Effects of zinc on growth performance and biochemical parameters of piglets

Authors : KunKun WANG, HuaWei CUI, JianYi SUN, LiChun QIAN, Xiaoyan WENG

Pages : 519-526

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Publication Date : 0000-00-00

Article Type : Research Paper

Abstract :The effects of zinc on growth performance, activities of enzymes, and concentrations of hormones were investigated in this study. Crossbred insert ignore into journalissuearticles values(Duroc × Landrace × Large White); piglets insert ignore into journalissuearticles values(initial body weight: 26.66 ± 2.45 kg); were randomly assigned into 4 groups receiving a basal diet and were supplemented with 60, 300, 1000, or 3000 mg/kg of zinc insert ignore into journalissuearticles values(as ZnSO4.7H2O);. The results showed that supplementation of zinc at 3000 mg/kg increased insert ignore into journalissuearticles values(P < 0.05); the average daily feed intake, weight gain, gain/feed, and relative organ weight, and promoted the activities of alkaline phosphatase and Cu-Zn superoxide insert ignore into journalissuearticles values(P < 0.05); by 84.17% and 49.86%, respectively, when compared with the control group. It also led to higher hepatic metallothionein content and tissue zinc concentration insert ignore into journalissuearticles values(P < 0.05); than in the control group. Furthermore, the concentrations of insulin and neuropeptide Y insert ignore into journalissuearticles values(NPY); in the 3000 mg/kg group were increased insert ignore into journalissuearticles values(P < 0.05); by 55.19% and 26.53%, respectively, compared to the control group. The present study suggests that pharmacological dietary supplementation of zinc increased growth performance, activities of enzymes, tissue zinc concentrations, and plasma insulin and NPY concentrations. Key words: Zinc, growth performance, tissue zinc concentration, enzyme activity, hormone concentration, piglet
Keywords : Turk J Vet Anim Sci 2012, 36 519 526 Turk J Vet Anim Sci, vol 36, iss 5