Coat characteristics and physiological responses of locally adapted ewes in semiarid region of Brazil

Detalhes bibliográficos
Autor(a) principal: Costa, Wirton Peixoto
Data de Publicação: 2018
Outros Autores: Pimenta Filho, Edgard Cavalcanti, Leite, Jacinara Hody Gurgel Morais, Silva, Wallace Sóstene Tavares da, Siva, Wilma Emanuela da, Lima, Francisco Helton Sá de, Peixoto-Júnior, Gilvan Nogueira Alves, Façanha, Débora Andréa Evangelista
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Semina. Ciências Agrárias (Online)
DOI: 10.5433/1679-0359.2018v39n3p1281
Texto Completo: https://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/29595
Resumo: This study aimed to evaluate the effects of heat stress and characterize the coat characteristics of red and white varieties of Morada Nova sheep raised in the semiarid region of Brazil during the rainy and dry seasons. The following variables were investigated: coat thickness (CT), inclination angle of the coat (?I), hair coat density (HDE), hair length (HL) and hair diameter (HD), in conjunction with the physiological responses of rectal temperature (RT) and respiratory rate (RR). The data were tested with an analysis of variance, a Tukey test at a 5% significance level and a correlation analysis. The season of the year (dry and rainy) and the variety (red and white) were used as fixed effects in the analysis of variance. HL, HDE and HD were significantly greater in the dry season than in the rainy season (P < 0.05), but CT and ?I did not differ between seasons (P > 0.05). HL, HDE and HD were lower and ?I was greater (P < 0.05) for the red variety, but CT was statistically equal (P > 0.05) for the two varieties. It was concluded that the coat characteristics of the Morada Nova ewes favor the adaptation of the sheep to a semiarid environment, including the improved protection of the skin against ultraviolet radiation. In general, the white variety presented characteristics reflecting a higher degree of adaptation to the conditions of the Brazilian semiarid region.
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spelling Coat characteristics and physiological responses of locally adapted ewes in semiarid region of BrazilCaracterísticas de pelame e respostas fisiológicas de ovelhas nativas da região Semiárida do BrasilConservation of animal genetic resourcesHair coatSheepTropical environment.Ambiente tropicalConservação de recursos genéticosCaracterísticas de pelameOvelhas.This study aimed to evaluate the effects of heat stress and characterize the coat characteristics of red and white varieties of Morada Nova sheep raised in the semiarid region of Brazil during the rainy and dry seasons. The following variables were investigated: coat thickness (CT), inclination angle of the coat (?I), hair coat density (HDE), hair length (HL) and hair diameter (HD), in conjunction with the physiological responses of rectal temperature (RT) and respiratory rate (RR). The data were tested with an analysis of variance, a Tukey test at a 5% significance level and a correlation analysis. The season of the year (dry and rainy) and the variety (red and white) were used as fixed effects in the analysis of variance. HL, HDE and HD were significantly greater in the dry season than in the rainy season (P < 0.05), but CT and ?I did not differ between seasons (P > 0.05). HL, HDE and HD were lower and ?I was greater (P < 0.05) for the red variety, but CT was statistically equal (P > 0.05) for the two varieties. It was concluded that the coat characteristics of the Morada Nova ewes favor the adaptation of the sheep to a semiarid environment, including the improved protection of the skin against ultraviolet radiation. In general, the white variety presented characteristics reflecting a higher degree of adaptation to the conditions of the Brazilian semiarid region.O objetivo desse trabalho foi avaliar as características de pelame de ovelhas da variedades vermelha e outra branca da raça Morada Nova, criadas no ambiente semiárido brasileiro, durante as épocas seca e chuvosa. Foram avaliada espessura de pelame (CT), ângulo de inclinação do pelo (I), número de pelos (HDE), comprimento do pelo (HL) e diâmetro do pelo (HD), em conjunto com as respostas fisiológicas temperature retal (RT) e frequência respiratória (RR). Foram realizados análise de variância e teste de Tukey a 5% de probabilidade. A estação do ano (seca e chuvosa) e variedade (vermelha e branca) foram usadas como fatores fixos. HL, HDE e HD foram significativamente maiores na estação seca (P < 0,05), mas CT e ?I não diferiram. HL, HDE e HD foram menor e ?I foi maior na variedade vermelha, CT não apresentou diferença em relação a variedade. Conclui-se que as características de pelame das ovelhas Morada Nova favorecem a adaptação a ambiente semiárido, incluindo proteção da pele contra o excesso de raios ultravioleta, com a variedade branca apresentando-se mais favorável à adaptação nas condições da região semiárida brasileira.UEL2018-05-04info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionResearchapplication/pdfhttps://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/2959510.5433/1679-0359.2018v39n3p1281Semina: Ciências Agrárias; Vol. 39 No. 3 (2018); 1281-1294Semina: Ciências Agrárias; v. 39 n. 3 (2018); 1281-12941679-03591676-546Xreponame:Semina. Ciências Agrárias (Online)instname:Universidade Estadual de Londrina (UEL)instacron:UELenghttps://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/29595/23522Copyright (c) 2018 Semina: Ciências Agráriashttp://creativecommons.org/licenses/by-nc/4.0info:eu-repo/semantics/openAccessCosta, Wirton PeixotoPimenta Filho, Edgard CavalcantiLeite, Jacinara Hody Gurgel MoraisSilva, Wallace Sóstene Tavares daSiva, Wilma Emanuela daLima, Francisco Helton Sá dePeixoto-Júnior, Gilvan Nogueira AlvesFaçanha, Débora Andréa Evangelista2022-10-20T20:59:24Zoai:ojs.pkp.sfu.ca:article/29595Revistahttp://www.uel.br/revistas/uel/index.php/semagrariasPUBhttps://ojs.uel.br/revistas/uel/index.php/semagrarias/oaisemina.agrarias@uel.br1679-03591676-546Xopendoar:2022-10-20T20:59:24Semina. Ciências Agrárias (Online) - Universidade Estadual de Londrina (UEL)false
dc.title.none.fl_str_mv Coat characteristics and physiological responses of locally adapted ewes in semiarid region of Brazil
Características de pelame e respostas fisiológicas de ovelhas nativas da região Semiárida do Brasil
title Coat characteristics and physiological responses of locally adapted ewes in semiarid region of Brazil
spellingShingle Coat characteristics and physiological responses of locally adapted ewes in semiarid region of Brazil
Coat characteristics and physiological responses of locally adapted ewes in semiarid region of Brazil
Costa, Wirton Peixoto
Conservation of animal genetic resources
Hair coat
Sheep
Tropical environment.
