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Registro Completo |
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Biblioteca(s): |
Embrapa Suínos e Aves. |
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Data corrente: |
05/11/2020 |
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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: |
ROCHA, R. F. B.; BAENA, M. M.; ESTOPA, A. de C.; GERVASIO, I. C.; IBELLI, A. M. G.; GIONBELLI, T. R. S.; GIONBELLI, M. P.; FREITAS, R. T. F. de; MEIRELLES, S. L. C. |
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Afiliação: |
RENATA DE FÁTIMA BRETANHA ROCHA, UFL; MARIELLE MOURA BAENA, UFL; ALINE DE CÁSSIA ESTOPA, UFL; IZALLY CARVALHO GERVÁSIO, ESALQ; ADRIANA MERCIA GUARATINI IBELLI, CNPSA; TATHYANE RAMALHO SANTOS GIONBELLI, UFL; MATEUS PIES GIONBELLI, UFL; RILKE TADEU FONSECA DE FREITAS, UFL; SARAH LAGUNA CONCEIÇÃO MEIRELLES, UFL. |
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Título: |
Differential expression of HSF1 and HSPA6 genes and physiological responses in Angus and Simmental cattle breeds. |
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Ano de publicação: |
2019 |
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Fonte/Imprenta: |
Journal of Thermal Biology, v. 84, p. 92-98, 2019. |
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DOI: |
https://doi.org/10.1016/j.jtherbio.2019.06.002 |
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Idioma: |
Alemão |
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Conteúdo: |
Abstract: The aim of this study was to identify whether more and less adapted Angus and Simmental cattle differed in physiological responses and expression of the heat shock factor 1 (HSF1) and the heat shock 70 kDa protein 6 (HSPA6), when subjected to heat stress. Thirty bulls (n=15 ANG; n=15 SIM), extremes ?more adapted" and "less adapted" within each breed were selected to the heat tolerance test. They were selected according to an index based on the average of the respiratory rate obtained on two hot summer days from one hundred bulls. Before the heat tolerance test day, animals were taken to a paddock with water, grass and shade until 7 a.m. of the following day for morning measurements. They were kept in the barn without access to water and shade until 1 p.m. for the afternoon measurements. Respiratory rate in the morning (MRR) and afternoon (ARR), hair coat surface temperature in the morning (MST) and afternoon (AST), rectal temperature in the morning (MRT) and afternoon (ART) were measured and blood samples were collected for expression analysis of the HSF1 and HSPA6 genes. The MIXED procedure of SAS was used for all statistical analysis. The more adapted Simmental group had lesser values of MRR (P=0.023) and MRT (P=0.095), but there was no difference within Angus breed. The ARR was greater (P=0.004) in less adapted animals for both breeds. The ART was lower in the Simmental breed (P < 0.001). Less adapted had greater levels of mRNA of HSF1 (P=0.06) and HSPA6 (P=0.09). In conclusion, respiratory rate, rectal temperature and expression of the HSF1 and HSPA6 genes can be indicators of thermotolerance in taurine cattle. Both breeds show physiologically similar responses under heat stress conditions. MenosAbstract: The aim of this study was to identify whether more and less adapted Angus and Simmental cattle differed in physiological responses and expression of the heat shock factor 1 (HSF1) and the heat shock 70 kDa protein 6 (HSPA6), when subjected to heat stress. Thirty bulls (n=15 ANG; n=15 SIM), extremes ?more adapted" and "less adapted" within each breed were selected to the heat tolerance test. They were selected according to an index based on the average of the respiratory rate obtained on two hot summer days from one hundred bulls. Before the heat tolerance test day, animals were taken to a paddock with water, grass and shade until 7 a.m. of the following day for morning measurements. They were kept in the barn without access to water and shade until 1 p.m. for the afternoon measurements. Respiratory rate in the morning (MRR) and afternoon (ARR), hair coat surface temperature in the morning (MST) and afternoon (AST), rectal temperature in the morning (MRT) and afternoon (ART) were measured and blood samples were collected for expression analysis of the HSF1 and HSPA6 genes. The MIXED procedure of SAS was used for all statistical analysis. The more adapted Simmental group had lesser values of MRR (P=0.023) and MRT (P=0.095), but there was no difference within Angus breed. The ARR was greater (P=0.004) in less adapted animals for both breeds. The ART was lower in the Simmental breed (P < 0.001). Less adapted had greater levels of mRNA of HSF1 (P=0.06) and HSPA6 (P=0.09... Mostrar Tudo |
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Palavras-Chave: |
Adaptabilidade; Estresse por calor; Gado Angus; Gado taurino; Heat shock 70 kDa protein 6; Heat shock factor 1; HSF1; HSP; HSPA6. |
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Thesagro: |
Clima Tropical; Gado Simental; Genética Animal; Pecuária; Produção Animal. |
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Thesaurus Nal: |
Angus; Animal genetics; Animal production; Cattle breeds; Heat shock proteins; Livestock; Simmental. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 03109naa a2200481 a 4500
001 2126312
005 2020-11-05
008 2019 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.1016/j.jtherbio.2019.06.002$2DOI
100 1 $aROCHA, R. F. B.
