Abstract
Digestion trials with sheep and nylon bag were carried out using with timothy hay, reed canarygrass silage, alfalfa hay, mixed grass hay, corn silage, soybean meal, cottonseed meal and wheat bran. In vivo digestion of feeds has shown the amount of digestible organic cellular contents (OCC), cellulase digestible cell wall fraction (Oa) and cellulose contained in low digestible cell wall designated as Ob fraction were highly correlated to their contents in dry matter. In comparison with cell wall digestibility, 72 hr nylon bag digestion has shown higher values generally than those of in vivo trials. However, both values were similar in the case of alfalfa hay.
