Fig. 12

Copper levels and sources on mRNA expression of CTR1 gene in broiler intestine. By the unfolding of the interaction Cu level vs source: (A) Cu levels in mg/kg within the INO and ORG source, (B) Sources within each Cu level in mg/kg. Mean values without equal letters (a-b) differ between groups (P < 0.05). CTR1 Copper conveyor 1, INO Source of inorganic trace minerals, ORG Source of organic trace minerals