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 | Acesso ao texto completo restrito à biblioteca da Embrapa Caprinos e Ovinos. Para informações adicionais entre em contato com cnpc.biblioteca@embrapa.br. |
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Registro Completo |
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Biblioteca(s): |
Embrapa Caprinos e Ovinos. |
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Data corrente: |
19/11/2020 |
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Data da última atualização: |
14/01/2025 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
CASTRO, M. S. M.; VASCONCELOS, A. M. de; SANTOS, V. O. dos; LOPES, A. K. C.; FARIAS, M. R. S. de; LIMA, F. R. G.; ROGERIO, M. C. P.; FERREIRA, J.; SILVEIRA, R. M. F. |
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Afiliação: |
MARIA SAMIRES MARTINS CASTRO, STATE UNIVERSITY OF ACARAÚ VALLEY; ANGELA MARIA DE VASCONCELOS, STATE UNIVERSITY OF ACARAÚ VALLEY; VALDERLANDIA OLIVEIRA DOS SANTOS, STATE UNIVERSITY OF ACARAÚ VALLEY; ANA KELRY CARNEIRO LOPES, STATE UNIVERSITY OF ACARAÚ VALLEY; MARIA ROGERVÂNIA SILVA DE FARIAS, STATE UNIVERSITY OF ACARAÚ VALLEY; FÁTIMA RÉVIA GRANJA LIMA, STATE UNIVERSITY OF ACARAÚ VALLEY; MARCOS CLAUDIO PINHEIRO ROGERIO, CNPC; JOSIEL FERREIRA, FEDERAL RURAL UNIVERSITY OF THE SEMI-ARID REGION; ROBSON MATEUS FREITAS SILVEIRA, STATE UNIVERSITY OF ACARAÚ VALLEY. |
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Título: |
Thermoregulatory capacity of Santa Inês hair ewes of different genotypes associated with coat colors raised in a hot environment. |
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Ano de publicação: |
2020 |
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Fonte/Imprenta: |
Journal of Applied Animal Welfare Science, Vv. 24, n. 4, p. 400-410, 2020. |
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DOI: |
https://doi.org/10.1080/10888705.2020.1819808 |
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Idioma: |
Inglês |
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Conteúdo: |
Abstract: The relationship between hair color characteristics and thermoregulatory responses in ewes raised in hot environment were evaluated. 15 Santa Inês hair ewes of different genotypes associated with coat colors (light brown, dark brown and black) with body weight of 41.2 ± 8.1 kg were evaluated during three consecutive days. Rectal temperature (RT, °C) and coat surface temperature (CST, °C) of seven anatomical points (front, back, croup, loin, side, thigh, and belly) were measured during the morning and afternoon periods. Thermoregulatory responses were recorded along with meteorological variables. Heat tolerance index (HTI) and thermal gradient (TG, °C) were estimated for each genotype. RT and CST were influenced by periods of the day (P < 0.05), being higher in the afternoon, but TG did not differ (P > 0.05) between periods. HTI, CST, and TG were equal (P > 0.05) among the three genotypes. Only RT was higher in animals with dark brown coats compared to light brown, but equal to the black coat. It was observed that animals with black or dark brown hairs have a strong association between the CST under study, and yet these had an inverse behavior with the RT. Animals with a darker coat tend to trigger heat dissipation in various anatomical regions of the body, presenting dynamics in thermoregulatory responses in relation to those with lighter coats. Santa Inês ewes have heat dissipation mechanisms as a function of different genotypes associated with coat colors, but have the same thermoregulatory aspects to maintain homeostasis, demonstrating an excellent adaptive mechanism in a hot environment. MenosAbstract: The relationship between hair color characteristics and thermoregulatory responses in ewes raised in hot environment were evaluated. 15 Santa Inês hair ewes of different genotypes associated with coat colors (light brown, dark brown and black) with body weight of 41.2 ± 8.1 kg were evaluated during three consecutive days. Rectal temperature (RT, °C) and coat surface temperature (CST, °C) of seven anatomical points (front, back, croup, loin, side, thigh, and belly) were measured during the morning and afternoon periods. Thermoregulatory responses were recorded along with meteorological variables. Heat tolerance index (HTI) and thermal gradient (TG, °C) were estimated for each genotype. RT and CST were influenced by periods of the day (P < 0.05), being higher in the afternoon, but TG did not differ (P > 0.05) between periods. HTI, CST, and TG were equal (P > 0.05) among the three genotypes. Only RT was higher in animals with dark brown coats compared to light brown, but equal to the black coat. It was observed that animals with black or dark brown hairs have a strong association between the CST under study, and yet these had an inverse behavior with the RT. Animals with a darker coat tend to trigger heat dissipation in various anatomical regions of the body, presenting dynamics in thermoregulatory responses in relation to those with lighter coats. Santa Inês ewes have heat dissipation mechanisms as a function of different genotypes associated with coat colors, but ha... Mostrar Tudo |
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Thesaurus Nal: |
Animal adaptation; Animal genetic resources; Brazil; Homeostasis; Multivariate analysis; Semiarid zones; Sheep; Thermoregulation. |
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Categoria do assunto: |
G Melhoramento Genético |
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Marc: |
LEADER 02680naa a2200325 a 4500
001 2126824
005 2025-01-14
008 2020 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.1080/10888705.2020.1819808$2DOI
100 1 $aCASTRO, M. S. M.
