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 | Acesso ao texto completo restrito à biblioteca da Embrapa Suínos e Aves. Para informações adicionais entre em contato com cnpsa.biblioteca@embrapa.br. |
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Registro Completo |
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Biblioteca(s): |
Embrapa Suínos e Aves. |
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Data corrente: |
04/11/2020 |
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Data da última atualização: |
05/11/2020 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
BAENA, M. M.; COSTA, A. C.; VIEIRA, G. R.; ROCHA, R. de F. B.; RIBEIRO, A. R. B.; IBELLI, A. M. G.; MEIRELLES, S. L. C. |
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Afiliação: |
MARIELLE MOURA BAENA, UFL; ADRIANO CARVALHO COSTA, UFG; GABRIELA RODRIGUES VIEIRA, UFL; RENATA DE FÁTIMA BRETANHA ROCHA, UFL; ANDREA ROBERTO BUENO RIBEIRO, FMU; ADRIANA MERCIA GUARATINI IBELLI, CNPSA; SARAH LAGUNA CONCEIÇÃO MEIRELLES, UFL. |
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Título: |
Heat tolerance responses in a Bos Taurus cattle herd raised in a Brazilian climate. |
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Ano de publicação: |
2019 |
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Fonte/Imprenta: |
Journal of Thermal Biology, v. 81, p. 162-169, 2019. |
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DOI: |
https://doi.org/10.1016/j.jtherbio.2019.02.017 |
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Idioma: |
Inglês |
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Conteúdo: |
Abstract: Knowledge of thermoregulatory responses in taurine cattle contribute to identification of animals most adapted to heat and productive when raised under Brazilian climate. The objectives were to verify the morphological and physiological responses related to adaptation to heat of taurine breeds raised under in Brazilian meteorological conditions in different seasons of the year and day periods, and to detect differences within and between breeds to know breed is most adapted. Measurements were made of 74 young bulls (n=31 Angus; n=43 Simmental) for the morphological traits: hair length (HL), number of hairs (NH), and coat thickness (CT); and for the physiological traits: respiratory rate (RR) and hair coat surface temperature (ST). The temperature-humidity index (THI) was calculated. The data were subjected to analyses of variance, cluster analysis, and principal component analysis (PCA). The THI (< 74) indicates thermal comfort. In the winter, the HL and CT higher than in the spring season (P < 0.0001) in both breeds. Angus exhibited higher HL and CT (P < 0.0001). Within each breed, the animals differed from one another for HL (P < 0.0005). In the spring, CT was similar between the breeds, differing only in the winter season. Angus had higher values (P < 0.0005) of RR and lower values (P < 0.0001) of ST. Both breeds had higher (P < 0.0001) RR and ST in the afternoon. PCA showed that NH and HL better explained variation in adaptation. In general, the breeds have similar morphological responses in the hottest months, but have different physiological responses; Simmental proves to be more physiologically resistant. The afternoon was more stressful than the morning, even though the animals were in a thermal comfort zone. Measuring traits related to hair coat is sufficient for effective evaluation of adaptation, and the season affects the morphological and physiological traits of taurine cattle raised. MenosAbstract: Knowledge of thermoregulatory responses in taurine cattle contribute to identification of animals most adapted to heat and productive when raised under Brazilian climate. The objectives were to verify the morphological and physiological responses related to adaptation to heat of taurine breeds raised under in Brazilian meteorological conditions in different seasons of the year and day periods, and to detect differences within and between breeds to know breed is most adapted. Measurements were made of 74 young bulls (n=31 Angus; n=43 Simmental) for the morphological traits: hair length (HL), number of hairs (NH), and coat thickness (CT); and for the physiological traits: respiratory rate (RR) and hair coat surface temperature (ST). The temperature-humidity index (THI) was calculated. The data were subjected to analyses of variance, cluster analysis, and principal component analysis (PCA). The THI (< 74) indicates thermal comfort. In the winter, the HL and CT higher than in the spring season (P < 0.0001) in both breeds. Angus exhibited higher HL and CT (P < 0.0001). Within each breed, the animals differed from one another for HL (P < 0.0005). In the spring, CT was similar between the breeds, differing only in the winter season. Angus had higher values (P < 0.0005) of RR and lower values (P < 0.0001) of ST. Both breeds had higher (P < 0.0001) RR and ST in the afternoon. PCA showed that NH and HL better explained variation in adaptation. In general, the breeds have sim... Mostrar Tudo |
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Palavras-Chave: |
Adaptabilidade; Adaptability; Qualidade da carcaça; Taurine cattle; Tropical weather. |
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Thesagro: |
Bos Taurus; Clima Tropical; Genética Animal; Pecuária; Produção Animal; Termorregulação. |
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Thesaurus Nal: |
Brazil; Carcass quality; Cattle production; Livestock; Thermoregulation. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 03095naa a2200397 a 4500
001 2126309
005 2020-11-05
008 2019 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.1016/j.jtherbio.2019.02.017$2DOI
100 1 $aBAENA, M. M.
