Fig 2: Effects of different copper sources and levels on the mRNA Expression of CTR1(A), ATP7A(B), ATP7B(C), ATOX1(D), ASCT2(E) and PepT1(F) genes in liver. CuSO4 = copper sulfate; Cu-Gly = copper glycinate; Cu-Pro = copper proteinate; CTR1 = high affinity copper uptake protein 1; ATP7A = ATPase copper transporting alpha; ATOX1 = Antioxidant 1 copper chaperone; ASCT2 = lanine-serine-cysteine transporter, type-2; PepT1 = peptide transporter 1. Data represent mean values ± standard error of the mean (n = 6). Significant differences between processing treatments are represented by different lowercase letters (P < 0.05).

Fig 3: Effects of different copper sources and levels on the protein expression for CTR1(A), and PepT1(B) in jejunal mucosa. CuSO4 = copper sulfate; Cu-Gly = copper glycinate; Cu-Pro = copper proteinate; CTR1 = high affinity copper uptake protein 1; PepT1 = peptide transporter 1. Data represent mean values ± standard error of the mean (n = 6). Significant differences between processing treatments are represented by different lowercase letters (P < 0.05).