霉变日粮中添加酵母葡聚糖对肉仔鸡生长性能、器官指数及血清指标的影响

试验旨在研究酵母葡聚糖对饲喂霉变日粮肉仔鸡生长性能、血清指标及器官指数的影响。选用180只体重接近的4日龄肉仔鸡随机分成5组,分别为对照组(基础日粮组)、发霉饲料组(日粮中的正常玉米由发霉玉米替代)、试验组Ⅰ(发霉饲料+0.05%酵母葡聚糖)、试验组Ⅱ(发霉饲料+0.10%酵母葡聚糖)、试验组Ⅲ(发霉饲料+0.15%酵母葡聚糖),试验期为21 d。结果表明:发霉玉米日粮中低剂量的霉菌毒素对肉仔鸡生长性能无影响,但可导致肝脏、心脏和脾脏肿胀,胸腺和法氏囊萎缩,血清中总蛋白、白蛋白、尿素氮浓度降低;在发霉玉米日粮中添加0.05%~0.15%的酵母葡聚糖,能降低发霉玉米中霉菌毒素对内脏器官的毒害作用,使器官指数和血清指标基本恢复到正常水平。

Effects of yeast glucan added in mold-contaminated feed on growth performance, organ and serum indices of broilers

An experiment was conducted to study the effects of yeast glucan added in mold-contaminated feed on growth performance,organ and serum indices of broilers.180 broiler chicks(4-day-old)were randomly divided into 5 groups:control group(basal diet),mold-contaminated feed group(moldy corn added in basal diet),test groupⅠ(mold-contaminated feed+0.05%glucan),test groupⅡ(mold-contaminated feed+0.10%glucan),test groupⅢ(mold-contaminated feed+0.15%glucan),and the experiment lasted for 21 days.The result showed that the growth performance of broilers fed mold-contaminated feed had no difference;weights of liver,heart and spleen were significantly increased,and the weights of thymus and bursa were reduced;the contents of total protein,albumin and blood urea nitrogen in serum were decreased.With 0.05%~0.15% yeast glucan added in mold-contaminated feed,organ morphology and serum indices returned to normal levels.