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| 1. |  | DOWSON DAY, M. J.; ASHURST, J. L.; WATTS, J.; DIXON, R. A.; MERRICK, M. J. Studies of the potential for expression of nitrogenase Fe-protein in cells of higher plants. In: Nitrogen Fixation. Proceedings of the International Symposium with Non-legumes, Florence, Italy., v., p.659-669, 1991.| Biblioteca(s): Embrapa Agrobiologia. |
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| Registros recuperados : 1 | |
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Registro Completo
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Biblioteca(s): |
Embrapa Semiárido; Embrapa Unidades Centrais. |
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Data corrente: |
04/07/1996 |
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Data da última atualização: |
20/03/1998 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
Nacional - B |
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Autoria: |
GUIMARAES FILHO, C.; RAY, D. E. |
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Título: |
Reproductive performance as affected by lactation status and body fat in beef cows. |
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Ano de publicação: |
1985 |
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Fonte/Imprenta: |
Pesquisa Agropecuaria Brasileira, Brasilia, v.20, n.6, p.699-705, jun. 1985. |
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Idioma: |
Inglês |
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Conteúdo: |
Seventy-one mature Brangus cows, 38 nonlactating (NL) and 33 in late stage of lactation (L) were fed for 192 days (Phase I) a low energy diet (L). During Phase II (65 days) 19 NL and 17 L cows were fed a high energy diet (H). The other nonlactating (19) and lactating (16) cows remained on the low energy diet. Energy restriction during Phase I did not affect (P>0.05) cyclic ovarian activity although losses in body weight and condition were substantial. Rapid changes in body weight, condition, and percent empty body lipid (EBLP) during Phase II did not substantially influence fertility, although a five-fold difference in EBLP was observed (NL-H vs.L-L). Treatmente groups did not differ (P>0.05) in conception rate, days from the beginning of the breeding season to breeding and to conception, conception at first service, and number of services per conception. Values observed for these parameters for NL-H, L-H, NL-L; AND L-L groups were respectively: 68.4%, 13.2, 23.3, 36.8%, and 1.68; 82.4%, 12.7, 19.5, 58.8% and 1.29; 68,4%, 10.2, 17.4, 47.4% and 1.41; 68.8%, 12.4, 19.5, 43.7% and 1.50. |
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Palavras-Chave: |
Amamentacao; Beff cows; Body lipid; Concepcao; Lipideo. |
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Thesagro: |
Bovino; Lactação; Lipídio; Produção Animal; Reprodução. |
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Thesaurus NAL: |
animal production; conception; lactation; reproduction; suckling. |
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Categoria do assunto: |
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L Ciência Animal e Produtos de Origem Animal |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/144064/1/7293-1.pdf
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Marc: |
LEADER 01930naa a2200313 a 4500
001 1104553
005 1998-03-20
008 1985 bl uuuu u00u1 u #d
100 1 $aGUIMARAES FILHO, C.
245 $aReproductive performance as affected by lactation status and body fat in beef cows.
260 $c1985
520 $aSeventy-one mature Brangus cows, 38 nonlactating (NL) and 33 in late stage of lactation (L) were fed for 192 days (Phase I) a low energy diet (L). During Phase II (65 days) 19 NL and 17 L cows were fed a high energy diet (H). The other nonlactating (19) and lactating (16) cows remained on the low energy diet. Energy restriction during Phase I did not affect (P>0.05) cyclic ovarian activity although losses in body weight and condition were substantial. Rapid changes in body weight, condition, and percent empty body lipid (EBLP) during Phase II did not substantially influence fertility, although a five-fold difference in EBLP was observed (NL-H vs.L-L). Treatmente groups did not differ (P>0.05) in conception rate, days from the beginning of the breeding season to breeding and to conception, conception at first service, and number of services per conception. Values observed for these parameters for NL-H, L-H, NL-L; AND L-L groups were respectively: 68.4%, 13.2, 23.3, 36.8%, and 1.68; 82.4%, 12.7, 19.5, 58.8% and 1.29; 68,4%, 10.2, 17.4, 47.4% and 1.41; 68.8%, 12.4, 19.5, 43.7% and 1.50.
650 $aanimal production
650 $aconception
650 $alactation
650 $areproduction
650 $asuckling
650 $aBovino
650 $aLactação
650 $aLipídio
650 $aProdução Animal
650 $aReprodução
653 $aAmamentacao
653 $aBeff cows
653 $aBody lipid
653 $aConcepcao
653 $aLipideo
700 1 $aRAY, D. E.
773 $tPesquisa Agropecuaria Brasileira, Brasilia$gv.20, n.6, p.699-705, jun. 1985.
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Registro original: |
Embrapa Unidades Centrais (AI-SEDE) |
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