Physiological and behavioral responses of Nellore steers to artificial shading in an intensive production system
Autor(a) principal: | |
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Data de Publicação: | 2016 |
Outros Autores: | , , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Semina. Ciências Agrárias (Online) |
Texto Completo: | https://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/25040 |
Resumo: | The influence of artificial shading on environmental variables and on behavioral responses of Nellore steers in an intensive production system was evaluated in this study. The experiment was conducted in the experimental feedlot of the Department of Animal Science at Universidade Estadual de Goiás, from July to October 2014. Forty-eight male Nellore cattle with an average initial weight of 310 kg were kept in double 24-m2 stalls, in a total of 24 stalls. Of these, six were in the open air; six were covered with black shade netting of 30% light interception; six with black shade netting 50%; and six with black shade netting 80%, providing 6 m2 of shade per stall. Temperature-humidity index (THI) and respiratory frequency (RF) were assessed twice weekly and behavior was evaluated fortnightly during 12 h, between 06:00 h and 18.00 h. Feeding behavior, rumination, rest, and social activities such as body care and playful and abnormal activities were observed. A significant increase was found in THI and RF as the shading levels decreased, while a significant difference was recorded in rest and in other activities, water intake, and play behavior. Rest time and playful behavior increased significantly, and other activities and water intake decreased with the increase in shading levels. Shading does not change the time spent on feeding behaviors and rumination, or the frequencies of urination, defecation, cleaning other animals, self-cleaning, and social and abnormal types of behavior. The use of black shade netting of 80% light interception provides greater comfort to animals, promoting welfare and quality of life to them. |
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Semina. Ciências Agrárias (Online) |
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Physiological and behavioral responses of Nellore steers to artificial shading in an intensive production systemRespostas fisiológicas e comportamentais de bovinos Nelore em sistema intensivo de produção com sombreamento artificialAmbienceBehaviorPerformanceWelfare.AmbiênciaBem-estarComportamentoDesempenho.The influence of artificial shading on environmental variables and on behavioral responses of Nellore steers in an intensive production system was evaluated in this study. The experiment was conducted in the experimental feedlot of the Department of Animal Science at Universidade Estadual de Goiás, from July to October 2014. Forty-eight male Nellore cattle with an average initial weight of 310 kg were kept in double 24-m2 stalls, in a total of 24 stalls. Of these, six were in the open air; six were covered with black shade netting of 30% light interception; six with black shade netting 50%; and six with black shade netting 80%, providing 6 m2 of shade per stall. Temperature-humidity index (THI) and respiratory frequency (RF) were assessed twice weekly and behavior was evaluated fortnightly during 12 h, between 06:00 h and 18.00 h. Feeding behavior, rumination, rest, and social activities such as body care and playful and abnormal activities were observed. A significant increase was found in THI and RF as the shading levels decreased, while a significant difference was recorded in rest and in other activities, water intake, and play behavior. Rest time and playful behavior increased significantly, and other activities and water intake decreased with the increase in shading levels. Shading does not change the time spent on feeding behaviors and rumination, or the frequencies of urination, defecation, cleaning other animals, self-cleaning, and social and abnormal types of behavior. The use of black shade netting of 80% light interception provides greater comfort to animals, promoting welfare and quality of life to them.Objetivou-se avaliar a influência dos