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Registro Completo |
Biblioteca(s): |
Embrapa Gado de Leite. |
Data corrente: |
17/08/2021 |
Data da última atualização: |
17/08/2021 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Autoria: |
LOPES, F. C. F.; SOUZA, S. M. de; VALADARES FILHO, S. de C.; GAMA, M. A. S. da; RENNÓ, L. N. |
Afiliação: |
FERNANDO CESAR FERRAZ LOPES, CNPGL; SHIRLEY MOTTA DE SOUZA, Instituto Federal do Sul de Minas Gerais; SEBASTIÃO DE CAMPOS VALADARES FILHO, Universidade Federal de Viçosa; MARCO ANTONIO SUNDFELD DA GAMA, CNPGL; LUCIANA NAVAJAS RENNÓ, Universidade Federal de Viçosa. |
Título: |
Ruminal parameters and fatty acid composition of omasal digesta and milk in cows fed sugarcane-based diets supplemented with sunflower oil. |
Ano de publicação: |
2020 |
Fonte/Imprenta: |
Semina. Ciências Agrárias, v. 41, n. 5, p. 2317-2334, 2020. |
DOI: |
https://doi.org/10.5433/1679-0359.2020v41n5Supl1p2317 |
Idioma: |
Inglês |
Notas: |
Suplemento. |
Conteúdo: |
This study evaluates the intake and digestion of nutrients, parameters of rumen fermentation and degradation, omasal digesta and milk fatty acid composition, productive performance, and the concentration of serum metabolites in cows fed 600 g kg-1 sugarcane-based diets containing 0 (control), 15, 30, and 45 g kg-1 sunflower oil (SO) on a dry matter (DM) basis. Four rumen-cannulated Holstein x Gyr cows yielding 15±5 kg day-1 with 110±10 days in milk were allocated in a 4 x 4 Latin square design. Data were analyzed using mixed models, and significant differences were declared at P<0.05. There was no effect of SO on the intake and apparent digestibility of DM, crude protein, neutral detergent fiber (NDF) and nonfibrous carbohydrates, but there was a linear increase in the intake and digestibility of ether extract. Dietary SO levels did not alter the ruminal degradability parameters for DM and NDF, rumen pH and contents of ammonia N, acetate, propionate and volatile fatty acids. Milk fat content and yield were linearly decreased, whereas a linear increase in milk protein content was observed in response to increasing levels of SO, but with no effect on milk yield. Linear reductions in palmitic and α-linolenic acid contents, a linear increase in trans-10 C18:1 and elaidic acids, and a quadratic effect on vaccenic and rumenic acids were observed in omasal digesta of cows fed increasing levels of SO. Overall, up to 45 g kg-1 SO can be included on DM of chopped sugarcane-based diets without reducing consumption, apparent digestibility and rumen degradability of DM and fiber. Supplementing chopped sugarcanebased diets with 30 to 45 g kg-1 SO (DM basis) promotes milk fat depression due to the inhibition of mammary lipogenesis by specific rumen-derived fatty acid intermediates of the biohydrogenation of unsaturated C18 fatty acids. The inclusion of 15 to 45 g kg-1 SO in chopped sugarcane-based diets improves the nutritional quality of milk fat, with increases in the levels of oleic, vaccenic and rumenic acids, beneficial to human health, and a reduction in the levels of the hypercholesterolemic lauric, myristic and palmitic acids. MenosThis study evaluates the intake and digestion of nutrients, parameters of rumen fermentation and degradation, omasal digesta and milk fatty acid composition, productive performance, and the concentration of serum metabolites in cows fed 600 g kg-1 sugarcane-based diets containing 0 (control), 15, 30, and 45 g kg-1 sunflower oil (SO) on a dry matter (DM) basis. Four rumen-cannulated Holstein x Gyr cows yielding 15±5 kg day-1 with 110±10 days in milk were allocated in a 4 x 4 Latin square design. Data were analyzed using mixed models, and significant differences were declared at P<0.05. There was no effect of SO on the intake and apparent digestibility of DM, crude protein, neutral detergent fiber (NDF) and nonfibrous carbohydrates, but there was a linear increase in the intake and digestibility