Fig. 6

Copper levels and sources on mRNA expression of MT gene in the broiler liver. By the pooled means of the factors (Cu Level and Sources): (A) Copper levels in mg/kg of the grouping of sources (INO and ORG), (B) Sources of grouping of Cu levels. Mean values without equal letters (a-b) differ between groups (P < 0.05). MT Metallothionein, INO Source of inorganic trace minerals, ORG Source of organic trace minerals