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Fig. 4 | BMC Veterinary Research

Fig. 4

From: Broiler responses to copper levels and sources: growth, tissue mineral content, antioxidant status and mRNA expression of genes involved in lipid and protein metabolism

Fig. 4

Copper levels and source on mRNA expression of MT gene in broilers breast muscle. By the unfolding of the source vs copper level interaction: (A) Cu levels in mg/kg within the INO and ORG source, (B) Sources within each copper level in mg/kg. 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

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