Shade availability on pasture does not affect semen characteristics of Brahman bulls (Bos taurus indicus)
| Autor(a) principal: | |
|---|---|
| Data de Publicação: | 2021 |
| Outros Autores: | , , , , , , |
| Tipo de documento: | Artigo |
| Idioma: | eng |
| Título da fonte: | Brazilian Journal of Veterinary Medicine |
| Texto Completo: | https://rbmv.org/BJVM/article/view/1221 |
Resumo: | Testicular degeneration by heat is the leading cause of infertility in bulls. Beef cattle are generally farmed under hot and humid conditions, and consequently, the thermotolerance of each breed must be considered in their natural environment. This study aimed to evaluate the reproductive characteristics of Brahman bulls maintained in the grazing system, with or without shadow availability. Ten Brahman bulls aging between 24 and 30 months were allocated in two different paddocks, with or without shadow availability. The heat tolerance test was performed on three non-consecutive typical summer days. The semen samples were collected at four times points in a 14 days interval. The climate conditions were monitored throughout the experiment; and clinical evaluation, testicular consistence and scrotal circumference were measured before every semen collection. In addition, semen was evaluated regarding volume, aspect, turbulence, motility, straight movement, sperm concentration, and morphological exam. The studied Brahman bulls showed a high thermolysis capacity, high heat tolerance, and no differences in semen quality were observed between groups. |
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Shade availability on pasture does not affect semen characteristics of Brahman bulls (Bos taurus indicus)Presença de sombra a pasto não afeta as características espermáticas de touros da raça Brahman (Bos taurus indicus)environment, heat stress, thermotolerance, breeding soundness evaluation, zebu.chave: ambiente, estresse por calor, termotolerância, avaliação reprodutiva, zebu.Testicular degeneration by heat is the leading cause of infertility in bulls. Beef cattle are generally farmed under hot and humid conditions, and consequently, the thermotolerance of each breed must be considered in their natural environment. This study aimed to evaluate the reproductive characteristics of Brahman bulls maintained in the grazing system, with or without shadow availability. Ten Brahman bulls aging between 24 and 30 months were allocated in two different paddocks, with or without shadow availability. The heat tolerance test was performed on three non-consecutive typical summer days. The semen samples were collected at four times points in a 14 days interval. The climate conditions were monitored throughout the experiment; and clinical evaluation, testicular consistence and scrotal circumference were measured before every semen collection. In addition, semen was evaluated regarding volume, aspect, turbulence, motility, straight movement, sperm concentration, and morphological exam. The studied Brahman bulls showed a high thermolysis capacity, high heat tolerance, and no differences in semen quality were observed between groups.A degeneração testicular causada pelo calor é a principal causa de infertilidade em touros. Bovinos de corte geralmente são criados em condições de calor e umidade, e, consequentemente, a termotolerância de cada raça deve ser considerada em seu ambiente natural. O presente trabalho teve como objetivo avaliar as características reprodutivas de touros da raça Brahman mantidos em sistema de pastejo, com ou sem disponibilidade de sombra. Dez touros Brahman com idades entre 24 e 30 meses foram alocados em dois piquetes diferentes, com ou sem disponibilidade de sombra. O teste de tolerância ao calor foi realizado em três dias típicos de verão não consecutivos. As amostras de sêmen foram coletadas em quatro momentos em intervalos de 14 dias. As condições climáticas foram monitoradas durante todo o período experimental; e a avaliação