日粮蛋氨酸对28～70日龄吉林白鹅生长性能、血清生化指标及抗氧化能力的影响

发布时间：2018-01-24 21:22

本文关键词： 吉林白鹅蛋氨酸抗氧化能力　出处：《中国畜牧杂志》2017年03期 　论文类型：期刊论文

【摘要】：本试验采用单因子设计,研究蛋氨酸对28~70日龄吉林白鹅血清生化指标及抗氧化能力的影响。选择120只28日龄的健康吉林白鹅,随机分为4组,每组3个重复,每个重复10只。各组日粮蛋氨酸水平分别为0.23%、0.43%、0.63%、0.83%。试验期42 d。结果表明:不同蛋氨酸水平对吉林白鹅平均日采食量影响不显著(P0.05),0.63%蛋氨酸组平均日增重显著高于0.23%蛋氨酸组(P0.05),0.63%蛋氨酸组饲料增重比显著低于0.23%蛋氨酸组(P0.05);不同蛋氨酸水平对血清白蛋白、甘油三酯含量影响不显著(P0.05),0.63%蛋氨酸组血清总蛋白、球蛋白含量显著高于0.23%蛋氨酸组(P0.05),0.63%蛋氨酸组血清尿酸含量显著低于0.23%蛋氨酸组(P0.05);不同蛋氨酸水平对血清超氧化物歧化酶活性和丙二醛含量影响不显著(P0.05),0.83%蛋氨酸组血清谷胱甘肽含量和谷胱甘肽过氧化物酶活性显著高于0.23%蛋氨酸组(P0.05),但与其余各组差异不显著(P0.05)。本试验条件下,日粮蛋氨酸含量分别为0.63%和0.83%时28~70日龄吉林白鹅生长性能最好和抗氧化能力最高。
[Abstract]:The effects of methionine on serum biochemical indexes and antioxidant capacity of 2870 day old Jilin white geese were studied by single factor design. 120 healthy Jilin white geese aged 28 days were randomly divided into 4 groups. The levels of methionine in the diet of each group were 0.23 and 0.43, 0.63% respectively. The results showed that different methionine levels had no significant effect on the average daily feed intake of Jilin White Goose (P0.05). The average daily gain of the 0.63% methionine group was significantly higher than that of the 0.23% methionine group. The feed gain ratio of the 0.63% methionine group was significantly lower than that of the 0.23% methionine group. The effect of different methionine levels on serum albumin and triglyceride contents was not significant (P 0.05) or 0.63% methionine group. The content of serum uric acid in 0.23% methionine group was significantly higher than that in 0.23% methionine group. Different methionine levels had no significant effect on serum superoxide dismutase activity and malondialdehyde content (P0.05). Serum glutathione content and glutathione peroxidase activity in 0.83% methionine group were significantly higher than that in 0.23% methionine group (P 0.05). However, there was no significant difference compared with other groups (P 0.05). The content of methionine in diet was 0.63% and 0.83, respectively. The growth performance and antioxidant ability of 2870 day old Jilin white goose were the best.
【作者单位】：吉林农业大学动物科学技术学院;
【基金】：国家自然基金(31372331)
【分类号】：S835.5
【正文快照】： 蛋氨酸是家禽玉米-豆粕型日粮的第一限制性氨基酸,对动物的生长发育有着重要作用。首先,蛋氨酸作为营养物质可直接被动物体吸收利用合成蛋白质。其次,蛋氨酸对动物机体抗氧化能力有着重要调节作用。由于动物在生长过程中会产生较多氧自由基,机体过多的活性氧会使蛋白质和DNA的

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