Fig. 3From: Effect of in ovo folic acid injection on hepatic IGF2 expression and embryo growth of broilersEffects of in ovo folic acid injection on chromatin looseness of IGF2 promoter region in the liver. Numerical values (0, 50, 100, 150 μg) in X-axis mean the amount of folic acid which was injected into eggs. Bars with different letters are significantly different (P < 0.05)Back to article page