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Registro Completo |
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Biblioteca(s): |
Embrapa Gado de Leite. |
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Data corrente: |
26/10/2018 |
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Data da última atualização: |
24/01/2023 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
RIBEIRO, C. G. S.; LOPES, F. C. F.; RODRIGUEZ, N. M.; GAMA, M. A. S. da; MORENZ, M. J. F. |
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Afiliação: |
Carlos Gustavo Santos Ribeiro, IFB; FERNANDO CESAR FERRAZ LOPES, CNPGL; Norberto Mario Rodriguez, UFMG; MARCO ANTONIO SUNDFELD DA GAMA, CNPGL; MIRTON JOSE FROTA MORENZ, CNPGL. |
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Título: |
Ruminal fermentation and degradation, kinetic flow of the digesta and milk fatty acid composition of cows fed chopped elephantgrass supplemented with soybean oil. |
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Ano de publicação: |
2018 |
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Fonte/Imprenta: |
Semina: Ciências Agrárias, v. 39, n. 4, p. 1775-1794, 2018. |
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Idioma: |
Inglês |
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Conteúdo: |
Abstract The aim of this study was to evaluate the ruminal parameters of fermentation and degradation, kinetic flow of rumen digesta, and milk fatty acid composition of cows fed 52% chopped elephantgrass-based diets containing 0.0% (control), 1.5%, 3.0% and 4.5% soybean oil (SO) on a dry matter (DM) basis. Four rumen-cannulated Holstein x Gyr dairy cows with an average milk production of 15.6 ± 3.0 kg day-1 and 90 ± 25 days in milk were allocated in a 4 x 4 Latin square design. The results were analyzed by mixed models. Significant differences were declared at P≤0.05, and P-values from 0.05 < P ≤ 0.10 were considered as a trend. The inclusion of SO in the diet had no effect on the ruminal pH or total volatile fatty acid concentration, but there was a quadratic effect on the ruminal ammonia nitrogen content and a trend for a linear reduction (P=0.07) in the molar proportion of rumen acetate. Linear reductions were also observed in the DM and neutral detergent fiber (NDF) effective degradabilities of elephantgrass forage, but the fluid and particulate passage rates in the rumen and the DM and NDF intakes were unchanged by SO inclusion in the diet. Milk production, protein and lactose contents and yields were unaltered by dietary SO levels. There were linear reductions in the milk fat and total solids contents, but there was no effect of dietary treatments on their yields. The inclusion of soybean oil in the diet of Holstein x Gyr cows fed chopped elephantgrass improved the nutritional quality of milk fat as a result of increased contents of oleic, rumenic and vaccenic acids, which are beneficial to human health, and a concomitant reduction in hypercholesterolemic saturated fatty acids such as lauric, myristic and palmitic acids. MenosAbstract The aim of this study was to evaluate the ruminal parameters of fermentation and degradation, kinetic flow of rumen digesta, and milk fatty acid composition of cows fed 52% chopped elephantgrass-based diets containing 0.0% (control), 1.5%, 3.0% and 4.5% soybean oil (SO) on a dry matter (DM) basis. Four rumen-cannulated Holstein x Gyr dairy cows with an average milk production of 15.6 ± 3.0 kg day-1 and 90 ± 25 days in milk were allocated in a 4 x 4 Latin square design. The results were analyzed by mixed models. Significant differences were declared at P≤0.05, and P-values from 0.05 < P ≤ 0.10 were considered as a trend. The inclusion of SO in the diet had no effect on the ruminal pH or total volatile fatty acid concentration, but there was a quadratic effect on the ruminal ammonia nitrogen content and a trend for a linear reduction (P=0.07) in the molar proportion of rumen acetate. Linear reductions were also observed in the DM and neutral detergent fiber (NDF) effective degradabilities of elephantgrass forage, but the fluid and particulate passage rates in the rumen and the DM and NDF intakes were unchanged by SO inclusion in the diet. Milk production, protein and lactose contents and yields were unaltered by dietary SO levels. There were linear reductions in the milk fat and total solids contents, but there was no effect of dietary treatments on their yields. The inclusion of soybean oil in the diet of Holstein x Gyr cows fed chopped elephantgrass impr... Mostrar Tudo |
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Palavras-Chave: |
Rate of passage; Ruminal metabolite. |
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Thesagro: |
Pennisetum Purpureum. |
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Thesaurus Nal: |
Conjugated linoleic acid. |
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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/185222/1/Cnpgl-2018-Semina-CiAgr-Fernando-Ruminal.pdf
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Marc: |
LEADER 02523naa a2200217 a 4500
001 2098300
005 2023-01-24
008 2018 bl uuuu u00u1 u #d
100 1 $aRIBEIRO, C. G. S.
