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![](/consulta/web/img/deny.png) | Acesso ao texto completo restrito à biblioteca da Embrapa Suínos e Aves. Para informações adicionais entre em contato com cnpsa.biblioteca@embrapa.br. |
Registro Completo |
Biblioteca(s): |
Embrapa Suínos e Aves. |
Data corrente: |
04/11/2020 |
Data da última atualização: |
05/11/2020 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
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. |
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. |
Título: |
Heat tolerance responses in a Bos Taurus cattle herd raised in a Brazilian climate. |
Ano de publicação: |
2019 |
Fonte/Imprenta: |
Journal of Thermal Biology, v. 81, p. 162-169, 2019. |
DOI: |
https://doi.org/10.1016/j.jtherbio.2019.02.017 |
Idioma: |
Inglês |
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 |
Palavras-Chave: |
Adaptabilidade; Adaptability; Qualidade da carcaça; Taurine cattle; Tropical weather. |
Thesagro: |
Bos Taurus; Clima Tropical; Genética Animal; Pecuária; Produção Animal; Termorregulação. |
Thesaurus Nal: |
Brazil; Carcass quality; Cattle production; Livestock; Thermoregulation. |
Categoria do assunto: |
-- |
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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Biblioteca(s): |
Embrapa Recursos Genéticos e Biotecnologia. |
Data corrente: |
12/04/2017 |
Data da última atualização: |
13/06/2024 |
Tipo da produção científica: |
Resumo em Anais de Congresso |
Autoria: |
CASTRO, C. S. P. de; LIMA, L. H. C.; CASTRO, A. C. R. de; TEIXEIRA, A. S.; SOUZA, R. N. M. de. |
Afiliação: |
CLARISSA SILVA PIRES DE CASTRO, Cenargen; LUZIA HELENA CORREA LIMA, Cenargen; ANA CECILIA RIBEIRO DE CASTRO, CNPAT; ALINE SARAIVA TEIXEIRA, CNPAT; RAIMUNDO NONATO MARTINS DE SOUZA, CNPAT. |
Título: |
Diagnóstico do banco ativo de germoplasma de caju da Embrapa com relação a requisitos de qualidade. |
Ano de publicação: |
2016 |
Fonte/Imprenta: |
In: CONGRESSO BRASILEIRO DE RECURSOS GENÉTICOS, 4., 2016, Curitiba. Recursos genéticos no Brasil: a base para o desenvolvimento sustentável: anais. Brasília, DF: Sociedade Brasileira de Recursos Genéticos, 2016. |
Idioma: |
Português |
Palavras-Chave: |
BAG de Caju; Requisitos de qualidade. |
Thesagro: |
Diagnostico. |
Categoria do assunto: |
-- |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/158919/1/Anais-CBRG-2016-pg-362.pdf
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Marc: |
LEADER 00762nam a2200181 a 4500 001 2068442 005 2024-06-13 008 2016 bl uuuu u00u1 u #d 100 1 $aCASTRO, C. S. P. de 245 $aDiagnóstico do banco ativo de germoplasma de caju da Embrapa com relação a requisitos de qualidade.$h[electronic resource] 260 $aIn: CONGRESSO BRASILEIRO DE RECURSOS GENÉTICOS, 4., 2016, Curitiba. Recursos genéticos no Brasil: a base para o desenvolvimento sustentável: anais. Brasília, DF: Sociedade Brasileira de Recursos Genéticos$c2016 650 $aDiagnostico 653 $aBAG de Caju 653 $aRequisitos de qualidade 700 1 $aLIMA, L. H. C. 700 1 $aCASTRO, A. C. R. de 700 1 $aTEIXEIRA, A. S. 700 1 $aSOUZA, R. N. M. de
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Embrapa Recursos Genéticos e Biotecnologia (CENARGEN) |
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