Therefore,there were significant differences of amino acids digestibility of plant feedstuffs between cockerels and drakes,and the nutritional parameter of cockerel was not appropriate for drake.

• 以上结果表明,鸡和鸭对饲料氨基酸消化率存在显著差异,在所测定的7种植物饲料中大多数AAAD和TAAD测定值都是鸭比鸡高,目前以鸡测定各种饲料氨基酸消化率不适宜鸭的生产。