The total protein(TP), albumin(Alb),retinol binding protein(RBP),pre alburmin(PA) and transferrin(TRF) contents in serum were examined at the end of the experiment,and body weight change in experiment period was observed.

• 实验结束 ,取血测定血清总蛋白 (TP)、白蛋白 (Alb)、视黄醇结合蛋白 (RBP)、转铁蛋白 (TRF)和前白蛋白 (PA) ; 实验期动态测量体重。