Physiological responses and animal behavior in Bonsmara-Hereford crosses vs. Hereford purebred on environment stress
Autor(a) principal: | |
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Data de Publicação: | 2018 |
Outros Autores: | , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Scientia Agrícola (Online) |
Texto Completo: | https://www.revistas.usp.br/sa/article/view/147487 |
Resumo: | Adaptative traits (rectal temperature-RT, respiratory rate-RR) and grazing behavior (Grazing, Ruminating and Rest time, and Sun or Shade time) of Bonsmara-Hereford crossbred-BH, n = 15, and purebred Hereford-HH, n = 18, yearling heifers, in a grazing system of Uruguay. Environment characterization was made using THIadjusted by radiation and wind speed (no, mild, and severe heat weaves), and the comprehensive climatic index-CCI (no, middle, moderate and severe stress). Adaptative traits were measured twice a day, weekly, in two consecutive days in summer and winter at 08h00 and 16h00. Grazing behavior was observed from 07h00 to 21h00 each 600 s twice in summer. The records were analyzed using a mixed model. Significant effect of genotype was observed in mild heat waves for RR and RT in the afternoon (BH lower than HH). For CCI in a.m., the RR was lower than HH in BH in severe stress, while in p.m., the RR was lower in all of CCI levels. RT in p.m. in moderate and severe was lower in BH than in HH. In winter, no differences were found. In grazing behavior, HH rests longer than BH doe; also, HH spends more time in the shade (34 %) than BH does (22 %). BH genotype showed better thermoregulation and grazing behavior at higher temperatures compared to HH. |
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Scientia Agrícola (Online) |
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Physiological responses and animal behavior in Bonsmara-Hereford crosses vs. Hereford purebred on environment stressbeef cattlegrazing behaviorthermoregulationbioclimatology Adaptative traits (rectal temperature-RT, respiratory rate-RR) and grazing behavior (Grazing, Ruminating and Rest time, and Sun or Shade time) of Bonsmara-Hereford crossbred-BH, n = 15, and purebred Hereford-HH, n = 18, yearling heifers, in a grazing system of Uruguay. Environment characterization was made using THIadjusted by radiation and wind speed (no, mild, and severe heat weaves), and the comprehensive climatic index-CCI (no, middle, moderate and severe stress). Adaptative traits were measured twice a day, weekly, in two consecutive days in summer and winter at 08h00 and 16h00. Grazing behavior was observed from 07h00 to 21h00 each 600 s twice in summer. The records were analyzed using a mixed model. Significant effect of genotype was observed in mild heat waves for RR and RT in the afternoon (BH lower than HH). For CCI in a.m., the RR was lower than HH in BH in severe stress, while in p.m., the RR was lower in all of CCI levels. RT in p.m. in moderate and severe was lower in BH than in HH. In winter, no differences were found. In grazing behavior, HH rests longer than BH doe; also, HH spends more time in the shade (34 %) than BH does (22 %). BH genotype showed better thermoregulation and grazing behavior at higher temperatures compared to HH.Universidade de São Paulo. Escola Superior de Agricultura Luiz de Queiroz2018-12-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://www.revistas.usp.br/sa/article/view/14748710.1590/1678-992x-2017-0042Scientia Agricola; v. 75 n. 6 (2018); 479-485Scientia Agricola; Vol. 75 Núm. 6 (2018); 479-485Scientia Agricola; Vol. 75 No. 6 (2018); 479-4851678-992X0103-9016reponame:Scientia Agrícola (Online)instname:Universidade de São Paulo (USP)instacron:USPenghttps://www.revistas.usp.br/sa/article/view/147487/141003Copyright (c) 2018 Scientia Agricolainfo:eu-repo/semantics/openAccessTaborda, Paula Alicia BatistaSaravia, Celmira TomasinaEspasandin, Ana Carolina2018-06-25T17:28:21Zoai:revistas.usp.br:article/147487Revistahttp://revistas.usp.br/sa/indexPUBhttps://old.scielo.br/oai/scielo-oai.phpscientia@usp.br||alleoni@usp.br1678-992X0103-9016opendoar:2018-06-25T17:28:21Scientia Agrícola (Online) - Universidade de São Paulo (USP)false |
dc.title.none.fl_str_mv |
Physiological responses and animal behavior in Bonsmara-Hereford crosses vs. Hereford purebred on environment stress |
