动物营养学报2017，Vol.29Issue(12)：4485-4494,10.DOI:10.3969/j.issn.1006-267x.2017.12.029
饲粮添加壳寡糖对肉鸡肉品质、抗氧化性能、小肠黏膜组织结构及肠道菌群的影响
Effects of Dietary Chitosan Oligosaccharide on Meat Quality, Antioxidant Activity, Intestinal Mucosal Structure and Intestinal Flora of Broilers
摘要
Abstract
This experiment was conducted to study the effect of dietary chitosan oligosaccharide ( COS ) on meat quality, antioxidant activity, intestinal mucosal structure and intestinal flora of broilers.A total of 300 one-day-old healthy Arbor Acres ( AA) male broilers were randomly allotted to 5 groups with 6 replicates per group and 10 birds per replicate.The blank control group was fed a basal diet without any antibiotic, the posi-tive control group was fed the basal diet supplemented with 100 mg/kg chlortetracycline, and the experimental groups were fed the basal diet supplemented with 50, 100 and 150 mg/kg COS, respectively.The experiment lasted for 42 days.The results showed as follows, compared with the blank control group:1) dietary supple-mented with 100 mg/kg COS significantly increased the redness ( a*) value of breast muscle and thigh muscle ( P<0.05) .2) Dietary supplemented with 50 and 100 mg/kg COS significantly increased the serum total su-peroxide dismutase ( T-SOD ) activity during 1 to 21 days of age ( P<0.05 ) , dietary supplemented with 100 mg/kg of COS significantly increased the total antioxidant capacity ( T-AOC) , T-SOD activity and gluta-thione peroxides (GSH-Px) activity in serum during 22 to 42 days of age (P<0.05), dietary supplemented with 50 mg/kg COS significantly increased serum T-SOD and GSH-Px activities during 22 to 42 days of age (P<0.05).3) Dietary supplemented with 100 mg/kg COS significantly increased the villous height and villous height/crypt depth of jejunum during 1 to 21 days of age and 22 to 42 days of age (P<0.05).4) Dietary sup-plemented with 50 and 100 mg/kg COS significantly decreased the ileal Escherichia coli number (P<0.05). 5) Dietary supplemented with 100 mg/kg COS significantly increased the average daily gain of broilers ( P<0.05) .It can be concluded that dietary COS can increase antioxidant activity, improve meat quality and intesti-nal mucosal structure, and improve the intestinal flora structure to a certain extent of broilers.The optimum supplemental level of COS in diet for broilers is 100 mg/kg.关键词
壳寡糖/肉鸡/抗氧化/小肠黏膜组织结构/肠道菌群Key words
chitosan oligosaccharide/broilers/antioxidation/intestinal mucosal structure/intestinal flora分类
农业科技引用本文复制引用
白洁,刘国华,年芳,郑爱娟,蔡辉益,常文环..饲粮添加壳寡糖对肉鸡肉品质、抗氧化性能、小肠黏膜组织结构及肠道菌群的影响[J].动物营养学报,2017,29(12):4485-4494,10.基金项目
现代农业产业技术体系北京市家禽创新团队项目 （）
现代农业产业技术体系国家肉鸡产业技术体系项目( CARS-42) （ CARS-42）
