The weight and the cell size of thymus,thymus index,thymus peptide content and thymin activity were significantly lower in ZH group than those in PF group.
The weight and the cell size of thymus,thymus index,thymus peptide content and thymin activity were significantly lower in ZH group than those in PF group.
ZH组的胸腺重量、胸腺指数、胸腺细胞大小、胸腺肽含量和胸腺素活性，均非常显著地低于PF组；