Thermal stress in buffalo bulls (Bubalus bubalis): Evaluation of reproductive characteristics
Autor(a) principal: | |
---|---|
Data de Publicação: | 2010 |
Outros Autores: | , , |
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. |
id |
UNSP_95733dd4acb438107fa00c3e19b5222c |
---|---|
oai_identifier_str |
oai:repositorio.unesp.br:11449/227829 |
network_acronym_str |
UNSP |
network_name_str |
Repositório Institucional da UNESP |
repository_id_str |
2946 |
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 |
_version_ |
1813546602275536896 |