三种饲料添加剂对霉变饲料饲喂肉鸡的脱毒效果  

Comparative study of three additives on broilers fed mold-contaminated feed

作　　者：何学军[1] 张妮娅[1] 魏金涛[1] 徐雪梅[1] 齐德生[1] 

机构地区：[1]华中农业大学动物科技学院,武汉430070

出　　处：《中国农业大学学报》2007年第3期49-55,共7页Journal of China Agricultural University

基　　金：湖北省科技攻关项目(2006AA201C23)

摘　　要：选用180只8日龄艾维茵肉仔鸡,研究3种饲料添加剂(大豆异黄酮、葡甘露聚糖和膨润土)对饲喂霉变饲料的肉鸡生长性能、免疫功能和骨骼的影响。结果表明,与正常饲料组相比,霉变饲料组显著地降低了肉鸡的采食量、日增重,增加了料肉比(P<0.05);但霉变饲料中添加大豆异黄酮,显著地提高了肉鸡采食量、日增重(P<0.05),降低了料肉比(P<0.05),提高了7周末血清中免疫球蛋白IgA和IgG的浓度。霉变饲料中添加葡甘露聚糖和膨润土显著提高肉鸡日增重(P<0.05),对日采食量有提高的趋势(P>0.05)。但膨润土显著降低了胫骨中钙、磷的含量(P<0.05)。由此可见,3种添加剂对霉变饲料均有一定的脱毒作用,大豆异黄酮对霉变饲料的脱毒效果显著优于葡甘露聚糖和膨润土。One hundred and eighty 8-day-old avian broilers were used to investigate effects of isoflavone （SI）, bentonite and glucomannan, on growth, immunity function and tibia, Feed intake and average daily weight gain were significantly decreased but the feed/gain ratio increased significantly （P〈 0.05） in broilers fed moldy corn diets than those fed less moldy corn diets, Both feed intake and average daily gain increased significantly while the feed/gain ratio was decreased substantially in broilers by adding 100 and 200 mg/kg SI. Also, serum IgA and IgG concentrations increased significantly （ P 〈 0.05）, The awerage daily gain in broilers was significantly （ P 〈 0.05） increased by adding 0.05 % bentonite or 0.05% glucomannan, However, calcium and phosphate levels in tibia were significantly decreased by adding 0.05 % bentonite, In conclusion, soybean isoflavones more significantly increased growth of Avian broilers when added to a moldy corn diet than glucomannan or bentonite.

关 键 词：霉菌毒素 添加剂 肉鸡 生长性能 大豆异黄酮 

分 类 号：S816.7[农业科学—饲料科学] S831[农业科学—畜牧学]