Fig. 5From: Ascorbic acid synthesis and transportation capacity in old laying hens and the effects of dietary supplementation with ascorbic acidEffects of dietary AA on the portion of T lymphocytes a and the IgG levels at 3, 6, 10, and 14 d post-immunity with BSA b in serum in Exp. 2. Within each panel, means without a common letter differ at P < 0.05Back to article page