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. 2019 Dec 26;99(3):1454–1461. doi: 10.1016/j.psj.2019.11.001

Figure 2.

Figure 2

Effect of heat stress and glutamine on the mRNA expression of antioxidant enzymes of thigh muscle in broilers. a,b,c,dGroups without common letters differ significantly (P < 0.05); Duncan's test was used to compare statistical differences among the CON, HS, HS-0.5% Gln, HS-1.0% Gln, and HS-1.5% Gln groups. CON = broilers were kept in the normal-temperature environment and fed a basal diet; HS = broilers were kept in the circular heat stress environment and fed a basal diet; HS-0.5% Gln, HS-1.0% Gln, and HS-1.5% Gln = broilers were kept in the circular heat stress environment and fed basal diets supplemented with 0.5, 1.0, and 1.5 Gln. SOD, superoxide dismutase; GSH-Px, glutathione peroxidase; CAT, catalase. The mRNA expression of each gene of the CON was set to be 1. CON, control; Gln, glutamine; HS, heat stress.