Effects of nutritive peptides on growth,serum biochemical and antioxidant activity of Carassius auratus
To investigate the effects of nutritional peptides on growth,serum biochemical and antioxidant capacity of Carassius auratus. One control group was set up to feed basal diet. Experimental group 2 received the baseline diet in addition to a supplement of 2.0％ nutritional peptide. The average body weight of free-range Carassius auratus species is 50 g/tail. The results showed,that the body weight,body length,weight gain rate and specific growth rate of the experimental group were all higher than those of the control group for 52 and 128 days. There were significant differences between the experimental group and the control group(0.01 ≤ P ＜ 0.05)after 128 days of breeding. Serum total protein,albumin and lipase in the experimental group were higher than the control group. The breeding was compared for 128 days and 52 days. T-SOD activity was increased by 14.94％and 1.50％ in the experimental group,and decreased by 13.70％ in the control group(P ＞ 0.05). CAT activity decreased by 8.77％ and 3.43％ in the experimental group and 11.86％ in the control group(P ＞ 0.05). GSH-Px activity increased by 33.94％and 30.75％ in the experimental group,and 25.33％ in the control group(P ＞ 0.05). T-AOC ability increased by 12.50％ and 4.35％ in the experimental group,and decreased by 45.71％ in the control group(P ＞ 0.05). MDA group increased by 45.19％and 56.65％,and control group increased by 80.85％(P ＞ 0.05). The content of NO in the experimental group was increased by 126.38％ and 38.91％,respectively,while that in the control group was decreased by 11.25％(P ＜ 0.01). Nutritive peptides can promote the growth of Carassius auratus to a certain extent,the lipid metabolism is at a healthy level,has a certain antioxidant activity,can effectively improve the activity of endogenous antioxidant enzymes and antioxidant capacity of Carassius auratus,and enhance the ability of the body to maintain free radical balance.
万方数据
维普
