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Avaliaçao das sub-fraçoes dos carboidratos e das proteínas, usando a metodologia do CNCPs e "in situ" com bovinos da raça nelore. I. Silagem de milho

By: Contributor(s): Material type: ArticleArticleLanguage: Portuguese Description: p. 308-310Subject(s): LOC classification:
  • SB 193 .3 .B7 A5
 In: In:Barcellos, Alexandre de Oliveira; Mariante, Arthur da S.; Rocha, Carlos Magno Campos da; Leite, Gilberto Gonçalves (eds.). Reuniao Anual da Sociedade Brasileira de Zootecnia (32, 1995, Brasília, Brasil). AnaisSummary: To verify the use the "Cornell Net Carbohydrate and Protein System" (CNCPS) under Brazilian conditions the bromatological composition of corn silage and the potencial and effective degradation rates, of the subfractional carbohydrate and protein, were determined, in diets with roughage:concentrate ratio of 80:20 (D1) and 60:40 (D2). Four nelore, castrated males with an average weight of 520 kg were used. Corn silage samples of 5,5 9 were grounded in 5 mm and put in nylon bags of 7 x 14 cm, and incubated in the rumen for 3, 6, 12, 24, 48 e 72h. The diet 2 caused reductions (P less than 0,05) in the DM potentially degradable; lower values for the degradation rates of DM, NDF, NDIN; and higher values for degradation rates of the CP and starch. The use of lag time significantly increased (P less than 0,05) effective degradation of DM (EDDM) for the two diets. The degradation of CP and NDIN fractions were relatively high when compared to literature and CNCPS. This could be attributed to the animals utilized in this study zebu
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To verify the use the "Cornell Net Carbohydrate and Protein System" (CNCPS) under Brazilian conditions the bromatological composition of corn silage and the potencial and effective degradation rates, of the subfractional carbohydrate and protein, were determined, in diets with roughage:concentrate ratio of 80:20 (D1) and 60:40 (D2). Four nelore, castrated males with an average weight of 520 kg were used. Corn silage samples of 5,5 9 were grounded in 5 mm and put in nylon bags of 7 x 14 cm, and incubated in the rumen for 3, 6, 12, 24, 48 e 72h. The diet 2 caused reductions (P less than 0,05) in the DM potentially degradable; lower values for the degradation rates of DM, NDF, NDIN; and higher values for degradation rates of the CP and starch. The use of lag time significantly increased (P less than 0,05) effective degradation of DM (EDDM) for the two diets. The degradation of CP and NDIN fractions were relatively high when compared to literature and CNCPS. This could be attributed to the animals utilized in this study zebu eng

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