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| Henriques,L.T.; Detmann,E.; Queiroz,A.C.; Valadares Filho,S.C.; Leão,M.I.; Paulino,M.F.. |
| The total and undegradable fractions of nitrogenous compounds associated to cell wall organic matrix in some tropical forages were evaluated. Samples of corn silage, elephantgrass silage and sugarcane were used. Neutral detergent insoluble nitrogenous compounds were divided in three different fractions associated with: hemicellulose (HN), cellulose (CN), and lignin (LN). The size of the different fractions varied among feeds. A portion of acid detergent insoluble nitrogen, which is the sum of CN and LN, was potentially degradable in the rumen. A portion of HN was not degradable in the rumen. The heterogeneous dimensions of degradable portion of all nitrogenous compounds among feeds can compromise the estimates of cell wall undegradable nitrogen by simple... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Degradação ruminal; Lignina; Proteína insolúvel em detergente ácido; Proteína insolúvel em detergente neutro. |
| Ano: 2007 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352007000100043 |
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| Detmann,E.; Silva,J.F.C.; Clipes,R.C.; Henriques,L.T.; Valadares Filho,S.C.; Queiroz,A.C.; Paulino,M.F.. |
| A mathematical model was developed to predict the content of undegradable neutral detergent insoluble protein (UNDIP) from chemical characteristics of tropical forages. This study was based on a biological limitation of a previous model, which restricts the UNDIP estimates to values equals or higher than 1.34% of dry matter. The databank was formed by 540 samples of tropical forages used in cattle feeding (fresh forage and hay). The ratio of UNDIP on neutral detergent insoluble protein (NDIP) was chosen as response variable and the acid detergent insoluble protein (ADIP) as independent variable. The mathematical model was found to be exponential, assuming the formula: UNDIP = NDIP x e-(0,818+0.16764DIP) , in which all values are expressed on dry matter... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Proteína insolúvel em detergente ácido; Proteína digestível; Degradação ruminal; Degradação proteica. |
| Ano: 2010 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352010000300033 |
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