三丁酸甘油酯对肉鸡生长性能、养分表观消化率、屠宰性能、肠道形态及微生物菌群的影响  

Effects of Tributyrin on Growth Performance,Nutrient Apparent Digestibility,Slaughter Performance,Intestinal Morphology and Microbial Flora of Broilers

作　　者：彭丽莎[1] 孙健栋[1] 史艳云[1] 朱光宁 李卫芬[1] 余东游[1] 

机构地区：[1]浙江大学饲料科学研究所,农业部华东动物营养与饲料重点实验室,杭州310058 [2]湖南赛夫特生物科技有限公司,长沙410000

出　　处：《动物营养学报》2014年第2期466-473,共8页CHINESE JOURNAL OF ANIMAL NUTRITION

基　　金：浙江省重点科技创新团队计划资助(2011R50025-03);科技部东南沿海地区大学农业科技服务技术集成与示范项目(2013BAD20B02)

摘　　要：本试验旨在研究三丁酸甘油酯对肉鸡生长性能、养分表观消化率、屠宰性能、肠道形态及微生物菌群的影响。选用1日龄艾维茵肉公鸡1 800羽,随机分为6组,每组6个重复,每个重复50羽。对照组饲喂基础饲粮,试验组分别饲喂在基础饲粮中添加0.10%、0.15%、0.20%、0.30%、0.40%三丁酸甘油酯的试验饲粮。试验期42 d。结果表明:1)饲粮中添加三丁酸甘油酯有促进肉鸡生长的趋势,其中0.20%三丁酸甘油酯组效果最佳。2)与对照组相比,0.20%三丁酸甘油酯组的粗脂肪和粗纤维表观消化率均显著提高(P<0.05);肉鸡屠宰性能有改善的趋势,但差异不显著(P>0.05);十二指肠和空肠肠绒毛高度均显著提高(P<0.05),隐窝深度有变浅的趋势,但差异不显著(P>0.05);盲肠乳酸菌数量显著增加(P<0.05),大肠杆菌数量显著减少(P<0.05)。由此可见,饲粮添加三丁酸甘油酯能促进生长性能,提高饲料养分消化率,改善肠道形态和微生物菌群,肉鸡饲粮中三丁酸甘油酯适宜添加量为0.20%。This experiment was conducted to investigate the effects of tributyrin on growth performance, nutri-ent apparent digestibility, slaughter performance, intestinal morphology and microbial flora of broilers.A total of 1 800 one-day-old male Avian broilers were selected and randomly divided into 6 groups with 6 replicates per group and 50 broilers per replicate.Broilers in the control group was fed a basal diet, and broilers in the experimental groups were fed the basal diets supplemented with 0 .10%, 0 .15%, 0 .20%, 0 .30% and 0 .40% tributyrin, respectively.The experiment lasted for 42 days.The results showed as follows：diets sup-plemented with tributyrin tended to improve the growth performance of broilers, and the 0 .20% tributyrin group reached the highest.2 ） Compare with the control group, the apparent digestibility of ether extract and crude fiber in 0.20%tributyrin group was significantly increased （ P〈0.05）; the slaughter performance ten-ded to be improved, but had no significant change （ P〉0 .05 ）; the villus height in duodenum and jejunum was significantly increased （P〈0.05）;the crypt depth in duodenum and jejunum tended to be decreased, but had no significant change （P〉0.05）;the number of Lactobacillus in cecum was significantly increased （P〈0.05）, and the number of Escherichia coli in cecum was significantly decreased （P〈0.05）.In conclusion, diets supplemented with tributyrin can promote the growth performance, increase the nutrient digestibility and improve intestinal morphology and microbial flora of broilers.The optimal supplemented level of tributyrin is 0.20% for broilers.

关 键 词：三丁酸甘油酯 肉鸡 生长性能 肠道形态 微生物菌群 

分 类 号：S816.7[农业科学—饲料科学]