Figure 5

Effects of different doses of 17 β-estradiol on serum biochemical indexes and the expression of three gene families in chicken livers. (a) Effects of 17 β-estradiol treatment on serum biochemical indexes in chickens. (b–i) Effects of 17 β-estradiol on the mRNA expression of three gene families in chicken livers. Quantitative data are presented as the fold changes compared with gene expression in the 0 mg/kg group. For each treatment in chicken liver tissues, data were presented as the mean ± SD (n = 6); *Significant differences (P < 0.05), **Highly significant differences (P < 0.01).