动物营养学报2017，Vol.29Issue(12)：4469-4476,8.DOI:10.3969/j.issn.1006-267x.2017.12.027
苜蓿皂苷对断奶仔猪生长性能、肠道菌群、组织抗氧化能力及相关酶m RNA表达的影响
Effects of Alfalfa Saponin on Growth Performance, Intestinal Microflora, Antioxidant Ability and Related Enzyme mRNA Expression in Tissues of Weaned Piglets
摘要
Abstract
The experiment was conducted to study to the effects of alfalfa saponin on growth performance, in-testinal microflora, antioxidant ability and related enzyme mRNA expression in tissues of weaned piglets.A to-tal of 24 crossed-bred ( Landrace×Large White) piglets with an average body weight of 8 kg were randomly as-signed to 2 groups with 3 replicates each and 4 piglets in each replicate.The piglets in control group were fed a basal diet, and in alfalfa saponin group were fed the basal diet supplemented with 0.25% alfalfa saponin.The experiment lasted for 30 days after 10 days pre-experiment.The results showed as follows:1) compared with control group, dietary alfalfa saponin significantly increased average daily gain ( P<0.05) and significantly de-creased the ratio of feed to gain ( P<0.05) of weaned piglets.2) Compared with control group, dietary alfalfa saponin significantly reduced pH in duodenum and cecum (P<0.05), significantly increased the numbers of Lactobacillus in duodenum, jejunum and cecum ( P<0.05) of piglets.3) Compared with control group, dieta-ry alfalfa saponin significantly increased the activity of glutathion peroxidase ( GSH-Px) and catalase ( CAT) in liver and kidney ( P<0.05) , and significantly improved the mRNA expression level of GSH-Px in liver and jejunum as well as the mRNA expression level of CAT in duodenum and ileum ( P<0.05) of piglets.In sum-mary, dietary alfalfa saponin can enhance growth performance of weaned piglets, improve antioxidant ability in tissues and have a good benefit on intestinal microflora.关键词
苜蓿皂苷/断奶仔猪/生长性能/肠道菌群/抗氧化能力/mRNA表达量Key words
alfalfa saponin/weaned piglet/growth performance/intestinal microflora/antioxidant ability/mRNA expression level分类
农业科技引用本文复制引用
王文静,刘伯帅,陈要鹏,孙骁,肖俊楠,林锦翔,王成章,史莹华..苜蓿皂苷对断奶仔猪生长性能、肠道菌群、组织抗氧化能力及相关酶m RNA表达的影响[J].动物营养学报,2017,29(12):4469-4476,8.基金项目
苜蓿品种引进与中低产田土壤生态环境修复(2015-Z46) （2015-Z46）
现代农业产业技术体系(CARS-35) （CARS-35）
