Variation in available shaded area changes behaviour parameters in grazing dairy cows during the warm season

Detalhes bibliográficos
Autor(a) principal: Stivanin,Sheila Cristina Bosco
Data de Publicação: 2019
Outros Autores: Werncke,Daíse, Vizzotto,Elissa Forgiarini, Stumpf,Marcelo Tempel, Thaler Neto,André, Fischer,Vivian
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Revista Brasileira de Zootecnia (Online)
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982019000100202
Resumo: ABSTRACT The objective was to investigate the effects of available shaded area on behavioural characteristics of lactating cows during the warm season in the subtropics. Twelve Holstein cows were divided into groups, with 2 (SH2) or 10 m2 (SH10) of available shade per cow (six cows per treatment). The behaviour was recorded when animals were grazing from 09.00 to 16.00 h (GMT −02.00 h) throughout the trial. Data considered in the statistical analysis were restricted to the five days when the maximum temperature was ≥ 25 °C. Cows in the SH10 group had lower panting score, but higher proportions of time in shade and lying down and stayed more time per visit in the shaded area than cows in the SH2 group. Cows in the SH10 group had less events of competition near the water trough and in the shaded area than cows in the SH2 group. The solar radiation threshold that triggered the use of the shade was lower in SH10 than in SH2 group. Hourly proportion of time spent grazing or ruminating differed between shaded areas at specific times. The 2 m2 of available shaded area per cow is sufficient for all cows to enter the shaded area at the same time. In spite of that, 2 m2 of available shaded area per cow negatively affects the proportion of time spent lying and in the shaded area; in addition, it enhances agonistic behaviours between cows when compared with 10 m2 of shade per cow.
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spelling Variation in available shaded area changes behaviour parameters in grazing dairy cows during the warm seasonanimal welfarebehaviourdairy cowsheat stresslactationshadeABSTRACT The objective was to investigate the effects of available shaded area on behavioural characteristics of lactating cows during the warm season in the subtropics. Twelve Holstein cows were divided into groups, with 2 (SH2) or 10 m2 (SH10) of available shade per cow (six cows per treatment). The behaviour was recorded when animals were grazing from 09.00 to 16.00 h (GMT −02.00 h) throughout the trial. Data considered in the statistical analysis were restricted to the five days when the maximum temperature was ≥ 25 °C. Cows in the SH10 group had lower panting score, but higher proportions of time in shade and lying down and stayed more time per visit in the shaded area than cows in the SH2 group. Cows in the SH10 group had less events of competition near the water trough and in the shaded area than cows in the SH2 group. The solar radiation threshold that triggered the use of the shade was lower in SH10 than in SH2 group. Hourly proportion of time spent grazing or ruminating differed between shaded areas at specific times. The 2 m2 of available shaded area per cow is sufficient for all cows to enter the shaded area at the same time. In spite of that, 2 m2 of available shaded area per cow negatively affects the proportion of time spent lying and in the shaded area; in addition, it enhances agonistic behaviours between cows when compared with 10 m2 of shade per cow.Sociedade Brasileira de Zootecnia2019-01-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982019000100202Revista Brasileira de Zootecnia v.48 2019reponame:Revista Brasileira de Zootecnia (Online)instname:Sociedade Brasileira de Zootecnia (SBZ)instacron:SBZ10.1590/rbz4820180316info:eu-repo/semantics/openAccessStivanin,Sheila Cristina BoscoWerncke,DaíseVizzotto,Elissa ForgiariniStumpf,Marcelo TempelThaler Neto,AndréFischer,Vivianeng2019-09-09T00:00:00Zoai:scielo:S1516-35982019000100202Revistahttps://www.rbz.org.br/pt-br/https://old.scielo.br/oai/scielo-oai.php||bz@sbz.org.br|| secretariarbz@sbz.org.br1806-92901516-3598opendoar:2019-09-09T00:00Revista Brasileira de Zootecnia (Online) - Sociedade Brasileira de Zootecnia (SBZ)false
