositorio.unesp.br:11449/227829Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestrepositoriounesp@unesp.bropendoar:29462024-09-09T14:05:52Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false
dc.title.none.fl_str_mv Thermal stress in buffalo bulls (Bubalus bubalis): Evaluation of reproductive characteristics
title Thermal stress in buffalo bulls (Bubalus bubalis): Evaluation of reproductive characteristics
spellingShingle Thermal stress in buffalo bulls (Bubalus bubalis): Evaluation of reproductive characteristics
Chacur, M. G.M. [UNESP]
Buffalo
Heat stress
Mating behaviour
Semen
title_short Thermal stress in buffalo bulls (Bubalus bubalis): Evaluation of reproductive characteristics
title_full Thermal stress in buffalo bulls (Bubalus bubalis): Evaluation of reproductive characteristics
title_fullStr Thermal stress in buffalo bulls (Bubalus bubalis): Evaluation of reproductive characteristics
title_full_unstemmed Thermal stress in buffalo bulls (Bubalus bubalis): Evaluation of reproductive characteristics
title_sort Thermal stress in buffalo bulls (Bubalus bubalis): Evaluation of reproductive characteristics
author Chacur, M. G.M. [UNESP]
author_facet Chacur, M. G.M. [UNESP]
Oba, E. [UNESP]
Ferreira, J. C.P. [UNESP]
Velloso, N. M. [UNESP]
author_role author
author2 Oba, E. [UNESP]
Ferreira, J. C.P. [UNESP]
Velloso, N. M. [UNESP]
author2_role author
author
author
dc.contributor.none.fl_str_mv School of Veterinary Medicine, Universidade do Oeste Paulista - UNOESTE
Universidade Estadual Paulista (UNESP)
dc.contributor.author.fl_str_mv Chacur, M. G.M. [UNESP]
Oba, E. [UNESP]
Ferreira, J. C.P. [UNESP]
Velloso, N. M. [UNESP]
dc.subject.por.fl_str_mv Buffalo
Heat stress
Mating behaviour
Semen
topic Buffalo
Heat stress
Mating behaviour
Semen
description The objective of the experiment was to measure the changes produced by heat on reproductive efficiency of buffalo bulls. For this, we used eight male crossbred (Murrah x Mediterranean), with approximately three years old. The animals were housed in a climate chamber and subsequently divided into two groups: control (CG) and heat stress (SG). After an adjustment period, bulls of SG were subjected to temperatures of 39 ° C, while the CG were maintained at room temperature of 22.5 ° C for a period of 54 days. We observed the reaction time (time of courting the female until ejaculation) of each animal, as well as the number of false mating until the mating be successfully performed. The perimeter and consistency of the testes and seminal characteristics were assessed weekly. In the same period and frequency, ultrasound scans were performed to measure the length and width of the testis, epididymis and spermatic cords. Under the experimental conditions, the only parameter evaluated that showed statistical difference between treatments was the testicular consistency, and SG animals displayed less consistency than those of CG.
publishDate 2010
dc.date.none.fl_str_mv 2010-01-01
2022-04-29T07:20:22Z
2022-04-29T07:20:22Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv Revista Veterinaria, v. 21, n. SUPPL.1, p. 978-980, 2010.
1669-6840
1668-4834
http://hdl.handle.net/11449/227829
2-s2.0-84904756736
identifier_str_mv Revista Veterinaria, v. 21, n. SUPPL.1, p. 978-980, 2010.
1669-6840
1668-4834
2-s2.0-84904756736
url http://hdl.handle.net/11449/227829
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Revista Veterinaria
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv 978-980
dc.source.none.fl_str_mv Scopus
reponame:Repositório Institucional da UNESP
instname:Universidade Estadual Paulista (UNESP)
instacron:UNESP
instname_str Universidade Estadual Paulista (UNESP)
instacron_str UNESP
institution UNESP
reponame_str Repositório Institucional da UNESP
collection Repositório Institucional da UNESP
repository.name.fl_str_mv Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)
repository.mail.fl_str_mv repositoriounesp@unesp.br
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