动物营养学报Issue(1)：185-195,11.DOI:10.3969/j.issn.1006-267x.2015.01.023
甜菜碱对肉鸡生长性能、脂质代谢及肌肉风味品质的影响
Effects of Betaine on Growth Performance, Lipid Metabolism and Flavor Quality in muscle of Broilers
摘要
Abstract
This study was conducted to evaluate the effects of betaine on growth performance, lipid metabolism and flavor quality in muscle of broilers. A total of 240 one-day-old healthy Arbor Acres male broilers were randomly al-lotted to 4 groups with 6 replicates per group and 10 broilers per replicate. Control group was fed a basal diet and 3 experimental groups were fed the basal diets supplemented with betaine of 0.05%, 0.10%and 0.20%, respectively. The whole experiment lasted for 42 days, and from day 1 to day 21 was prior period, while from day 22 to day 42 was later period. The results showed as follows:compared with control group, supplementing 0.20%betaine signif-icantly increased average daily gain and body weight in the prior, later and whole periods ( P<0.05) , and signifi-cantly decreased the ratio of feed to gain of broilers in whole period ( P<0.05) . Compared with the control group, betaine supplemented in diets significantly improved inosinic acid content in breast muscle, and the contents of in-tramuscular fat, flavor amino acid and total free amino acid in breast and thigh muscles of broilers (P<0.05). Compared with the control group, the contents of saturated fatty acid ( SFA) , unsaturated fatty acid ( UFA) and monounsaturated fatty acid in breast and thigh muscles, and polyunsaturated fatty acid content and UFA/SFA in breast muscle were significantly increased in 0.20% betaine group (P<0.05). Compared with the control group, 0.20% betaine group had significantly lower contents of triglyceride, total cholesterol and adponectin (P<0.05), and significantly higher contents of high-density lipoproteins, leptin and insulin in serum of broilers ( P<0.05) . In conclusion, supplementing betaine in diet can significantly improve growth performance, and promote flavor quali-ty in muscle and lipid metabolism of broilers. The optimal level of betaine supplemented in diet is 0.20%.关键词
甜菜碱/肉鸡/生长性能/脂质代谢/风味品质Key words
betaine/broiler/growth performance/lipid metabolism/flavor quality分类
农业科技引用本文复制引用
马建爽,常文环,张姝,郑爱娟,刘国华,蔡辉益..甜菜碱对肉鸡生长性能、脂质代谢及肌肉风味品质的影响[J].动物营养学报,2015,(1):185-195,11.基金项目
国家肉鸡产业技术体系( CARS-42-G15) （ CARS-42-G15）
