Abstract
Three series of experiments were performed to investigate the influence of dietary protein on serum total protein and albumin. The following results were obtained.
(1) Serum constituents were determined after feeding a diet containing various protein source. The level of total protein in the serum was decreased in the order of casein, zein, casein hydrolysate, gelatin diet. The same tendency was shown in the albumin.
(2) When rats were fed on diets containing various casein levels, the level of serum constituents showed progressively higher value by a higher protein diet.
(3) When the effect of breeding day was evaluated in rats fed on a 2% casein diet, the level of serum protein was significantly decreased after 7 days. After the feeding, serum albumin was also significantly decreased. However, the elevation on both serum constituents was seen at the end of 21 days.
