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Registro Completo |
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Biblioteca(s): |
Embrapa Semiárido. |
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Data corrente: |
03/07/1996 |
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Data da última atualização: |
29/05/2018 |
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Autoria: |
GUIMARAES FILHO, C. |
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Afiliação: |
CLÓVIS GUIMARÃES FILHO, CPATSA. |
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Título: |
Reproductive performance as affected by lactation status and body composition in beff cows. |
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Ano de publicação: |
1981 |
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Fonte/Imprenta: |
Tucson: University of Arizona, 1981. |
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Páginas: |
105 p. |
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Idioma: |
Inglês |
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Notas: |
Dissertação Mestrado. |
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Conteúdo: |
The effects of lactation status and body composition on reproductive perfpr,amce were studied in seventy=one mature Brangus cows, thirty-eight non-lactating (NL) and thirty-three in late lactations (L). During Phase I (192 days) both groups were fed a low energy diet (50% NRC recommendation). During Phase II (65 days) a high energy diet (120% NRC recommendation( was fed to 19 of the non-lactating cows (NL-H) and to 17 of the lactating cows (L-H). The other non-lactating and lactating cows remained on the low energy diet (NL-L and L-L). Energy restriction durint Phase I did not affect ovarian activity although losses in body weight and condition were substantial. Rapid changes in dlcy 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). Treatment groups did not differ (P> .05) in conception rate, days to breeding, days to conception, conception at first service, and number of services per conception. It appears that changes in body weight and composition have little effect of likekihood of pregnancy in non-lactating and latelactating beef cows once estrous cycles are initiated. |
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Palavras-Chave: |
Beff cows; Bovino de corte. |
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Thesagro: |
Lactação; Produção Animal; Reprodução. |
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Thesaurus Nal: |
animal production; lactation; reproduction. |
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Categoria do assunto: |
L Ciência Animal e Produtos de Origem Animal |
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Marc: |
LEADER 01859nam a2200229 a 4500
001 1132179
005 2018-05-29
008 1981 bl uuuu m 00u1 u #d
100 1 $aGUIMARAES FILHO, C.
245 $aReproductive performance as affected by lactation status and body composition in beff cows.
260 $aTucson: University of Arizona$c1981
300 $a105 p.
500 $aDissertação Mestrado.
520 $aThe effects of lactation status and body composition on reproductive perfpr,amce were studied in seventy=one mature Brangus cows, thirty-eight non-lactating (NL) and thirty-three in late lactations (L). During Phase I (192 days) both groups were fed a low energy diet (50% NRC recommendation). During Phase II (65 days) a high energy diet (120% NRC recommendation( was fed to 19 of the non-lactating cows (NL-H) and to 17 of the lactating cows (L-H). The other non-lactating and lactating cows remained on the low energy diet (NL-L and L-L). Energy restriction durint Phase I did not affect ovarian activity although losses in body weight and condition were substantial. Rapid changes in dlcy 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). Treatment groups did not differ (P> .05) in conception rate, days to breeding, days to conception, conception at first service, and number of services per conception. It appears that changes in body weight and composition have little effect of likekihood of pregnancy in non-lactating and latelactating beef cows once estrous cycles are initiated.
