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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. II. Farelo de algodao

By: Contributor(s): Material type: ArticleArticleLanguage: Portuguese Description: p. 314-316Subject(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 cottonseed meal and the potencial and effective degradability and 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. Cottonseed meal samples of 5,5 9 were grounded in 2 mm and put in nylon bags of 7 x 14 cm and incubated in the rumen for 2, 4, 6,12, 24 e 48h. The level of 40 percent of concentrate caused reductions in the potentially degradable MS (P less than 0,05); and higher values for the degradation rates of DM, CP, NDF. The use of lag time significantly increased effect degradation of DM (EDDM) for cottonseed meal in two diets (14 percent for D1 and 15 percent for D2, P less than 0,05). The degradation of CP and NDIN fractions were relatively high when compared to 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 cottonseed meal and the potencial and effective degradability and 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. Cottonseed meal samples of 5,5 9 were grounded in 2 mm and put in nylon bags of 7 x 14 cm and incubated in the rumen for 2, 4, 6,12, 24 e 48h. The level of 40 percent of concentrate caused reductions in the potentially degradable MS (P less than 0,05); and higher values for the degradation rates of DM, CP, NDF. The use of lag time significantly increased effect degradation of DM (EDDM) for cottonseed meal in two diets (14 percent for D1 and 15 percent for D2, P less than 0,05). The degradation of CP and NDIN fractions were relatively high when compared to CNCPS. This could be attributed to the animals utilized in this study zebu eng

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