The amount of protein and the kinds of amino acids in tung oil cake are measured by Kjeldahl-Gunning nitrogen determination method and standard amino acid analysis method respectively.

• 采用水、醇、酸溶液处理桐粕,分析氨基酸含量,将处理后的桐粕制成复合饲料,并进行成鸡的饲喂实验,观察各方法的脱毒效果。