黄芪多糖对肉仔鸡生长性能和脏器指数及胰腺消化酶活性的影响  

Effects of astragalus polysaccharide on growth performance,viscera index and pancreatic digestive enzyme activities of broilers

作　　者：陶浩[1,2] 魏炳栋[1] 陈群[1] 

机构地区：[1]吉林省农业科学院畜牧分院,吉林公主岭136100 [2]吉林农业大学动物科学技术学院,吉林长春130118

出　　处：《湖南农业大学学报（自然科学版）》2011年第4期425-428,共4页Journal of Hunan Agricultural University(Natural Sciences)

基　　金：国家自然科学基金项目(30972104)

摘　　要：为探明黄芪多糖对肉仔鸡生长性能、脏器指数及胰腺消化酶活性的影响,选用1日龄健康艾维茵肉仔鸡256只,随机分为4组,分别饲喂含0、0.2%、0.4%和0.6%黄芪多糖的基础日粮(分别记为CK和A、B、C组),饲养期为14 d。结果表明,①添加黄芪多糖对7日龄和14日龄肉仔鸡的日增重、日采食量及料重比等生长性能指标的影响不显著(P>0.05)。②添加黄芪多糖对7日龄肉仔鸡肝脏指数和胰腺指数的影响明显(各试验组均高于对照组;B组的肝脏指数和胰腺指数与对照差异显著,C组的胰腺指数与对照差异极显著;B、C组的胰腺指数极显著高于A组),但对14日龄的影响处理间差异不显著。③各试验组的胰腺脂肪酶活性和胰腺蛋白酶活性均高于对照组:对于7日龄仔鸡,C组的胰腺蛋白酶活性显著高于对照组,且显著高于A组和B组;C组的胰腺脂肪酶活性极显著高于对照组和A、B组;对于14日龄仔鸡,各试验组的脂肪酶活性均极显著高于对照组,且C组显著高于A组和B组。添加黄芪多糖对7日龄和14日龄肉仔鸡胰腺淀粉酶活性的影响差异不显著。综合考虑,以0.6%黄芪多糖添加量较适宜,但其对肉仔鸡生长性能的影响不大。This experiment was conducted to study the effect of astragalus polysaccharide （APS） on growth performance, viscera index, and pancreatic digestive enzyme activities of broilers. 256 healthy 1-day-old avian broilers were randomly assigned to 4 treatment groups. Group CK, A, B and C received a basal diet supplemented with 0, 0.2%, 0.4% and 0.6% APS respectively for 14 d. The results showed that There were no significant effects of APS on growth performance both in 7-day-old and 14-day-old broilers （≥0.05）. There were significant effects of APS on viscera index in 7-day-old broilers （viscera index in group A, B and C was higher than that in the CK, there were significant differences of liver and pancreas index between group B and the CK, there were significant differences of pancreas index between group C and the CK and pancreas index in group B and C were significantly higher than that in group A）, but no significant effect on 14-day-old broilers. Pancreatic lipase and trypsin activity in group A, B and C was higher than that of the CK. For 7-day-old broilers, pancreatic trypsin activity in group C was significantly higher than that in group A, B and the CK; pancreatic lipase activity of group C was significantly higher than that of group A and B. For 14-day-old broilers, pancreatic lipase activity of group A, B and C was higher than that of the CK, and that of group C was significantly higher than that of group A and B. There was no significant effect of APS on pancreatic amylase activity both in 7-day-old and 14-day-old broilers. These results indicated adding of APS had no significant effects on the growth performance of broilers but could increase pancreatic digestive enzyme activities and adding of 6% APS was more suitable to enhance those activities.

关 键 词：肉仔鸡 黄芪多糖 生长性能 脏器指数 胰腺消化酶活性 

分 类 号：S831.5[农业科学—畜牧学]