壳聚糖对鹅生产性能与小肠形态结构的影响  

Effects of chitosan on growth performance and small intestinal morphology of goose

作　　者：苗志国[1] 李国旺[1] 谢红兵[1] 徐辉[1] 张清真[1] 

机构地区：[1]河南科技学院动物科学学院,河南新乡453003

出　　处：《广东农业科学》2011年第15期100-101,共2页Guangdong Agricultural Sciences

基　　金：河南科技学院大学生创新基金(2009007)

摘　　要：选用160只28日龄的豁眼鹅,随机分为4组(1个对照组和3个试验组,对照组饲喂基础日粮,试验组分别在基础日粮的基础上添加0.10%、0.20%和0.30%的壳聚糖),每组设4个重复,每个重复10只,进行为期28 d的饲养试验,测定鹅生长性能与小肠绒毛高度与隐窝深度。结果表明,与对照组相比,0.10%和0.20%壳聚糖组鹅的平均日增重分别提高了12.45%(P<0.05)和13.32%(P<0.05),料重比则分别降低了8.89%(P<0.05)和8.17%(P<0.05);十二指肠、空肠和回肠绒毛高度分别提高了35.20%(P<0.05)、30.90%(P<0.05)和29.57%(P<0.05),37.71%(P<0.05)、32.31%(P<0.05)和30.20%(P<0.05);隐窝深则分别降低了31.20%(P<0.05)、23.98%(P<0.05)和21.94%(P<0.05),33.89%(P<0.05)、22.24%(P<0.05)和21.05%(P<0.05)。The paper was aimed to investigate the effect of chitosan on growth performance and related hormone concentrations of growing goose,a total of 160 Huoyan geese（sex balance,28 d of age） were allotted to 4 groups（Based on basal diet,0%（control group）,0.10%,0.20% and 0.30% chitosan were added respectively）,each group had 4 replicates with 10 geese in each replicate,the feeding experiment lasted for 28 days.The results showed that compared with control groups,the average daily gain of 0.10% and 0.20% chitosan groups increased by 12.45%（P0.05） and 13.32%（P0.05）,villi height of small intestine（duodenum,jejeunum and ileum） increased by 35.20%（P0.05）,30.90%（P0.05）,29.57%（P0.05） and 37.71%（P0.05）,32.31%（P0.05）,30.20%（P0.05）,respectively.Whereas,FCR of those decreased by 8.89%（P0.05） and 8.17%（P0.05）,crypt depth of them decreased by 31.20%（P0.05）,23.98%（P0.05）,21.94%（P0.05） and 33.89%（P0.05）,22.24%（P0.05）,21.05%（P0.05）,respectively.

关 键 词：壳聚糖 鹅 生长性能 小肠 绒毛高度 隐窝深度 

分 类 号：S835[农业科学—畜牧学]