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 | Acesso ao texto completo restrito à biblioteca da Embrapa Pecuária Sudeste. Para informações adicionais entre em contato com cppse.biblioteca@embrapa.br. |
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Registro Completo |
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Biblioteca(s): |
Embrapa Pecuária Sudeste. |
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Data corrente: |
16/11/2017 |
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Data da última atualização: |
15/12/2023 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
PANTOJA, M. H. de A.; ESTEVES, S. N.; JACINTO, M. A. C.; PEZZOPANE, J. R. M.; PAZ, C. C. P. de; SILVA, J. A. R. da; LOURENÇO JUNIOR, J. de B.; BRANDAO, F. Z.; MOURA, A. B. B.; ROMANELLO, N.; BOTTA, D.; GARCIA, A. R. |
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Afiliação: |
Messy Hannear de Andrade Pantoja, UFPA; SERGIO NOVITA ESTEVES, CPPSE; MANUEL ANTONIO CHAGAS JACINTO, CPPSE; JOSE RICARDO MACEDO PEZZOPANE, CPPSE; Cláudia Cristina Paro de Paz, Instituto de Zootecnia; Jamile Andréa Rodrigues da Silva, UFRA; José de Brito Lourenço Junior, UFPA; Felipe Zandonadi Brandão, UFF; Ana Beatriz Bossois Moura, UFF; Narian Romanello, UFPA; Daniela Botta, UFPA; ALEXANDRE ROSSETTO GARCIA, CPPSE. |
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Título: |
Thermoregulation of male sheep of indigenous or exotic breeds in a tropical environment. |
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Ano de publicação: |
2017 |
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Fonte/Imprenta: |
Journal of Thermal Biology, v. 69, p. 302-310, 2017. |
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DOI: |
http://dx.doi.org/10.1016/j.jtherbio.2017.09.002 |
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Idioma: |
Inglês |
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Conteúdo: |
Climate change has intensified the frequency of heat waves in the world, thereby exposing farm animals to stressful conditions. For better productive performance it is important to identify the most resilient genotypes. Thus, our objective was to evaluate the thermoregulatory responses of rams of tropical indigenous (Morada Nova and Santa Inês) and exotic breeds (Dorper and Texel), by monitoring the environmental and physiological indicators related to heat tolerance. The experiment was carried out in a tropical climate region (Cwa), in Brazil, for twelve months, which comprised spring, summer, autumn and winter. Thirty-three rams were divided into groups: Morada Nova (MN; n=8, red-coat), Santa Inês (SI; n=9, black-coat), Dorper (DO; n=8, white-coat) and Texel (TX; n=8, white-coat). The microclimatic variables were monitored, and the THI and BGHI comfort indices were calculated. Coat thickness and body surface temperatures were measured monthly, and serum triiodothyronine-T3 measurements and complete blood tests were performed. The physiological variables were evaluated every fifteen days and skin micro-biopsies were performed in the summer and winter for histological evaluation. During the warmer seasons, the THI and BGHI reached values that indicated thermal discomfort. TXshowed higher coat thickness throughout the year, increased physiological variables related to thermolysis, and reduced T3 (P < 0.05). The internal temperature was permanently lower in the MN, SI and DO (P < 0.05). The body surface temperatures were affected by the coat characteristics and wool length. Hematological parameters varied in the seasons with the highest thermal conditions (P < 0.05). The MN showed larger sweat glands, while the area occupied by the sweat glands was higher in the SI. The DO showed higher hair density in the summer and winter (P < 0.05). The results indicated that the MN, SI and DO breeds overcome the thermal challenge more easily throughout the seasons due to specific adaptive morphological and physiological characteristics. MenosClimate change has intensified the frequency of heat waves in the world, thereby exposing farm animals to stressful conditions. For better productive performance it is important to identify the most resilient genotypes. Thus, our objective was to evaluate the thermoregulatory responses of rams of tropical indigenous (Morada Nova and Santa Inês) and exotic breeds (Dorper and Texel), by monitoring the environmental and physiological indicators related to heat tolerance. The experiment was carried out in a tropical climate region (Cwa), in Brazil, for twelve months, which comprised spring, summer, autumn and winter. Thirty-three rams were divided into groups: Morada Nova (MN; n=8, red-coat), Santa Inês (SI; n=9, black-coat), Dorper (DO; n=8, white-coat) and Texel (TX; n=8, white-coat). The microclimatic variables were monitored, and the THI and BGHI comfort indices were calculated. Coat thickness and body surface temperatures were measured monthly, and serum triiodothyronine-T3 measurements and complete blood tests were performed. The physiological variables were evaluated every fifteen days and skin micro-biopsies were performed in the summer and winter for histological evaluation. During the warmer seasons, the THI and BGHI reached values that indicated thermal discomfort. TXshowed higher coat thickness throughout the year, increased physiological variables related to thermolysis, and reduced T3 (P < 0.05). The internal temperature was permanently lower in the MN, SI and DO (... Mostrar Tudo |
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Palavras-Chave: |
ILPF; Infrared thermography. |
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Thesaurus Nal: |
animal welfare; heat stress. |
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Categoria do assunto: |
X Pesquisa, Tecnologia e Engenharia |
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Marc: |
LEADER 03010naa a2200313 a 4500
001 2079902
005 2023-12-15
008 2017 bl uuuu u00u1 u #d
024 7 $ahttp://dx.doi.org/10.1016/j.jtherbio.2017.09.002$2DOI
100 1 $aPANTOJA, M. H. de A.
