摘要
本试验研究了饲粮中添加0.2％、0.4％和0.6％果寡糖对艾维茵商品代肉鸡消化机能的影响。结果表明:肉鸡日粮中添加0.2％、O.4和0.6％果寡糖使粗纤维的表观消化率分别提高了21.09％(P<0.05)、33.28％(P<0.01)和29.90％(P<0.01),添加O.2％和0.4％果寡糖使粗灰分的表观消化率分别提高了21.83％(P<0.05)和31.94％(P<0.05),添加0.4％果寡糖使钙和磷的表观消化率分别提高了17.39％(P<O.05)和17.76％(P<0.05),果寡糖不影响粗蛋白和粗脂肪的表观消化率;添加0.2％和0.4％果寡糖使小肠(十二脂肠远端至回盲结合部)内容物中总蛋白水解酶、胰蛋白酶、淀粉酶活性分别提高了56.31％(P<0.05)和73.10％(P<0.05),41.65％(P<O.05)和58.84％(P<0.05)17.08％(P<0.01)和31.51％(P<0.05),果寡糖对小肠内容物中糜蛋白酶和脂肪酶活性以及胰脏中消化酶活性无明显影响;添加0.2％和0.4％果寡糖使回肠绒毛高度分别提高了22.50％(P<0.05)和28.72％(P<0.01),使腺窝深度分别降低了15.03％(P<0.05)和20.77％(P<0.05);添加0.4％和O.6％果寡糖使盲肠壁重和盲肠隐窝深度分别提高了30.66％(P<0.05)和38.15％(P<0.05),22.27％(P<0.05)和26.71％(P<0.01),添加0.6％果寡糖使盲肠上皮粘膜细胞密度提高了22.36％(P<0.05)。
Four hundred and eighty Avian commercial broilers were used to study the effects of dietary fruc-tooligosaccharide (FOS) at the level of 0.2% ,0.4% ,and 0.6% on the digestive function of broiler.The digestive experiment showed that addition of 0.2% ,0.4% and 0.6% FOS improved the apparent digestibilities of crude fiber by 21.09 % (P<0.05),33.28%(P<0.01) and 29.90% (P < 0.01)as compared with control, respectively. Addition of 0.2% and 0.4% FOS improved the apparent digestibilities of crude ash by 21.83 % ( P < 0.05 ) and 31.94 % ( P < 0.05 ) , respectively . The apparent digestibilities of Ca and P were improved by 17.39 % ( P < 0.05 ) and 17.76 % ( P < 0.05 ) with 0.4% FOS consumption.Supplementation with 0.2% and 0.4% FOS improved the activities of total protease,trypsin and a- amylase in the small intestinal content (from the distal end of the duodenum to the ileo - caecal junction) by 56.31% (P < 0.05) and 73.10%(P<0.05),41.65%(P<0.05)and 58.84% (P < 0.01), 17.08(P < 0.01) and 31.51% (P < 0.05) .respectively. However, FOS had no effect on the activities of chymotrypsin and lipase in the small intestinal content and of digestive enzymes in pancreas. Morphological measurement of ideal and cecal mucosa did show response to consumption of FOS. Consumption of 0.2% and 0.4 % FOS increased the ideal villus height by 22.50 % (P < 0.05 ) and 28.72 % ( P < 0. 01) and reduced the ideal crypt depth by 15.03 % (P < 0.05 ) and 20.77 % ( P < 0.05 ) , respectively. Consumption of 0. 4% and 0.6% FOS increased cecal wall weight and cecal mucosal crypt depth by 30.66%(P<0.05) and 38.15%(P< 0.05),22.27%(P<0.05) and 26.71% (P < 0.01) ,respectively. Cecal mucosal cell density was increased by 22.36% ( P < 0.05 ) with 0.6 % FOS supplementation.
出处
《中国粮油学报》
EI
CAS
CSCD
北大核心
2003年第1期49-54,共6页
Journal of the Chinese Cereals and Oils Association
基金
浙江省自然科学基金重点项目(ZD9902)
浙江省科委重点攻关项目(001102263)
关键词
果寡糖
肉鸡
消化机能
饲料
添加剂
fnlctooligosaccharide,broiler,digestive function.
