Prediction of digestibility of organic matter and voluntary intake of dry matter of grasses on the basis of their chemical composition

Scehovic, J.

Fourrages 79: 57-78, 125


ISSN/ISBN: 0429-2766
Accession: 000722673

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In an attempt to find a rapid, reproducible and accurate method of predicting the feeding value of a forage, 100 different spp. were analysed and the results compared with in vivo determinations of OM digestibility and DM intake by sheep. The importance of the total fibre, total soluble matter, lignin, lignocellulose, cellulose and content of phenolic substances was considered. Inclusion of phenolic compounds in regression equations improved the accuracy of prediction and it was concluded that the phenol index (the ratio of phenolic compounds soluble in methanol:phenolic compounds insoluble in methanol) could be used as a rapid preliminary qualitative test.