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Prediction of the digestibility of the dry matter of tropical forages from their solubility in fungal cellulase solutions
Author(s) -
Adegbola Anthony A.,
Paladines Osvaldo
Publication year - 1977
Publication title -
journal of the science of food and agriculture
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.782
H-Index - 142
eISSN - 1097-0010
pISSN - 0022-5142
DOI - 10.1002/jsfa.2740280902
Subject(s) - cellulase , rumen , forage , dry matter , digestion (alchemy) , organic matter , pepsin , chemistry , food science , biology , zoology , agronomy , botany , enzyme , biochemistry , fermentation , chromatography , ecology
Correlations between in vitro dry matter (DM) digestibility and amount of DM dissolved in acid pepsin and cellulase enzymes for 24 tropical forage samples gave a value of 0.91 but a high sample standard deviation of 6.50 and a coefficient of variation of 25 %. This suggests that the cellulase technique requires further study if it were to be used as a predictor of rumen liquor in vitro digestibility values for tropical grasses and legumes. An improved correlation of r = 0.98 with sample standard deviation of 2.29 was obtained when percent DM dissolved in acid‐pepsin and cellulase enzymes was compared with the in vivo dry matter digestibility values of 11 tropical forage grasses and legumes. This result suggests that the pepsin‐cellulase technique may be used to predict in vivo DM digestibility values in tropical grasses and legumes.