Avena sativa is an excellent forage crop, with the top five indicators of protein, fat, vitamins, and mineral element cellulose in its grains, ranking first among wheat, corn, rice, barley, sorghum, and millet. The nutritional value of oat straw is also superior to other crop straw, with a total digestible matter of 50% and a crude protein content of 4.4%, which is higher than barley straw (49%, 4.3%), rice straw (41%, 4.2%), and wheat straw (44%, 3.6%), respectively....