dc.title.none.fl_str_mv Variation in available shaded area changes behaviour parameters in grazing dairy cows during the warm season
title Variation in available shaded area changes behaviour parameters in grazing dairy cows during the warm season
spellingShingle Variation in available shaded area changes behaviour parameters in grazing dairy cows during the warm season
Stivanin,Sheila Cristina Bosco
animal welfare
behaviour
dairy cows
heat stress
lactation
shade
title_short Variation in available shaded area changes behaviour parameters in grazing dairy cows during the warm season
title_full Variation in available shaded area changes behaviour parameters in grazing dairy cows during the warm season
title_fullStr Variation in available shaded area changes behaviour parameters in grazing dairy cows during the warm season
title_full_unstemmed Variation in available shaded area changes behaviour parameters in grazing dairy cows during the warm season
title_sort Variation in available shaded area changes behaviour parameters in grazing dairy cows during the warm season
author Stivanin,Sheila Cristina Bosco
author_facet Stivanin,Sheila Cristina Bosco
Werncke,Daíse
Vizzotto,Elissa Forgiarini
Stumpf,Marcelo Tempel
Thaler Neto,André
Fischer,Vivian
author_role author
author2 Werncke,Daíse
Vizzotto,Elissa Forgiarini
Stumpf,Marcelo Tempel
Thaler Neto,André
Fischer,Vivian
author2_role author
author
author
author
author
dc.contributor.author.fl_str_mv Stivanin,Sheila Cristina Bosco
Werncke,Daíse
Vizzotto,Elissa Forgiarini
Stumpf,Marcelo Tempel
Thaler Neto,André
Fischer,Vivian
dc.subject.por.fl_str_mv animal welfare
behaviour
dairy cows
heat stress
lactation
shade
topic animal welfare
behaviour
dairy cows
heat stress
lactation
shade
description ABSTRACT The objective was to investigate the effects of available shaded area on behavioural characteristics of lactating cows during the warm season in the subtropics. Twelve Holstein cows were divided into groups, with 2 (SH2) or 10 m2 (SH10) of available shade per cow (six cows per treatment). The behaviour was recorded when animals were grazing from 09.00 to 16.00 h (GMT −02.00 h) throughout the trial. Data considered in the statistical analysis were restricted to the five days when the maximum temperature was ≥ 25 °C. Cows in the SH10 group had lower panting score, but higher proportions of time in shade and lying down and stayed more time per visit in the shaded area than cows in the SH2 group. Cows in the SH10 group had less events of competition near the water trough and in the shaded area than cows in the SH2 group. The solar radiation threshold that triggered the use of the shade was lower in SH10 than in SH2 group. Hourly proportion of time spent grazing or ruminating differed between shaded areas at specific times. The 2 m2 of available shaded area per cow is sufficient for all cows to enter the shaded area at the same time. In spite of that, 2 m2 of available shaded area per cow negatively affects the proportion of time spent lying and in the shaded area; in addition, it enhances agonistic behaviours between cows when compared with 10 m2 of shade per cow.
publishDate 2019
dc.date.none.fl_str_mv 2019-01-01
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982019000100202
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982019000100202
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/rbz4820180316
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv text/html
dc.publisher.none.fl_str_mv Sociedade Brasileira de Zootecnia
publisher.none.fl_str_mv Sociedade Brasileira de Zootecnia
dc.source.none.fl_str_mv Revista Brasileira de Zootecnia v.48 2019
reponame:Revista Brasileira de Zootecnia (Online)
instname:Sociedade Brasileira de Zootecnia (SBZ)
instacron:SBZ
instname_str Sociedade Brasileira de Zootecnia (SBZ)
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institution SBZ
reponame_str Revista Brasileira de Zootecnia (Online)
collection Revista Brasileira de Zootecnia (Online)
repository.name.fl_str_mv Revista Brasileira de Zootecnia (Online) - Sociedade Brasileira de Zootecnia (SBZ)
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