Digestion of high fiber diet in sheep and goat of Jenepponto

Four does (goat,g) and four ewes (sheep,s) of jeneponto were fed chaffed rice straw hay (3.7% crude protein,63.5% cell wall constituents,44.5% acid detergent fiber and 6.2% acid detergent lignin,all based on dry matter). the intakes and digestibility of the diet by g and s were compared. both species consumed the same level of the diet. g digested dry matter,organic matter,crude protein,crude fiber,and lignin of the diet to a significant higher extent than did by s. the superiority of g over s in digesting the diet was attributable with longer retention time of ruminal fluid and particulate matters in the rumen and the entire gut,which then resulted in higher proportion of small size particles (<1 mm sieve),higher proportions of propionic,butyric,valeric and isovaleric acid concentrations produced in the rumen. additionally for further studies,there were some possibilities of g having a better chewing activity (duration and intensity),and ability to maintain higher rumen ammonia levels by a greater urea recycle to the rumen,particularly through salivation. © 2010 diponegoro university. all rights reserved.