Beef cattle equipped with rumen fistula and small intestine fistula were selected as test animals. The nylon bag method was used to determine the rumen degradation characteristics and small intestine digestibility of common feed dry matter (DM) and crude protein (CP) of beef cattle. The results show that the effective degradation rate of DM rumen from high to low is: corn flour, wheat bran, alfalfa hay, soybean meal, rapeseed meal, corn silage, vinegar grains, liquor grain; CP effective rumen degradation rate from high to low is: Hay, wheat bran, soybean meal, vinegar grains, corn flour, corn silage, rapeseed meal, white wine grains; DM small intestine digestibility from high to low: soybean meal, rapeseed meal, corn flour, white wine grains, vinegar grains, wheat bran , Alfalfa hay, corn silage; CP small intestine digestibility from high to low: soybean meal, rapeseed meal, corn meal, alfalfa hay, wheat bran, liquor grain, corn silage, vinegar grain. Tests show that different feeds have different rumen-degrading characteristics, different ability to provide rumen-digestable protein for the small intestine, and the DM small intestine digestibility of the feed is less than the CP small intestine digestibility. |