of ether extract. Dietary SO levels did not alter the ruminal degradability parameters for DM and NDF, rumen pH and contents of ammonia N, acetate, propionate and volatile fatty acids. Milk fat content and yield were linearly decreased, whereas a linear increase in milk protein content was observed in response to increasing levels of SO, but with no effect on milk yield. Linear reductions in palmitic and α-linolenic acid contents, a linear increase in trans-10 C18:1 and elaidic acids, and a quadratic effect on vaccenic and rumenic acids were observed in omasal digesta of cows fed increasing levels of SO. Overall, up to 45 g kg-1 SO can be included on DM of chopped sugarcane-based ... Mostrar Tudo |
Palavras-Chave: |
Ácido rumênico; Ácido vacênico; Rumenic acid. |
Thesagro: |
Ácido Linoléico; Saccharum Officinarum. |
Thesaurus Nal: |
Conjugated linoleic acid; Vaccenic acid. |
Categoria do assunto: |
F Plantas e Produtos de Origem Vegetal |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/225239/1/Ruminal-parameters.pdf
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Marc: |
LEADER 03094naa a2200277 a 4500 001 2133630 005 2021-08-17 008 2020 bl uuuu u00u1 u #d 024 7 $ahttps://doi.org/10.5433/1679-0359.2020v41n5Supl1p2317$2DOI 100 1 $aLOPES, F. C. F. 245 $aRuminal parameters and fatty acid composition of omasal digesta and milk in cows fed sugarcane-based diets supplemented with sunflower oil.$h[electronic resource] 260 $c2020 500 $aSuplemento. 520 $aThis study evaluates the intake and digestion of nutrients, parameters of rumen fermentation and degradation, omasal digesta and milk fatty acid composition, productive performance, and the concentration of serum metabolites in cows fed 600 g kg-1 sugarcane-based diets containing 0 (control), 15, 30, and 45 g kg-1 sunflower oil (SO) on a dry matter (DM) basis. Four rumen-cannulated Holstein x Gyr cows yielding 15±5 kg day-1 with 110±10 days in milk were allocated in a 4 x 4 Latin square design. Data were analyzed using mixed models, and significant differences were declared at P<0.05. There was no effect of SO on the intake and apparent digestibility of DM, crude protein, neutral detergent fiber (NDF) and nonfibrous carbohydrates, but there was a linear increase in the intake and digestibility of ether extract. Dietary SO levels did not alter the ruminal degradability parameters for DM and NDF, rumen pH and contents of ammonia N, acetate, propionate and volatile fatty acids. Milk fat content and yield were linearly decreased, whereas a linear increase in milk protein content was observed in response to increasing levels of SO, but with no effect on milk yield. Linear reductions in palmitic and α-linolenic acid contents, a linear increase in trans-10 C18:1 and elaidic acids, and a quadratic effect on vaccenic and rumenic acids were observed in omasal digesta of cows fed increasing levels of SO. Overall, up to 45 g kg-1 SO can be included on DM of chopped sugarcane-based diets without reducing consumption, apparent digestibility and rumen degradability of DM and fiber. Supplementing chopped sugarcanebased diets with 30 to 45 g kg-1 SO (DM basis) promotes milk fat depression due to the inhibition of mammary lipogenesis by specific rumen-derived fatty acid intermediates of the biohydrogenation of unsaturated C18 fatty acids. The inclusion of 15 to 45 g kg-1 SO in chopped sugarcane-based diets improves the nutritional quality of milk fat, with increases in the levels of oleic, vaccenic and rumenic acids, beneficial to human health, and a reduction in the levels of the hypercholesterolemic lauric, myristic and palmitic acids. 650 $aConjugated linoleic acid 650 $aVaccenic acid 650 $aÁcido Linoléico 650 $aSaccharum Officinarum 653 $aÁcido rumênico 653 $aÁcido vacênico 653 $aRumenic acid 700 1 $aSOUZA, S. M. de 700 1 $aVALADARES FILHO, S. de C. 700 1 $aGAMA, M. A. S. da 700 1 $aRENNÓ, L. N. 773 $tSemina. Ciências Agrárias$gv. 41, n. 5, p. 2317-2334, 2020.
