The weight and relative body weight indices, the length and relative small intestine length indices of digestive organs were measured.

• 测定肝脏、腺胃、肌胃、胆囊、胰腺、十二指肠、空肠、回肠的质量，计算相对体质量，以及小肠总长度、十二指肠、空肠、回肠长度和相对小肠总长长度指数。