245 $aThermoregulation of male sheep of indigenous or exotic breeds in a tropical environment.$h[electronic resource]
260 $c2017
520 $aClimate change has intensified the frequency of heat waves in the world, thereby exposing farm animals to stressful conditions. For better productive performance it is important to identify the most resilient genotypes. Thus, our objective was to evaluate the thermoregulatory responses of rams of tropical indigenous (Morada Nova and Santa Inês) and exotic breeds (Dorper and Texel), by monitoring the environmental and physiological indicators related to heat tolerance. The experiment was carried out in a tropical climate region (Cwa), in Brazil, for twelve months, which comprised spring, summer, autumn and winter. Thirty-three rams were divided into groups: Morada Nova (MN; n=8, red-coat), Santa Inês (SI; n=9, black-coat), Dorper (DO; n=8, white-coat) and Texel (TX; n=8, white-coat). The microclimatic variables were monitored, and the THI and BGHI comfort indices were calculated. Coat thickness and body surface temperatures were measured monthly, and serum triiodothyronine-T3 measurements and complete blood tests were performed. The physiological variables were evaluated every fifteen days and skin micro-biopsies were performed in the summer and winter for histological evaluation. During the warmer seasons, the THI and BGHI reached values that indicated thermal discomfort. TXshowed higher coat thickness throughout the year, increased physiological variables related to thermolysis, and reduced T3 (P < 0.05). The internal temperature was permanently lower in the MN, SI and DO (P < 0.05). The body surface temperatures were affected by the coat characteristics and wool length. Hematological parameters varied in the seasons with the highest thermal conditions (P < 0.05). The MN showed larger sweat glands, while the area occupied by the sweat glands was higher in the SI. The DO showed higher hair density in the summer and winter (P < 0.05). The results indicated that the MN, SI and DO breeds overcome the thermal challenge more easily throughout the seasons due to specific adaptive morphological and physiological characteristics.
650 $aanimal welfare
650 $aheat stress
653 $aILPF
653 $aInfrared thermography
700 1 $aESTEVES, S. N.
700 1 $aJACINTO, M. A. C.
700 1 $aPEZZOPANE, J. R. M.
700 1 $aPAZ, C. C. P. de
700 1 $aSILVA, J. A. R. da
700 1 $aLOURENÇO JUNIOR, J. de B.
700 1 $aBRANDAO, F. Z.
700 1 $aMOURA, A. B. B.
700 1 $aROMANELLO, N.
700 1 $aBOTTA, D.
700 1 $aGARCIA, A. R.
773 $tJournal of Thermal Biology$gv. 69, p. 302-310, 2017.
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Registro original: |
Embrapa Pecuária Sudeste (CPPSE) |
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Biblioteca(s): |
Embrapa Gado de Leite. |
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Data corrente: |
20/12/2022 |
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Data da última atualização: |
10/04/2024 |
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Tipo da produção científica: |
Resumo em Anais de Congresso |
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Autoria: |
CARNEIRO, G. B.; GONÇALVES, M. S.; CUSTÓDIO, D. A. da C.; GUIMARÃES, A. S.; COSTA, G. M. da; DORNELES, E. M. S. |
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Afiliação: |
GIOVANNA BOTELHO CARNEIRO; MAYSA SERPA GONÇALVES, UNIVERSIDADE FEDERAL DE LAVRAS; DIRCÉIA APARECIDA DA COSTA CUSTÓDIO, UNIVERSIDADE FEDERAL DE LAVRAS; ALESSANDRO DE SA GUIMARAES, CNPGL; GERALDO MÁRCIO DA COSTA, UNIVERSIDADE FEDERAL DE LAVRAS; ELAINE MARIA SELES DORNELES, UNIVERSIDADE FEDERAL DE LAVRAS. |
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Título: |
Resistência à colistina em amostras de Escherichia coli isolada de leite e fezes bovinas. |
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Ano de publicação: |
2022 |
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Fonte/Imprenta: |
In: CONGRESSO DE INICIAÇÃO CIENTÍFICA DA UFLA, 35., 2022, Lavras. Resumos. Lavras: Universidade Federal de Lavras, 2022. |
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Idioma: |
Português |
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Palavras-Chave: |
Pecuária leiteira; Polimixina E; Resistência antimicrobiana. |
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Thesagro: |
Gado Leiteiro. |
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Categoria do assunto: |
L Ciência Animal e Produtos de Origem Animal |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/doc/1150018/1/Resistencia-a-colistina-em-amostras-de-Escherichia-coli-isolada-de-leite-e-fezes-bovinas.pdf
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Marc: |
LEADER 00736nam a2200205 a 4500
001 2150018
005 2024-04-10
008 2022 bl uuuu u00u1 u #d
100 1 $aCARNEIRO, G. B.
245 $aResistência à colistina em amostras de Escherichia coli isolada de leite e fezes bovinas.$h[electronic resource]
260 $aIn: CONGRESSO DE INICIAÇÃO CIENTÍFICA DA UFLA, 35., 2022, Lavras. Resumos. Lavras: Universidade Federal de Lavras$c2022
650 $aGado Leiteiro
653 $aPecuária leiteira
653 $aPolimixina E
653 $aResistência antimicrobiana
700 1 $aGONÇALVES, M. S.
700 1 $aCUSTÓDIO, D. A. da C.
700 1 $aGUIMARÃES, A. S.
700 1 $aCOSTA, G. M. da
700 1 $aDORNELES, E. M. S.
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Embrapa Gado de Leite (CNPGL) |
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