Results The leaching solution of CCK consisted mainly of middle-molecular-weight peptides with a small quantity of macromolecular proteins.

• 采用皮肤致敏实验（大鼠）、皮内刺激实验（家兔）、小鼠全身急性毒性实验以及体外细胞毒性实验观察鸡羽根角蛋白管浸提液的体内和体外毒性作用。