clínica, consistência testicular e a circunferência escrotal foram avaliadas antes de cada coleta de sêmen. Ainda, o sêmen foi avaliado quanto ao volume, aspecto, turbulência, motilidade, vigor, concentração espermática e exame morfológico. Os touros estudados da raça Brahman apresentaram alta capacidade de termólise, alta tolerância ao calor, e não foram observadas diferenças na qualidade do sêmen entre os grupos.Sociedade de Medicina Veterinária do Estado do Rio de Janeiro.2021-11-28info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionpeer reviewedAvaliado pelos paresapplication/pdftext/xmlhttps://rbmv.org/BJVM/article/view/122110.29374/2527-2179.bjvm003721Brazilian Journal of Veterinary Medicine; Vol. 43 No. 1 (2021); e003721Revista Brasileira de Medicina Veterinária; v. 43 n. 1 (2021); e0037212527-21790100-2430reponame:Brazilian Journal of Veterinary Medicineinstname:Sociedade de Medicina Veterinária do Estado do Rio de Janeiro (SOMVERJ)instacron:SBMVenghttps://rbmv.org/BJVM/article/view/1221/1106https://rbmv.org/BJVM/article/view/1221/1225Copyright (c) 2021 Paulo Fantinato Neto, Ana Carina Alves Pereira de Mira Geraldo , Thais Mayra da Cunha Leme dos Santos, Reíssa Alves Vilela, Adriana Moraes de Oliveira Tribucci, André Furugen Cesar de Andrade, Rubens Paes Arruda, Evado Antonio Lencioni Tittohttps://creativecommons.org/licenses/by/4.0info:eu-repo/semantics/openAccessNeto, Paulo FantinatoGeraldo , Ana Carina Alves Pereira de Mirados Santos, Thais Mayra da Cunha LemeVilela, Reíssa AlvesTribucci, Adriana Moraes de Oliveirade Andrade, André Furugen CesarArruda, Rubens PaesTitto, Evado Antonio Lencioni2022-06-27T13:23:12Zoai:ojs.rbmv.org:article/1221Revistahttps://rbmv.org/BJVMONGhttps://rbmv.org/BJVM/oaicontato.rbmv@gmail.com2527-21790100-2430opendoar:2022-06-27T13:23:12Brazilian Journal of Veterinary Medicine - Sociedade de Medicina Veterinária do Estado do Rio de Janeiro (SOMVERJ)false |
| dc.title.none.fl_str_mv |
Shade availability on pasture does not affect semen characteristics of Brahman bulls (Bos taurus indicus) Presença de sombra a pasto não afeta as características espermáticas de touros da raça Brahman (Bos taurus indicus) |
| title |
Shade availability on pasture does not affect semen characteristics of Brahman bulls (Bos taurus indicus) |
| spellingShingle |
Shade availability on pasture does not affect semen characteristics of Brahman bulls (Bos taurus indicus) Neto, Paulo Fantinato environment, heat stress, thermotolerance, breeding soundness evaluation, zebu. chave: ambiente, estresse por calor, termotolerância, avaliação reprodutiva, zebu. |
| title_short |
Shade availability on pasture does not affect semen characteristics of Brahman bulls (Bos taurus indicus) |
| title_full |
Shade availability on pasture does not affect semen characteristics of Brahman bulls (Bos taurus indicus) |
| title_fullStr |
Shade availability on pasture does not affect semen characteristics of Brahman bulls (Bos taurus indicus) |
| title_full_unstemmed |
Shade availability on pasture does not affect semen characteristics of Brahman bulls (Bos taurus indicus) |
| title_sort |
Shade availability on pasture does not affect semen characteristics of Brahman bulls (Bos taurus indicus) |
| author |
Neto, Paulo Fantinato |
| author_facet |
Neto, Paulo Fantinato Geraldo , Ana Carina Alves Pereira de Mira dos Santos, Thais Mayra da Cunha Leme Vilela, Reíssa Alves Tribucci, Adriana Moraes de Oliveira de Andrade, André Furugen Cesar Arruda, Rubens Paes Titto, Evado Antonio Lencioni |
| author_role |
author |
| author2 |
Geraldo , Ana Carina Alves Pereira de Mira dos Santos, Thais Mayra da Cunha Leme Vilela, Reíssa Alves Tribucci, Adriana Moraes de Oliveira de Andrade, André Furugen Cesar Arruda, Rubens Paes Titto, Evado Antonio Lencioni |
| author2_role |
author author author author author author author |
| dc.contributor.author.fl_str_mv |