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Registro original: |
Embrapa Gado de Leite (CNPGL) |
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Registro Completo
Biblioteca(s): |
Embrapa Rondônia; Embrapa Solos. |
Data corrente: |
21/02/2003 |
Data da última atualização: |
14/07/2020 |
Tipo da produção científica: |
Documentos |
Autoria: |
PEQUENO, P. L. de L.; MOTA, P. E. F. da; LEONIDAS, F. das C.; RODRIGUES, A. N. A. |
Afiliação: |
Petrus Luiz de Luna Pequeno, Bolsista CNPq/Embrapa Rondônia; Paulo Emílio Ferreira da Motta, Embrapa Solos; FRANCISCO DAS CHAGAS LEONIDAS, CPAF-RO; Antônio Néri Azevedo Rodrigues, CPAF-RO. |
Título: |
Caracterização das classes de solo ocorrentes e aptidão agrícola de uma área destinada a um sistema de agrovila em Ouro Preto d'Oeste-RO. |
Ano de publicação: |
2001 |
Fonte/Imprenta: |
Porto Velho: Embrapa Rondônia, 2001. |
Páginas: |
20 p. |
Série: |
(Embrapa Rondônia. Documentos, 52). |
ISSN: |
0103-9865 |
Idioma: |
Português |
Conteúdo: |
A presente pesquisa teve por objetivo caracterizar as classes de solos ocorrentes e seus respectivos niveis de fertilidade, bem como, definicao de um sistema de apatidao agricola em uma area destinada a um projeto de agrovila no municipio de Ouro Preto d' Oeste no estado de Rondonia. Foram abertas sete trincheiras em toda a area, nas dimensoes de 1,00 m x 1,80 m utilizando-se retroescavadeira. Faz-se descricao pedologicas e coletas de amostras de solo para caracterizacao fisica e quimica, nas profundidades de 0-20 cm e 20 cm-40.
Cosntatou-se a ocorrencia das classes de solo: LAd, PVAd, PVAe, Ce, PVEe, PVAe, PVAd com aptidoes agricolas 2bc, 3(a) bc, 2aBC, 2Abc, 3AB(c), 2abc 3(a)bc, respectivamente. |
Palavras-Chave: |
Amazônia Ocidental; Avaliação da aptidão agrícola; Brasil; Brasil - Rondonia - Ouro Preto d' Oeste; Classes de solo; Classificação; Ouro Preto d"Oeste; Ouro Preto d'Oeste; Ouro Preto d'Oeste (RO); Ouro Preto d´Oeste; Rondonia; Sistema de Agrovila; Western Amazon. |
Thesagro: |
Aptidão Agrícola; Classificação do Solo; Fertilidade; Fertilidade do Solo; Solo. |
Thesaurus NAL: |
Agricultural soils; Amazonia; soil; Soil classification; Soil fertility. |
Categoria do assunto: |
-- P Recursos Naturais, Ciências Ambientais e da Terra |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/70941/1/0000003287-Doc52-solos.pdf
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Marc: |
LEADER 02085nam a2200457 a 4500 001 1703792 005 2020-07-14 008 2001 bl uuuu u0uu1 u #d 022 $a0103-9865 100 1 $aPEQUENO, P. L. de L. 245 $aCaracterização das classes de solo ocorrentes e aptidão agrícola de uma área destinada a um sistema de agrovila em Ouro Preto d'Oeste-RO. 260 $aPorto Velho: Embrapa Rondônia$c2001 300 $a20 p. 490 $a(Embrapa Rondônia. Documentos, 52). 520 $aA presente pesquisa teve por objetivo caracterizar as classes de solos ocorrentes e seus respectivos niveis de fertilidade, bem como, definicao de um sistema de apatidao agricola em uma area destinada a um projeto de agrovila no municipio de Ouro Preto d' Oeste no estado de Rondonia. Foram abertas sete trincheiras em toda a area, nas dimensoes de 1,00 m x 1,80 m utilizando-se retroescavadeira. Faz-se descricao pedologicas e coletas de amostras de solo para caracterizacao fisica e quimica, nas profundidades de 0-20 cm e 20 cm-40. Cosntatou-se a ocorrencia das classes de solo: LAd, PVAd, PVAe, Ce, PVEe, PVAe, PVAd com aptidoes agricolas 2bc, 3(a) bc, 2aBC, 2Abc, 3AB(c), 2abc 3(a)bc, respectivamente. 650 $aAgricultural soils 650 $aAmazonia 650 $asoil 650 $aSoil classification 650 $aSoil fertility 650 $aAptidão Agrícola 650 $aClassificação do Solo 650 $aFertilidade 650 $aFertilidade do Solo 650 $aSolo 653 $aAmazônia Ocidental 653 $aAvaliação da aptidão agrícola 653 $aBrasil 653 $aBrasil - Rondonia - Ouro Preto d' Oeste 653 $aClasses de solo 653 $aClassificação 653 $aOuro Preto d"Oeste 653 $aOuro Preto d'Oeste 653 $aOuro Preto d'Oeste (RO) 653 $aOuro Preto d´Oeste 653 $aRondonia 653 $aSistema de Agrovila 653 $aWestern Amazon 700 1 $aMOTA, P. E. F. da 700 1 $aLEONIDAS, F. das C. 700 1 $aRODRIGUES, A. N. A.
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Embrapa Rondônia (CPAF-RO) |
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