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Registro Completo |
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Biblioteca(s): |
Embrapa Pantanal. |
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Data corrente: |
18/02/2015 |
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Data da última atualização: |
29/01/2016 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
OLIVEIRA, N. M. de; REZENDE, M. P. G. de; ABREU, U. G. P. de; ROSA, A. do N.; STERZA, F. de A. M.; LEÃO FIALHO, A. L. |
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Afiliação: |
NICÁCIA MONTEIRO DE OLIVEIRA, UEMS; MARCOS PAULO GONÇALVES DE REZENDE, UEMS; URBANO GOMES PINTO DE ABREU, CPAP; ANTONIO DO NASCIMENTO ROSA, CNPGC; FABIANA DE ANDRADE MELO STERZA, UEMS; ANDRÉ LUIZ LEÃO FIALHO, UEMS. |
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Título: |
Environmental effects on reproductive performance of Nellore cows widely raised in the Cerrado/Pantanal ecotone. |
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Ano de publicação: |
2015 |
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Fonte/Imprenta: |
Acta Scientiarum. Animal Sciences, Maringá, v. 37, n. 1, p. 77-82, jan.-mar., 2015. |
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ISSN: |
1806-8672 |
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Idioma: |
Inglês |
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Conteúdo: |
We analyzed the pregnancy rate (PR) and birth rate (BR) of Nellore cows raised extensively in the Cerrado/Pantanal during 4 mating seasons (2009?2012), assessing the relationship with the temperature and humidity index (THI) and the effect of the year and breeding season. We used information from 2,116 cows, which were categorized as either multiparous (n = 1430), primiparous (n = 338), or nulliparous (n = 348). In the months of the breeding season (December?February), temperature and relative humidity data were collected to calculate the temperature and humidity index (THI). An ANOVA was performed with a model that included sources of variation from the fixed effects of category of cow and year on PR and BR; and a linear regression analysis and correlation between THI and PR and BR. We observed a significant effect (p < 0.05) on PR. We classified the average across breeding seasons as a moderate THI. The THI of the breeding seasons showed high and significant (p < 0.05) effects only on the nulliparous BR, and low values in other categories. It is concluded that the seasonal THI was not related to the performance of cows, except BR in nulliparous cows. |
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Palavras-Chave: |
Bovino de corte; Efeito ambiental; Environmental effect. |
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Thesagro: |
Eficiência Reprodutiva; Gado nelore; Matriz; Prenhez; Reprodução animal. |
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Thesaurus Nal: |
beef cattle; reproductive efficiency. |
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Categoria do assunto: |
L Ciência Animal e Produtos de Origem Animal |
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Marc: |
LEADER 02121naa a2200313 a 4500
001 2008910
005 2016-01-29
008 2015 bl uuuu u00u1 u #d
022 $a1806-8672
100 1 $aOLIVEIRA, N. M. de
245 $aEnvironmental effects on reproductive performance of Nellore cows widely raised in the Cerrado/Pantanal ecotone.
260 $c2015
520 $aWe analyzed the pregnancy rate (PR) and birth rate (BR) of Nellore cows raised extensively in the Cerrado/Pantanal during 4 mating seasons (2009?2012), assessing the relationship with the temperature and humidity index (THI) and the effect of the year and breeding season. We used information from 2,116 cows, which were categorized as either multiparous (n = 1430), primiparous (n = 338), or nulliparous (n = 348). In the months of the breeding season (December?February), temperature and relative humidity data were collected to calculate the temperature and humidity index (THI). An ANOVA was performed with a model that included sources of variation from the fixed effects of category of cow and year on PR and BR; and a linear regression analysis and correlation between THI and PR and BR. We observed a significant effect (p < 0.05) on PR. We classified the average across breeding seasons as a moderate THI. The THI of the breeding seasons showed high and significant (p < 0.05) effects only on the nulliparous BR, and low values in other categories. It is concluded that the seasonal THI was not related to the performance of cows, except BR in nulliparous cows.
650 $abeef cattle
650 $areproductive efficiency
650 $aEficiência Reprodutiva
650 $aGado nelore
650 $aMatriz
650 $aPrenhez
650 $aReprodução animal
653 $aBovino de corte
653 $aEfeito ambiental
653 $aEnvironmental effect
700 1 $aREZENDE, M. P. G. de
700 1 $aABREU, U. G. P. de
700 1 $aROSA, A. do N.
700 1 $aSTERZA, F. de A. M.
700 1 $aLEÃO FIALHO, A. L.
773 $tActa Scientiarum. Animal Sciences, Maringá$gv. 37, n. 1, p. 77-82, jan.-mar., 2015.
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Registro original: |
Embrapa Pantanal (CPAP) |
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