Neto, Paulo Fantinato Geraldo , Ana Carina Alves Pereira de Mira dos Santos, Thais Mayra da Cunha Leme Vilela, Reíssa Alves Tribucci, Adriana Moraes de Oliveira de Andrade, André Furugen Cesar Arruda, Rubens Paes Titto, Evado Antonio Lencioni |
| dc.subject.por.fl_str_mv |
environment, heat stress, thermotolerance, breeding soundness evaluation, zebu. chave: ambiente, estresse por calor, termotolerância, avaliação reprodutiva, zebu. |
| topic |
environment, heat stress, thermotolerance, breeding soundness evaluation, zebu. chave: ambiente, estresse por calor, termotolerância, avaliação reprodutiva, zebu. |
| description |
Testicular degeneration by heat is the leading cause of infertility in bulls. Beef cattle are generally farmed under hot and humid conditions, and consequently, the thermotolerance of each breed must be considered in their natural environment. This study aimed to evaluate the reproductive characteristics of Brahman bulls maintained in the grazing system, with or without shadow availability. Ten Brahman bulls aging between 24 and 30 months were allocated in two different paddocks, with or without shadow availability. The heat tolerance test was performed on three non-consecutive typical summer days. The semen samples were collected at four times points in a 14 days interval. The climate conditions were monitored throughout the experiment; and clinical evaluation, testicular consistence and scrotal circumference were measured before every semen collection. In addition, semen was evaluated regarding volume, aspect, turbulence, motility, straight movement, sperm concentration, and morphological exam. The studied Brahman bulls showed a high thermolysis capacity, high heat tolerance, and no differences in semen quality were observed between groups. |
| publishDate |
2021 |
| dc.date.none.fl_str_mv |
2021-11-28 |
| dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion peer reviewed Avaliado pelos pares |
| format |
article |
| status_str |
publishedVersion |
| dc.identifier.uri.fl_str_mv |
https://rbmv.org/BJVM/article/view/1221 10.29374/2527-2179.bjvm003721 |
| url |
https://rbmv.org/BJVM/article/view/1221 |
| identifier_str_mv |
10.29374/2527-2179.bjvm003721 |
| dc.language.iso.fl_str_mv |
eng |
| language |
eng |
| dc.relation.none.fl_str_mv |
https://rbmv.org/BJVM/article/view/1221/1106 https://rbmv.org/BJVM/article/view/1221/1225 |
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https://creativecommons.org/licenses/by/4.0 info:eu-repo/semantics/openAccess |
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https://creativecommons.org/licenses/by/4.0 |
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openAccess |
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application/pdf text/xml |
| dc.publisher.none.fl_str_mv |
Sociedade de Medicina Veterinária do Estado do Rio de Janeiro. |
| publisher.none.fl_str_mv |
Sociedade de Medicina Veterinária do Estado do Rio de Janeiro. |
| dc.source.none.fl_str_mv |
Brazilian Journal of Veterinary Medicine; Vol. 43 No. 1 (2021); e003721 Revista Brasileira de Medicina Veterinária; v. 43 n. 1 (2021); e003721 2527-2179 0100-2430 reponame:Brazilian Journal of Veterinary Medicine instname:Sociedade de Medicina Veterinária do Estado do Rio de Janeiro (SOMVERJ) instacron:SBMV |
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Sociedade de Medicina Veterinária do Estado do Rio de Janeiro (SOMVERJ) |
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SBMV |
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SBMV |
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Brazilian Journal of Veterinary Medicine |
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Brazilian Journal of Veterinary Medicine |
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Brazilian Journal of Veterinary Medicine - Sociedade de Medicina Veterinária do Estado do Rio de Janeiro (SOMVERJ) |
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contato.rbmv@gmail.com |
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1798313111647682560 |