níveis de sombreamento artificial nas variáveis ambientais e nas respostas comportamentais de machos bovinos nelore em sistema intensivo de produção. O experimento foi realizado no confinamento experimental do curso de Zootecnia da Universidade Estadual de Goiás, no período de julho a outubro de 2014. Utilizaram-se 48 bovinos machos Nelore, com peso médio inicial de 310 kg, mantidos em baias duplas de 24m², sendo utilizados 24 baias, destas, seis a céu aberto, seis com sombrite preto com malha 30%, seis com malha 50% e seis com malha 80%, cobrindo seis m² de sombra por baia. Foi realizado duas vezes por semana avaliação de ITU e frequência respiratória e quinzenalmente a avaliação de comportamento, com duração de 12 horas, com início as 6:00h e término às 18:00h, observou-se o comportamento alimentar, ruminação, descanso, outras atividades, social, cuidados corporais, lúdico e anormal. Observou-se um aumento significativo nos valores de ITU e FR a medida que se reduzia os níveis de sombreamento. Também foi observado uma diferença significativa no tempo de comportamentos de descanso e em outras atividades, e na frequência do consumo de água e comportamento lúdico, com aumento significativo no tempo de descanso e frequência de comportamento lúdico, e redução de outras atividades e ingestão de água em função do aumento dos níveis de sombreamento. Não se observou diferença significativa nos tempos de comportamento alimentar e de ruminação e nas frequências de micção, defecação, autolimpeza e comportamentos sociais e anormais. A utilização do sombreamento do tipo 80% porporciona um maior conforto aos animais, favorecendo do bem-estar e a qualidade de vida.UEL2016-09-02info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionArtigo Científicoapplication/pdfhttps://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/2504010.5433/1679-0359.2016v37n4Supl1p2785Semina: Ciências Agrárias; Vol. 37 No. 4Supl1 (2016); 2785-2792Semina: Ciências Agrárias; v. 37 n. 4Supl1 (2016); 2785-27921679-03591676-546Xreponame:Semina. Ciências Agrárias (Online)instname:Universidade Estadual de Londrina (UEL)instacron:UELenghttps://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/25040/19624Copyright (c) 2016 Semina: Ciências Agráriashttp://creativecommons.org/licenses/by-nc/4.0info:eu-repo/semantics/openAccessFerro, Diogo Alves da CostaArnhold, EmmanuelBueno, Claudia PeixotoMiyagi, Eliane SayuriFerro, Rafael Alves da CostaSantos, Aracele Pinheiro Pales dosSantos, Klayto José Gonçalves dosSilva, Bruna Paula Alves da2022-11-30T16:05:32Zoai:ojs.pkp.sfu.ca:article/25040Revistahttp://www.uel.br/revistas/uel/index.php/semagrariasPUBhttps://ojs.uel.br/revistas/uel/index.php/semagrarias/oaisemina.agrarias@uel.br1679-03591676-546Xopendoar:2022-11-30T16:05:32Semina. Ciências Agrárias (Online) - Universidade Estadual de Londrina (UEL)false |
dc.title.none.fl_str_mv |
Physiological and behavioral responses of Nellore steers to artificial shading in an intensive production system Respostas fisiológicas e comportamentais de bovinos Nelore em sistema intensivo de produção com sombreamento artificial |
title |
Physiological and behavioral responses of Nellore steers to artificial shading in an intensive production system |
spellingShingle |
Physiological and behavioral responses of Nellore steers to artificial shading in an intensive production system Ferro, Diogo Alves da Costa Ambience Behavior Performance Welfare. Ambiência Bem-estar Comportamento Desempenho. |
title_short |
Physiological and behavioral responses of Nellore steers to artificial shading in an intensive production system |
title_full |
Physiological and behavioral responses of Nellore steers to artificial shading in an intensive production system |
title_fullStr |
Physiological and behavioral responses of Nellore steers to artificial shading in an intensive production system |
title_full_unstemmed |
Physiological and behavioral responses of Nellore steers to artificial shading in an intensive production system |
title_sort |
Physiological and behavioral responses of Nellore steers to artificial shading in an intensive production system |
author |
Ferro, Diogo Alves da Costa |
author_facet |
