3.4. Hepatic expression of genes involved in growth regulation
As shown in Fig. 2, leptin in ovo administration modified hepatic expression of GHR and IGF-1, leptin-treated chickens showing significantly up-regulated expression of GHR in male chickens (Pb0.05, Fig. 2A) and IGF-I mRNA (Pb0.05, Fig. 2B) in both male and female chickens on 21 days of age.