Digestion of tropical tree forages : influence of the level of Faidherbia albida pods in the ration on rumen in sacco peanut hay dry matter degradation in Gobra Zebu (Bos indicus)

摘要

In vivo digestion of browse plants based rations is influenced by their content in secondary compounds. Thus, variations in the digestibility of the rations according to browse level are reported by Miranda (1989, Monographic n°7 ILCA) and Fall (1993, Thes Doct Univ ENSAM, France). The non-additivity of the ration components owing to the occurrence of digestive interactions, suggested application of regression method rather than difference method to evaluate the in vivo digestibility of tree foragebased rations.