动物营养学报2025，Vol.37Issue(3)：1760-1770,11.DOI:10.12418/CJAN2025.149
饲粮中添加蛋氨酸锌对肉雏鸡生长性能、血清生化指标、抗氧化能力和肠道健康的影响
Effects of Diet Supplemented with Zinc Methionine on Growth Performance,Serum Biochemical Indices,Antioxidant Capacity and Intestinal Health of Broiler Chickens
摘要
Abstract
This experiment was conducted to investigate the effects of diet supplemented with different levels of zinc methionine on growth performance,serum biochemical indices,antioxidant capacity and intestinal health of broiler chickens.A total of 250 one-day-old Ross 308 male broiler chickens with similar body weight were randomly divided into 5 groups with 5 replicates per group and 10 broilers per replicate.Each group was sup-plemented with zinc in the form of methionine zinc on the basis of basal diet with the amounts of 0(control group),20,40,60 and 80 mg/kg,respectively.The experiment lasted for 21 days.The results showed as follows:1)compared with the control group,dietary supplementation of 60 and 80 mg/kg zinc methionine ex-tremely significantly increased the average daily gain of broilers at 14 days of age(P＜0.01),and supplemen-tation of 20,40,60 and 80 mg/kg zinc methionine extremely significantly decreased the average daily feed in-take and the ratio of feed to gain of broiler chickens at 14 days of age(P＜0.05);2)compared with the con-trol group,dietary supplementation of 60 and 80 mg/kg zinc methionine significantly increased the total super-oxide dismutase(T-SOD)activity in serum of broiler chickens at 21 days of age(P＜0.05),and supplementa-tion of 80 mg/kg zinc methionine significantly decreased the malondialdehyde(MDA)content(P＜0.05);3)compared with the control group,dietary supplementation of 80 mg/kg zinc methionine significantly increased the mRNA relative expression level of tight junction protein Claudin-1 in jejunal mucosa of broiler chickens(P＜0.05),and supplementation of 40,60 and 80 mg/kg zinc methionine significantly decreased the mRNA relative expression level of inflammatory factor tumor necrosis factor-α(TNF-α)(P＜0.05).In summary,diet supplemented with 40 to 80 mg/kg zinc methionine can improve the growth performance,antioxidant capacity and intestinal mucosal barrier function of broiler chickens in different degrees.[Chinese Journal of Animal Nu-trition,2025,37(3):1760-1770]关键词
蛋氨酸锌/肉雏鸡/生长性能/抗氧化能力/肠道健康Key words
zinc methionine/broiler chickens/growth performance/antioxidant capacity/intestinal health分类
农业科技引用本文复制引用
马春建,邵玉新,索琰瑞,李昊轩,李艺普,江鸣珂,高雨生,张博,李晶,王铮..饲粮中添加蛋氨酸锌对肉雏鸡生长性能、血清生化指标、抗氧化能力和肠道健康的影响[J].动物营养学报,2025,37(3):1760-1770,11.基金项目
国家自然科学基金青年基金项目(32202679) （32202679）
