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| Freitas,Rafaela Scalise Xavier de; Nepomuceno,Delci de Deus; Modesto,Elisa Cristina; Pereira,Tatiana Pires; Almeida,João Carlos de Carvalho; Morais,Leonardo Fiusa de; Pereira,Luiz Gustavo Ribeiro; Machado,Fernanda Samarini; Campos,Mariana Magalhaes; Tomich,Thierry Ribeiro. |
| Abstract: The objective of this work was to evaluate the effect of the addition of the methanolic extract of Urochloa humidicola at four different concentrations (0, 75, 150, and 250 g L-1) on the in vitro rumen fermentation of Urochloa brizantha. The following variables were evaluated by the in vitro gas production technique: kinetic parameters; rumen degradation of dry matter; and production and concentration of the methane and carbon dioxide gases and of the acetate, propionate, and butyrate short-chain fatty acids. The addition of the methanolic extract reduces the production of gases generated from the degradation of non-fibrous carbohydrates (fraction A) in 9.55, 6.67, and 13.33%, respectively, at the concentrations of 75, 150, and 250 g L-1,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Urochloa humidicola; Methane mitigation; Rumen metabolism; Secondary plant metabolites. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2018000400504 |
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| Polizel,Daniel Montanher; Marques,Samuel Sutil; Westphalen,Mariana Fontana; Gouvea,Vinícius Nunes; Ferraz Júnior,Marcos Vinícius de Castro; Miszura,Alexandre Arantes; Barroso,José Paulo Roman; Limede,Arnaldo Cintra; Ferreira,Evandro Maia; Pires,Alexandre Vaz. |
| ABSTRACT: Narasin is an antibacterial agent that may change rumen fermentation. Two experiments were proposed to evaluate the efficiency of narasin inclusion for lambs fed a diet containing high amounts of ground flint corn. Thirty rumen-cannulated wethers were used to evaluate nutrient digestibility, nitrogen balance, and rumen metabolism (Exp. 1); and forty-five lambs were used to evaluate performance (Exp. 2) of animals fed with narasin for high flint corn diets. The experimental diets were: control or basal diet without additives (C); 25 mg of monensin kg−1 of dry matter (DM) (M); and inclusion of 5 (N5), 10 (N10), and 15 (N15) mg of narasin kg−1 of DM. The statistical analyses were performed using the MIXED procedure of SAS. Monensin increased DM... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Average daily gain; Feed efficiency; Propionate; Rumen metabolism; Sheep. |
| Ano: 2021 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162021000600401 |
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