245 $aThermoregulatory capacity of Santa Inês hair ewes of different genotypes associated with coat colors raised in a hot environment.$h[electronic resource]
260 $c2020
520 $aAbstract: The relationship between hair color characteristics and thermoregulatory responses in ewes raised in hot environment were evaluated. 15 Santa Inês hair ewes of different genotypes associated with coat colors (light brown, dark brown and black) with body weight of 41.2 ± 8.1 kg were evaluated during three consecutive days. Rectal temperature (RT, °C) and coat surface temperature (CST, °C) of seven anatomical points (front, back, croup, loin, side, thigh, and belly) were measured during the morning and afternoon periods. Thermoregulatory responses were recorded along with meteorological variables. Heat tolerance index (HTI) and thermal gradient (TG, °C) were estimated for each genotype. RT and CST were influenced by periods of the day (P < 0.05), being higher in the afternoon, but TG did not differ (P > 0.05) between periods. HTI, CST, and TG were equal (P > 0.05) among the three genotypes. Only RT was higher in animals with dark brown coats compared to light brown, but equal to the black coat. It was observed that animals with black or dark brown hairs have a strong association between the CST under study, and yet these had an inverse behavior with the RT. Animals with a darker coat tend to trigger heat dissipation in various anatomical regions of the body, presenting dynamics in thermoregulatory responses in relation to those with lighter coats. Santa Inês ewes have heat dissipation mechanisms as a function of different genotypes associated with coat colors, but have the same thermoregulatory aspects to maintain homeostasis, demonstrating an excellent adaptive mechanism in a hot environment.
650 $aAnimal adaptation
650 $aAnimal genetic resources
650 $aBrazil
650 $aHomeostasis
650 $aMultivariate analysis
650 $aSemiarid zones
650 $aSheep
650 $aThermoregulation
700 1 $aVASCONCELOS, A. M. de
700 1 $aSANTOS, V. O. dos
700 1 $aLOPES, A. K. C.
700 1 $aFARIAS, M. R. S. de
700 1 $aLIMA, F. R. G.
700 1 $aROGERIO, M. C. P.
700 1 $aFERREIRA, J.
700 1 $aSILVEIRA, R. M. F.
773 $tJournal of Applied Animal Welfare Science, Vv. 24$gn. 4, p. 400-410, 2020.
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Embrapa Caprinos e Ovinos (CNPC) |
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| 1. |  | GAMA, E. E. G. Programa IICA/BID/PROCISUR. In: EMBRAPA. Centro de Nacional de Pesquisa de Milho e Sorgo. Relatório técnico anual do Centro Nacional de Pesquisa de Milho e Sorgo 1985-1987. Sete Lagoas, 1991. p. 165.| Biblioteca(s): Embrapa Milho e Sorgo. |
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| 2. | | GAMA, E. E. G. Programa IICA-Cone Sul/BID. In: EMBRAPA. Centro de Nacional de Pesquisa de Milho e Sorgo. Relatório técnico anual do Centro Nacional de Pesquisa de Milho e Sorgo 1980-84. Sete Lagoas, 1986. p. 179.| Biblioteca(s): Embrapa Milho e Sorgo. |
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