650 $aanimal production
650 $alactation
650 $areproduction
650 $aLactação
650 $aProdução Animal
650 $aReprodução
653 $aBeff cows
653 $aBovino de corte
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Registro original: |
Embrapa Semiárido (CPATSA) |
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Registro Completo
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Biblioteca(s): |
Embrapa Semiárido; Embrapa Tabuleiros Costeiros. |
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Data corrente: |
20/02/2015 |
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Data da última atualização: |
12/02/2016 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
B - 1 |
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Autoria: |
MARTINELE, I.; SILVA, L. F.; D´AGOSTO, M.; MUNIZ, E. N.; SA, J. L. de; SANTOS, G. R. de A. |
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Afiliação: |
ISABEL MARTINELE, Universidade Federal de Juiz de Fora, Juiz de Fora; LUCAS FEITOSA SILVA, Universidade Federal de Sergipe; MARTA D´AGOSTO, Universidade Federal de Juiz de Fora; EVANDRO NEVES MUNIZ, CPATC; JOSE LUIZ DE SA, CPATSA; GLADSTON RAFAEL DE ARRUDA SANTOS, Universidade Federal de Juiz de Fora. |
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Título: |
Abundance and diversity of rumen protozoa in lambs fed Gliricidia sepium silage. |
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Ano de publicação: |
2014 |
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Fonte/Imprenta: |
Revista Brasileira de Zootecnia, v.43, n. 8, p. 436-439, 2014. |
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Idioma: |
Inglês |
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Conteúdo: |
The objective of this study was to evaluate changes in ruminal protozoa in lambs after partial replacement of feed concentrates in their diets with Gliricidia sepiumsilage. Twenty-four male Santa Ines lambs with an average initial weight of 14.5 kg were used. The experimental design was completely randomized, with four treatments and six replications. Treatments (given as a percentage of dry matter) were as follows: control - corn silage (600 g kg ?1 as fed) + concentrate (400 g kg ?1 as fed) ; GS133 - corn silage (600 g kg?1as fed) +G. sepiumsilage (133g kg?1as fed) + concentrate (267g kg?1as fed);GS267 - corn silage (600g kg?1as fed) +G. sepiumsilage (267g kg?1as fed)+ concentrate (133g kg?1as fed); and GS400 -corn silage (600g kg?1as fed) +G. sepiumsilage (400g kg?1as fed). Samples of rumen contents were obtained at slaughter,and analysis revealed the presence of nine genera of rumen protozoa that were present in all animals, with the exception of Enoploplastron and Eremoplastron . There were no significant differences in the average total numbers of rumen ciliates or in the composition of species between lambs. Inclusion of up to 400 gkg ?1(as fed )G. sepiumsilage in the diet of lambs does not affect the diversity or density of rumen protozoa |
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Palavras-Chave: |
Microorganismo ruminal; Protein supplementation; Proução animal; Rumen microorganism; Suplementação de proteína. |
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Thesagro: |
Cordeiro; Ruminante. |
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Thesaurus NAL: |
Animal production; lambs. |
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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/item/138845/1/Ze-Luis-2014.pdf
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Marc: |
LEADER 02108naa a2200289 a 4500
001 2036750
005 2016-02-12
008 2014 bl uuuu u00u1 u #d
100 1 $aMARTINELE, I.
245 $aAbundance and diversity of rumen protozoa in lambs fed Gliricidia sepium silage.$h[electronic resource]
260 $c2014
520 $aThe objective of this study was to evaluate changes in ruminal protozoa in lambs after partial replacement of feed concentrates in their diets with Gliricidia sepiumsilage. Twenty-four male Santa Ines lambs with an average initial weight of 14.5 kg were used. The experimental design was completely randomized, with four treatments and six replications. Treatments (given as a percentage of dry matter) were as follows: control - corn silage (600 g kg ?1 as fed) + concentrate (400 g kg ?1 as fed) ; GS133 - corn silage (600 g kg?1as fed) +G. sepiumsilage (133g kg?1as fed) + concentrate (267g kg?1as fed);GS267 - corn silage (600g kg?1as fed) +G. sepiumsilage (267g kg?1as fed)+ concentrate (133g kg?1as fed); and GS400 -corn silage (600g kg?1as fed) +G. sepiumsilage (400g kg?1as fed). Samples of rumen contents were obtained at slaughter,and analysis revealed the presence of nine genera of rumen protozoa that were present in all animals, with the exception of Enoploplastron and Eremoplastron . There were no significant differences in the average total numbers of rumen ciliates or in the composition of species between lambs. Inclusion of up to 400 gkg ?1(as fed )G. sepiumsilage in the diet of lambs does not affect the diversity or density of rumen protozoa
650 $aAnimal production
650 $alambs
650 $aCordeiro
650 $aRuminante
653 $aMicroorganismo ruminal
653 $aProtein supplementation
653 $aProução animal
653 $aRumen microorganism
653 $aSuplementação de proteína
700 1 $aSILVA, L. F.
700 1 $aD´AGOSTO, M.
700 1 $aMUNIZ, E. N.
700 1 $aSA, J. L. de
700 1 $aSANTOS, G. R. de A.
773 $tRevista Brasileira de Zootecnia$gv.43, n. 8, p. 436-439, 2014.
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