245 $aRuminal fermentation and degradation, kinetic flow of the digesta and milk fatty acid composition of cows fed chopped elephantgrass supplemented with soybean oil.$h[electronic resource]
260 $c2018
520 $aAbstract The aim of this study was to evaluate the ruminal parameters of fermentation and degradation, kinetic flow of rumen digesta, and milk fatty acid composition of cows fed 52% chopped elephantgrass-based diets containing 0.0% (control), 1.5%, 3.0% and 4.5% soybean oil (SO) on a dry matter (DM) basis. Four rumen-cannulated Holstein x Gyr dairy cows with an average milk production of 15.6 ± 3.0 kg day-1 and 90 ± 25 days in milk were allocated in a 4 x 4 Latin square design. The results were analyzed by mixed models. Significant differences were declared at P≤0.05, and P-values from 0.05 < P ≤ 0.10 were considered as a trend. The inclusion of SO in the diet had no effect on the ruminal pH or total volatile fatty acid concentration, but there was a quadratic effect on the ruminal ammonia nitrogen content and a trend for a linear reduction (P=0.07) in the molar proportion of rumen acetate. Linear reductions were also observed in the DM and neutral detergent fiber (NDF) effective degradabilities of elephantgrass forage, but the fluid and particulate passage rates in the rumen and the DM and NDF intakes were unchanged by SO inclusion in the diet. Milk production, protein and lactose contents and yields were unaltered by dietary SO levels. There were linear reductions in the milk fat and total solids contents, but there was no effect of dietary treatments on their yields. The inclusion of soybean oil in the diet of Holstein x Gyr cows fed chopped elephantgrass improved the nutritional quality of milk fat as a result of increased contents of oleic, rumenic and vaccenic acids, which are beneficial to human health, and a concomitant reduction in hypercholesterolemic saturated fatty acids such as lauric, myristic and palmitic acids.
650 $aConjugated linoleic acid
650 $aPennisetum Purpureum
653 $aRate of passage
653 $aRuminal metabolite
700 1 $aLOPES, F. C. F.
700 1 $aRODRIGUEZ, N. M.
700 1 $aGAMA, M. A. S. da
700 1 $aMORENZ, M. J. F.
773 $tSemina: Ciências Agrárias$gv. 39, n. 4, p. 1775-1794, 2018.