245 $aHeat tolerance responses in a Bos Taurus cattle herd raised in a Brazilian climate.$h[electronic resource]
260 $c2019
520 $aAbstract: Knowledge of thermoregulatory responses in taurine cattle contribute to identification of animals most adapted to heat and productive when raised under Brazilian climate. The objectives were to verify the morphological and physiological responses related to adaptation to heat of taurine breeds raised under in Brazilian meteorological conditions in different seasons of the year and day periods, and to detect differences within and between breeds to know breed is most adapted. Measurements were made of 74 young bulls (n=31 Angus; n=43 Simmental) for the morphological traits: hair length (HL), number of hairs (NH), and coat thickness (CT); and for the physiological traits: respiratory rate (RR) and hair coat surface temperature (ST). The temperature-humidity index (THI) was calculated. The data were subjected to analyses of variance, cluster analysis, and principal component analysis (PCA). The THI (< 74) indicates thermal comfort. In the winter, the HL and CT higher than in the spring season (P < 0.0001) in both breeds. Angus exhibited higher HL and CT (P < 0.0001). Within each breed, the animals differed from one another for HL (P < 0.0005). In the spring, CT was similar between the breeds, differing only in the winter season. Angus had higher values (P < 0.0005) of RR and lower values (P < 0.0001) of ST. Both breeds had higher (P < 0.0001) RR and ST in the afternoon. PCA showed that NH and HL better explained variation in adaptation. In general, the breeds have similar morphological responses in the hottest months, but have different physiological responses; Simmental proves to be more physiologically resistant. The afternoon was more stressful than the morning, even though the animals were in a thermal comfort zone. Measuring traits related to hair coat is sufficient for effective evaluation of adaptation, and the season affects the morphological and physiological traits of taurine cattle raised.
650 $aBrazil
650 $aCarcass quality
650 $aCattle production
650 $aLivestock
650 $aThermoregulation
650 $aBos Taurus
650 $aClima Tropical
650 $aGenética Animal
650 $aPecuária
650 $aProdução Animal
650 $aTermorregulação
653 $aAdaptabilidade
653 $aAdaptability
653 $aQualidade da carcaça
653 $aTaurine cattle
653 $aTropical weather
700 1 $aCOSTA, A. C.
700 1 $aVIEIRA, G. R.
700 1 $aROCHA, R. de F. B.
700 1 $aRIBEIRO, A. R. B.
700 1 $aIBELLI, A. M. G.
700 1 $aMEIRELLES, S. L. C.
773 $tJournal of Thermal Biology$gv. 81, p. 162-169, 2019.
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Embrapa Suínos e Aves (CNPSA) |
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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. |
Registro Completo
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Biblioteca(s): |
Embrapa Caprinos e Ovinos. |
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Data corrente: |
19/10/2023 |
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Data da última atualização: |
19/10/2023 |
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Tipo da produção científica: |
Resumo em Anais de Congresso |
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Autoria: |
ARAUJO, A. M. de; SILVA, F. L. R. D.; MOTTA, M. M.; MACHADO, T. M. M.; SANTOS, D. O.; CARVALHO, G. M. C. |
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Afiliação: |
ADRIANA MELLO DE ARAUJO, CPAMN; FRANCISCO LUIZ RIBEIRO DA SILVA, CNPC; MÁRCIA M. MOTA, ESTAGIARIA EMBRAPA MEIO-NORTE; THEA MIRIAN MEDEIROS MACHADO, UFV; DIONES OLIVEIRA SANTOS, CNPC; GERALDO MAGELA CORTES CARVALHO, CPAMN. |
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Título: |
Evolução no rebanho de conservação de caprinos Moxotó. |
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Ano de publicação: |
2005 |
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Fonte/Imprenta: |
In: SIMPOSIO DE RECURSOS GENÉTICOS PARA AMÉRICA LATINA Y EL CARIBE, SIRGEALC, 5., 2005, Montevideo, Uruguay. Resúmenes... Montevideo: Instituto Nacional de Investigación Agropecuaria: Universidad de la República, Facultad de Agronomía, 2005. p. 103. |
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Idioma: |
Português |
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Conteúdo: |
Os caprinos chegaram ao Brasil na época da colonização e foram adaptados para a convivência com o semi-árido nordestino, constituindo-se na principal fonte protéica do homem do campo nesta região. O aumento do interesse comercial pelos produtos caprinos levou ao processo sistemático de cruzamentos com raças exóticas mais produtivas, a fim de solucionar o baixo potencial genético do material existente. |
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Thesagro: |
Caprino; Endogamia; Manejo; Método de Melhoramento; Rebanho; Tamanho. |
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Categoria do assunto: |
L Ciência Animal e Produtos de Origem Animal |
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Marc: |
LEADER 01288nam a2200241 a 4500
001 2157348
005 2023-10-19
008 2005 bl uuuu u00u1 u #d
100 1 $aARAUJO, A. M. de
245 $aEvolução no rebanho de conservação de caprinos Moxotó.$h[electronic resource]
260 $aIn: SIMPOSIO DE RECURSOS GENÉTICOS PARA AMÉRICA LATINA Y EL CARIBE, SIRGEALC, 5., 2005, Montevideo, Uruguay. Resúmenes... Montevideo: Instituto Nacional de Investigación Agropecuaria: Universidad de la República, Facultad de Agronomía, 2005. p. 103.$c2005
520 $aOs caprinos chegaram ao Brasil na época da colonização e foram adaptados para a convivência com o semi-árido nordestino, constituindo-se na principal fonte protéica do homem do campo nesta região. O aumento do interesse comercial pelos produtos caprinos levou ao processo sistemático de cruzamentos com raças exóticas mais produtivas, a fim de solucionar o baixo potencial genético do material existente.
650 $aCaprino
650 $aEndogamia
650 $aManejo
650 $aMétodo de Melhoramento
650 $aRebanho
650 $aTamanho
700 1 $aSILVA, F. L. R. D.
700 1 $aMOTTA, M. M.
700 1 $aMACHADO, T. M. M.
700 1 $aSANTOS, D. O.
700 1 $aCARVALHO, G. M. C.
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Embrapa Caprinos e Ovinos (CNPC) |
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