245 $aDifferential expression of HSF1 and HSPA6 genes and physiological responses in Angus and Simmental cattle breeds.$h[electronic resource]
260 $c2019
520 $aAbstract: The aim of this study was to identify whether more and less adapted Angus and Simmental cattle differed in physiological responses and expression of the heat shock factor 1 (HSF1) and the heat shock 70 kDa protein 6 (HSPA6), when subjected to heat stress. Thirty bulls (n=15 ANG; n=15 SIM), extremes ?more adapted" and "less adapted" within each breed were selected to the heat tolerance test. They were selected according to an index based on the average of the respiratory rate obtained on two hot summer days from one hundred bulls. Before the heat tolerance test day, animals were taken to a paddock with water, grass and shade until 7 a.m. of the following day for morning measurements. They were kept in the barn without access to water and shade until 1 p.m. for the afternoon measurements. Respiratory rate in the morning (MRR) and afternoon (ARR), hair coat surface temperature in the morning (MST) and afternoon (AST), rectal temperature in the morning (MRT) and afternoon (ART) were measured and blood samples were collected for expression analysis of the HSF1 and HSPA6 genes. The MIXED procedure of SAS was used for all statistical analysis. The more adapted Simmental group had lesser values of MRR (P=0.023) and MRT (P=0.095), but there was no difference within Angus breed. The ARR was greater (P=0.004) in less adapted animals for both breeds. The ART was lower in the Simmental breed (P < 0.001). Less adapted had greater levels of mRNA of HSF1 (P=0.06) and HSPA6 (P=0.09). In conclusion, respiratory rate, rectal temperature and expression of the HSF1 and HSPA6 genes can be indicators of thermotolerance in taurine cattle. Both breeds show physiologically similar responses under heat stress conditions.
650 $aAngus
650 $aAnimal genetics
650 $aAnimal production
650 $aCattle breeds
650 $aHeat shock proteins
650 $aLivestock
650 $aSimmental
650 $aClima Tropical
650 $aGado Simental
650 $aGenética Animal
650 $aPecuária
650 $aProdução Animal
653 $aAdaptabilidade
653 $aEstresse por calor
653 $aGado Angus
653 $aGado taurino
653 $aHeat shock 70 kDa protein 6
653 $aHeat shock factor 1
653 $aHSF1
653 $aHSP
653 $aHSPA6
700 1 $aBAENA, M. M.
700 1 $aESTOPA, A. de C.
700 1 $aGERVASIO, I. C.
700 1 $aIBELLI, A. M. G.
700 1 $aGIONBELLI, T. R. S.
700 1 $aGIONBELLI, M. P.
700 1 $aFREITAS, R. T. F. de
700 1 $aMEIRELLES, S. L. C.
773 $tJournal of Thermal Biology$gv. 84, p. 92-98, 2019.
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| 10. |  | SILVA, J. A. A.; SANTOS, M. A. dos; KARAM, D. Monitoramento espaço-temporal de gramíneas exóticas num remanescente de cerradão, Sete Lagoas, MG. In: CONGRESSO DE ECOLOGIA DO BRASIL, 10.; SIMPÓSIO DE SUSTENTABILIDADE, 1., 2011, São Lourenço. Sustentabilidade: anais. São Paulo: Sociedade de Ecologia do Brasil, 2011. 1 CD-ROM.| Tipo: Artigo em Anais de Congresso |
| Biblioteca(s): Embrapa Milho e Sorgo. |
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| 11. | | SANTOS, M. A.; MATTOSO, L. H. C.; DEFÁCIO, R. Desenvolvimento de compósitos condutores elétricos de borracha natural com composto condutivo. In: CONGRESSO BRASILEIRO DE ANÁLISE TÉRMICA E CALORIMETRIA - CBECIMAT, 13., SEMINÁRIO DE MATERIAIS NO SETOR ELÉTRICO - SEMEL, 6., 1998, Curitiba. [Anais]: programa preliminar... Curitiba: LAC-TEC, 1998. p. 3968-3974, ref. PO PE 847. 1 CD-ROM.| Biblioteca(s): Embrapa Instrumentação. |
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