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Registro original: |
Embrapa Gado de Leite (CNPGL) |
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Biblioteca |
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| Registros recuperados : 395 | |
| 67. |  | PORTO, P. P.; DERESZ, F.; SANTOS, G. T. dos; LOPES, F. C. F.; CECATO, U.; CÓSER, A. C. Produção e composição química do leite, consumo e digestibilidade de forragens tropicais manejadas em sistema de lotação intermitente. Revista Brasileira de Zootecnia, Viçosa, MG, v. 38, n. 8, p. 1422-1431, 2009.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: B - 1 |
| Biblioteca(s): Embrapa Gado de Leite. |
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| 68. | | SOUZA, R. C. D.; REIS, R. B.; LOPES, F. C. F.; LEÃO, J. M.; MOURTHÉ, M. H. F. Productive parameters, metabolic and economic viability of dairy cows supplemented with different levels of urea in diets based on sugarcane. Journal of Animal Science, v. 92, p. 803, 2014. Supplement. Edição dos abstracts do Joint Annual Meeting, 2014, Kansas City.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Gado de Leite. |
|  |
| 69. | | RIBEIRO, C. G. S.; LOPES, F. C. F.; RODRIGUEZ, N. M.; GAMA, M. A. S. da; MORENZ, M. J. F. Ruminal fermentation and degradation, kinetic flow of the digesta and milk fatty acid composition of cows fed chopped elephantgrass supplemented with soybean oil. Semina: Ciências Agrárias, v. 39, n. 4, p. 1775-1794, 2018.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: B - 1 |
| Biblioteca(s): Embrapa Gado de Leite. |
| |
| 71. | | BIZZO, H. R.; SOUZA, A. M.; SILVA, P. S.; ANTONIASSI, R.; GAMA, M. A. S.; LOPES, F. C. F. Separation of critical pairs of C18:1 isomers and conjugated linoleic acids in milk fat. In: INTERNATIONAL SYMPOSIUM ON CAPILLARY CHROMATOGRAPHY, 36.; GCxGC SYMPOSIUM, 9., 2012, Riva del Garda. Abstract book. Messina: Chromaleont, 2012. p. 517.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Agroindústria de Alimentos. |
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| 77. | | ROSSI, M.; MARTINELE, I.; SOUZA, S. M. de; LOPES, F. C. F.; LEÃO, M. I.; D'AGOSTO, M. Suplementação com óleo de girassol em dietas à base de cana-de-açúcar e seus efeitos sobre as populações de protozoários ciliados no rúmen de vacas lactantes. In: REUNIÃO ANUAL DA SOCIEDADE BRASILEIRA DE ZOOTECNIA, 48., 2011, Belém, PA. O desenvolvimento da produção animal e a responsabilidade frente a novos desafios: anais. Belém, PA: SBZ, 2011. 3 p.| Tipo: Artigo em Anais de Congresso |
| Biblioteca(s): Embrapa Gado de Leite. |
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| 79. | | LOPES, F. C. F.; SOUZA, R. C.; REIS, R. B.; DEMEU, A. A.; SOUSA, B. M.; DUQUE, A. C. A. Taxa de passagem e degradabilidade ruminal de vacas Holândes x Zebu em lactação, recebendo cana de açúcar suplementada com níveis crescentes de uréia e sulfato de amônio. In: REUNIÃO ANUAL DA SOCIEDADE BRASILEIRA DE ZOOTECNIA. 45., 2008, Lavras, MG. Anais... Viçosa, MG: Sociedade Brasileira de Zootecnia, 2008.| Tipo: Artigo em Anais de Congresso / Nota Técnica |
| Biblioteca(s): Embrapa Gado de Leite. |
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| 80. | | RIBEIRO, C. G. S.; LOPES, F. C. F.; GAMA, M. A. S. da; MORENZ, M. J. F.; RODRIGUEZ, N. M. Taxa de passagem ruminal e digestibilidade aparente de nutrientes em vacas alimentadas com dois tipos de óleo de girassol e dois modos de fornecimento do concentrado em dietas à base de capim-elefante. In: CONGRESSO INTERNACIONAL DO LEITE, 12.; WORKSHOP DE POLÍTICAS PÚBLICAS, 12.; SIMPÓSIO DE SUSTENTABILIDADE DA ATIVIDADE LEITEIRA, 13., 2013, Porto Velho. Anais... Brasília, DF: Embrapa, 2013. 3 p. 1 CD-ROM.| Tipo: Artigo em Anais de Congresso |
| Biblioteca(s): Embrapa Gado de Leite. |
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| Registros recuperados : 395 | |
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| Nenhum registro encontrado para a expressão de busca informada. |
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