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Moreira Filho,Miguel Arcanjo; Alves,Arnaud Azevêdo; Vale,George Emanuel Silva do; Moreira,Antonia Leidiana; Rogério,Marcos Cláudio Pinheiro. |
The objective of this research was to evaluate the chemical composition and in situ degradability of hay stubble from a maize crop fertilized with 40; 120 or 200 kg N ha-1, ammoniated with urea. To evaluate in situ degradability, 4 g samples were incubated in nylon bags in the rumen of cattle for 6; 24 and 72 hours. The levels of acid detergent fiber (35.4% DM) and acid detergent insoluble nitrogen (18.5% of total N) decreased, resulting in 32.7% of DM and 9.6% of the total N, and crude protein (CP) increased from 5.2 to 9.7% of DM as a result of the ammoniation with urea. The degradation of dry matter (48.7%), CP (56.5%) and neutral detergent fiber (33.6%) increased with ammoniation, averaging 54.5 and 75.4, and 38.4% respectively, but was not influenced... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Degradation; Hay ammoniated; Maize-crop stubble as forage. |
Ano: 2013 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1806-66902013000400028 |
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Moreira,Antonia Leidiana; Alves,Arnaud Azevêdo; Moreira Filho,Miguel Arcanjo; Silva,Daniel Cézar da; Garcez,Bruno Spíndola; Vasconcelos,Vânia Rodrigues. |
ABSTRACT Leaves of babassu may be used in diets for goats under maintenance, however, it is a low-quality roughage due to its high fiber content. The chemical treatment by ammonia causes reduction in the proportion of the cell wall, in addition to providing non-protein nitrogen for the microbial protein synthesis in the rumen. Babassu palm hay ammoniated with 4% urea (BHAU4%) was evaluated in this study as a substitute for guinea grass hay in the maintenance diets of goats in terms of intake, digestibility in vivo, and the partitioning of energy and nitrogen compounds. Twenty Anglo-Nubian male goats were used in a randomised block design with four treatments (diets containing 0, 33, 66, or 100% BHAU4%) and five replicates (animals/block). The chemical... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Digestibility in vivo; Guinea grass; Native forage; Nitrogen balance; Orbignya phalerata Mart. |
Ano: 2016 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542016000600688 |
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