title |
Physiological responses and animal behavior in Bonsmara-Hereford crosses vs. Hereford purebred on environment stress |
spellingShingle |
Physiological responses and animal behavior in Bonsmara-Hereford crosses vs. Hereford purebred on environment stress Taborda, Paula Alicia Batista beef cattle grazing behavior thermoregulation bioclimatology |
title_short |
Physiological responses and animal behavior in Bonsmara-Hereford crosses vs. Hereford purebred on environment stress |
title_full |
Physiological responses and animal behavior in Bonsmara-Hereford crosses vs. Hereford purebred on environment stress |
title_fullStr |
Physiological responses and animal behavior in Bonsmara-Hereford crosses vs. Hereford purebred on environment stress |
title_full_unstemmed |
Physiological responses and animal behavior in Bonsmara-Hereford crosses vs. Hereford purebred on environment stress |
title_sort |
Physiological responses and animal behavior in Bonsmara-Hereford crosses vs. Hereford purebred on environment stress |
author |
Taborda, Paula Alicia Batista |
author_facet |
Taborda, Paula Alicia Batista Saravia, Celmira Tomasina Espasandin, Ana Carolina |
author_role |
author |
author2 |
Saravia, Celmira Tomasina Espasandin, Ana Carolina |
author2_role |
author author |
dc.contributor.author.fl_str_mv |
Taborda, Paula Alicia Batista Saravia, Celmira Tomasina Espasandin, Ana Carolina |
dc.subject.por.fl_str_mv |
beef cattle grazing behavior thermoregulation bioclimatology |
topic |
beef cattle grazing behavior thermoregulation bioclimatology |
description |
Adaptative traits (rectal temperature-RT, respiratory rate-RR) and grazing behavior (Grazing, Ruminating and Rest time, and Sun or Shade time) of Bonsmara-Hereford crossbred-BH, n = 15, and purebred Hereford-HH, n = 18, yearling heifers, in a grazing system of Uruguay. Environment characterization was made using THIadjusted by radiation and wind speed (no, mild, and severe heat weaves), and the comprehensive climatic index-CCI (no, middle, moderate and severe stress). Adaptative traits were measured twice a day, weekly, in two consecutive days in summer and winter at 08h00 and 16h00. Grazing behavior was observed from 07h00 to 21h00 each 600 s twice in summer. The records were analyzed using a mixed model. Significant effect of genotype was observed in mild heat waves for RR and RT in the afternoon (BH lower than HH). For CCI in a.m., the RR was lower than HH in BH in severe stress, while in p.m., the RR was lower in all of CCI levels. RT in p.m. in moderate and severe was lower in BH than in HH. In winter, no differences were found. In grazing behavior, HH rests longer than BH doe; also, HH spends more time in the shade (34 %) than BH does (22 %). BH genotype showed better thermoregulation and grazing behavior at higher temperatures compared to HH. |
publishDate |
2018 |
dc.date.none.fl_str_mv |
2018-12-01 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
https://www.revistas.usp.br/sa/article/view/147487 10.1590/1678-992x-2017-0042 |
url |
https://www.revistas.usp.br/sa/article/view/147487 |
identifier_str_mv |
10.1590/1678-992x-2017-0042 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
https://www.revistas.usp.br/sa/article/view/147487/141003 |
dc.rights.driver.fl_str_mv |
Copyright (c) 2018 Scientia Agricola info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
Copyright (c) 2018 Scientia Agricola |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Universidade de São Paulo. Escola Superior de Agricultura Luiz de Queiroz |
publisher.none.fl_str_mv |
Universidade de São Paulo. Escola Superior de Agricultura Luiz de Queiroz |
dc.source.none.fl_str_mv |
Scientia Agricola; v. 75 n. 6 (2018); 479-485 Scientia Agricola; Vol. 75 Núm. 6 (2018); 479-485 Scientia Agricola; Vol. 75 No. 6 (2018); 479-485 1678-992X 0103-9016 reponame:Scientia Agrícola (Online) instname:Universidade de São Paulo (USP) instacron:USP |
instname_str |
Universidade de São Paulo (USP) |
instacron_str |
USP |
institution |
USP |
reponame_str |
Scientia Agrícola (Online) |
collection |
Scientia Agrícola (Online) |
repository.name.fl_str_mv |
Scientia Agrícola (Online) - Universidade de São Paulo (USP) |
repository.mail.fl_str_mv |
scientia@usp.br||alleoni@usp.br |
_version_ |
1800222793861693440 |