Ferro, Diogo Alves da Costa Arnhold, Emmanuel Bueno, Claudia Peixoto Miyagi, Eliane Sayuri Ferro, Rafael Alves da Costa Santos, Aracele Pinheiro Pales dos Santos, Klayto José Gonçalves dos Silva, Bruna Paula Alves da |
author_role |
author |
author2 |
Arnhold, Emmanuel Bueno, Claudia Peixoto Miyagi, Eliane Sayuri Ferro, Rafael Alves da Costa Santos, Aracele Pinheiro Pales dos Santos, Klayto José Gonçalves dos Silva, Bruna Paula Alves da |
author2_role |
author author author author author author author |
dc.contributor.author.fl_str_mv |
Ferro, Diogo Alves da Costa Arnhold, Emmanuel Bueno, Claudia Peixoto Miyagi, Eliane Sayuri Ferro, Rafael Alves da Costa Santos, Aracele Pinheiro Pales dos Santos, Klayto José Gonçalves dos Silva, Bruna Paula Alves da |
dc.subject.por.fl_str_mv |
Ambience Behavior Performance Welfare. Ambiência Bem-estar Comportamento Desempenho. |
topic |
Ambience Behavior Performance Welfare. Ambiência Bem-estar Comportamento Desempenho. |
description |
The influence of artificial shading on environmental variables and on behavioral responses of Nellore steers in an intensive production system was evaluated in this study. The experiment was conducted in the experimental feedlot of the Department of Animal Science at Universidade Estadual de Goiás, from July to October 2014. Forty-eight male Nellore cattle with an average initial weight of 310 kg were kept in double 24-m2 stalls, in a total of 24 stalls. Of these, six were in the open air; six were covered with black shade netting of 30% light interception; six with black shade netting 50%; and six with black shade netting 80%, providing 6 m2 of shade per stall. Temperature-humidity index (THI) and respiratory frequency (RF) were assessed twice weekly and behavior was evaluated fortnightly during 12 h, between 06:00 h and 18.00 h. Feeding behavior, rumination, rest, and social activities such as body care and playful and abnormal activities were observed. A significant increase was found in THI and RF as the shading levels decreased, while a significant difference was recorded in rest and in other activities, water intake, and play behavior. Rest time and playful behavior increased significantly, and other activities and water intake decreased with the increase in shading levels. Shading does not change the time spent on feeding behaviors and rumination, or the frequencies of urination, defecation, cleaning other animals, self-cleaning, and social and abnormal types of behavior. The use of black shade netting of 80% light interception provides greater comfort to animals, promoting welfare and quality of life to them. |
publishDate |
2016 |
dc.date.none.fl_str_mv |
2016-09-02 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Artigo Científico |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
https://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/25040 10.5433/1679-0359.2016v37n4Supl1p2785 |
url |
https://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/25040 |
identifier_str_mv |
10.5433/1679-0359.2016v37n4Supl1p2785 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
https://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/25040/19624 |
dc.rights.driver.fl_str_mv |
Copyright (c) 2016 Semina: Ciências Agrárias http://creativecommons.org/licenses/by-nc/4.0 info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
Copyright (c) 2016 Semina: Ciências Agrárias http://creativecommons.org/licenses/by-nc/4.0 |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
UEL |
publisher.none.fl_str_mv |
UEL |
dc.source.none.fl_str_mv |
Semina: Ciências Agrárias; Vol. 37 No. 4Supl1 (2016); 2785-2792 Semina: Ciências Agrárias; v. 37 n. 4Supl1 (2016); 2785-2792 1679-0359 1676-546X reponame:Semina. Ciências Agrárias (Online) instname:Universidade Estadual de Londrina (UEL) instacron:UEL |
instname_str |
Universidade Estadual de Londrina (UEL) |
instacron_str |
UEL |
institution |
UEL |
reponame_str |
Semina. Ciências Agrárias (Online) |
collection |
Semina. Ciências Agrárias (Online) |
repository.name.fl_str_mv |
Semina. Ciências Agrárias (Online) - Universidade Estadual de Londrina (UEL) |
repository.mail.fl_str_mv |
semina.agrarias@uel.br |
_version_ |
1799306075705442304 |