低聚木糖在饲料中的应用研究与发展,介绍了低聚木糖在饲料中的应用进展,益生素和低聚木糖对于断奶仔猪的影响

益生素和低聚木糖对断奶仔猪生产性能、消化酶活性、血液指标和肠道微生物的影响

杨海英，杨在宾，杨维仁，李兆勇(flJ东农业大学动物科技学院，山东泰安271018)

摘要：选用(21士2)日龄体质量为(6.83土0.9)kg的PIC断奶仔猪240头，随机分为4个处理，正对照组(positivediet，PD)含有较多的鱼粉和乳清粉；负对照组(negative diet，ND)含有较少的鱼粉和乳清粉，较多的豆粕；负对照+0.35％益生素(negative diet+probiotics，ND+P)；负对照+0.02％低聚木糖(negative diet+xylo-oligosaccharide，ND+X)。饲嚷至65日龄屠宰。结果显示，在断奶仔猪日粮中乳清粉和鱼粉从5.50％降低到2.50％，豆粕从22.50％增加到26.50％可导致仔猪消化道酶活性、血糖和血清总蛋白水平、盲肠乳酸杆菌数量降低(P<0.05)，血清尿素氮、盲肠大肠杆菌数量、仔猪腹泻指数和料重比增(P<0.05)。添加益生素和低聚木糖可以提高仔猪消化道蛋白质、脂肪和淀粉消化酶活性(P<0.05)，降低料重比(P<0.05)；提高血糖，降低血清尿素氮水平(P<0.05)，改善蛋白质平衡和能量代谢；提高盲肠乳酸杆茵数量，减少大肠杆菌数量(P<0.05)，降低仔猪的腹泻指数(P<0.05>。添加益生素和低聚木糖与否，均不影响日增重和采食量(P>0.05)。益生素和低聚木糖可以改善断奶仔猪的消化功能、后消化道有益茵群、饲料转化效率，防治仔猪腹泻。

关键词：断奶仔猪；益生素；低聚木糖；生产性能；消化酶；血液指标；微生物 中图分类号：S816.7；s852 文献标识码：A 文章编号：1005—4545(2009)07-0914—06 Effect of probiotics and xylo-oligosaccharide on performance，digestive enzyme activities，blood index and intestinal microflora of early weaned piglets

YANG Hal—ying，YANG Zai—bin。，YANG Wei—Fen。LI Zhao—yong(College of Animal Science and Technology，Shandong Agricultural University，Tai’an，Shandong 271018，China)

Abstract：To evaluate the effects of supplemental probiotics and xylo-oligosaecharide on performance，digestive enzyme activities，blood index and intestinal microflora.Two hundred and forty crossbred early weaned PIC piglets with an average initial weight of(6.83士0.9)kg，weaned at(21士2)d of age，were divided into four groups.Control I(positive diet，with no probiotics and xylo-oligosaccharide but more fish meal，whey powder and little soybean meal)，Control II(negative diet，with no probiotics and xylo-oligosaccharide but less fish meal。whey powder and more soybean meal)，Negative diet+0.35％probiotics，negative diet+0.02％xylo-oligosaccharide.The results of theses studies suggested that whey powder and fish meal from

5.50％to 2.50％，soybean meal from 22.50％to 26.50％could result in decreasing of alimentary canal enzyme activity，blood sugar，total serum protein and the quantities of Bacillus in appendix(P<O.05)，and raising of serum ureanitrogen，the quantities of Escherichia coli in appendix，diarrhea indexes and Feed／Gain(P<0.05).Addition of probiotics and xylo-oligosaccharide could significantly improve the activities of alimentary canal protein，lipase and amylase(P<O.05)，decrease Feed／Gain and the levels of blood sugar and decrease the levels of serum urea nitrogen and improve protein equilibrium in blood and energy metabolism.The quantities of bacillus were improved。Escherichia coli were decreased in appendix(P<0.05).Diarrhea indexes were decreased(P<0.05).Whether adding probiotics and xylo-oligosaccharide or not could not affect ADG and ADFI(P>0.05).Addition of probiotics and