Ambiente tropical
Conservação de recursos genéticos
Características de pelame
Ovelhas.
Costa, Wirton Peixoto
Conservation of animal genetic resources
Hair coat
Sheep
Tropical environment.
Ambiente tropical
Conservação de recursos genéticos
Características de pelame
Ovelhas.
title_short Coat characteristics and physiological responses of locally adapted ewes in semiarid region of Brazil
title_full Coat characteristics and physiological responses of locally adapted ewes in semiarid region of Brazil
title_fullStr Coat characteristics and physiological responses of locally adapted ewes in semiarid region of Brazil
Coat characteristics and physiological responses of locally adapted ewes in semiarid region of Brazil
title_full_unstemmed Coat characteristics and physiological responses of locally adapted ewes in semiarid region of Brazil
Coat characteristics and physiological responses of locally adapted ewes in semiarid region of Brazil
title_sort Coat characteristics and physiological responses of locally adapted ewes in semiarid region of Brazil
author Costa, Wirton Peixoto
author_facet Costa, Wirton Peixoto
Costa, Wirton Peixoto
Pimenta Filho, Edgard Cavalcanti
Leite, Jacinara Hody Gurgel Morais
Silva, Wallace Sóstene Tavares da
Siva, Wilma Emanuela da
Lima, Francisco Helton Sá de
Peixoto-Júnior, Gilvan Nogueira Alves
Façanha, Débora Andréa Evangelista
Pimenta Filho, Edgard Cavalcanti
Leite, Jacinara Hody Gurgel Morais
Silva, Wallace Sóstene Tavares da
Siva, Wilma Emanuela da
Lima, Francisco Helton Sá de
Peixoto-Júnior, Gilvan Nogueira Alves
Façanha, Débora Andréa Evangelista
author_role author
author2 Pimenta Filho, Edgard Cavalcanti
Leite, Jacinara Hody Gurgel Morais
Silva, Wallace Sóstene Tavares da
Siva, Wilma Emanuela da
Lima, Francisco Helton Sá de
Peixoto-Júnior, Gilvan Nogueira Alves
Façanha, Débora Andréa Evangelista
author2_role author
author
author
author
author
author
author
dc.contributor.author.fl_str_mv Costa, Wirton Peixoto
Pimenta Filho, Edgard Cavalcanti
Leite, Jacinara Hody Gurgel Morais
Silva, Wallace Sóstene Tavares da
Siva, Wilma Emanuela da
Lima, Francisco Helton Sá de
Peixoto-Júnior, Gilvan Nogueira Alves
Façanha, Débora Andréa Evangelista
dc.subject.por.fl_str_mv Conservation of animal genetic resources
Hair coat
Sheep
Tropical environment.
Ambiente tropical
Conservação de recursos genéticos
Características de pelame
Ovelhas.
topic Conservation of animal genetic resources
Hair coat
Sheep
Tropical environment.
Ambiente tropical
Conservação de recursos genéticos
Características de pelame
Ovelhas.
description This study aimed to evaluate the effects of heat stress and characterize the coat characteristics of red and white varieties of Morada Nova sheep raised in the semiarid region of Brazil during the rainy and dry seasons. The following variables were investigated: coat thickness (CT), inclination angle of the coat (?I), hair coat density (HDE), hair length (HL) and hair diameter (HD), in conjunction with the physiological responses of rectal temperature (RT) and respiratory rate (RR). The data were tested with an analysis of variance, a Tukey test at a 5% significance level and a correlation analysis. The season of the year (dry and rainy) and the variety (red and white) were used as fixed effects in the analysis of variance. HL, HDE and HD were significantly greater in the dry season than in the rainy season (P < 0.05), but CT and ?I did not differ between seasons (P > 0.05). HL, HDE and HD were lower and ?I was greater (P < 0.05) for the red variety, but CT was statistically equal (P > 0.05) for the two varieties. It was concluded that the coat characteristics of the Morada Nova ewes favor the adaptation of the sheep to a semiarid environment, including the improved protection of the skin against ultraviolet radiation. In general, the white variety presented characteristics reflecting a higher degree of adaptation to the conditions of the Brazilian semiarid region.
publishDate 2018
dc.date.none.fl_str_mv 2018-05-04
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Research
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv https://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/29595
10.5433/1679-0359.2018v39n3p1281
url https://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/29595
identifier_str_mv 10.5433/1679-0359.2018v39n3p1281
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/29595/23522
dc.rights.driver.fl_str_mv Copyright (c) 2018 Semina: Ciências Agrárias
http://creativecommons.org/licenses/by-nc/4.0
info:eu-repo/semantics/openAccess
rights_invalid_str_mv Copyright (c) 2018 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. 39 No. 3 (2018); 1281-1294
Semina: Ciências Agrárias; v. 39 n. 3 (2018); 1281-1294
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
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dc.identifier.doi.none.fl_str_mv 10.5433/1679-0359.2018v39n3p1281