葡甘露聚糖对饲喂黄曲霉毒素B1日粮肉仔鸡生长性能、血清指标及器官指数的影响

本文通过测定肉仔鸡生长性能、血清指标及器官指数,探讨葡甘露聚糖对黄曲霉毒素B1(AFB1)的吸附作用。选用180只体重接近的8日龄肉仔鸡随机分成3组,分别为基础日粮组、基础日粮 0.1mg/kgAFB1组、基础日粮 0.1mg/kgAFB1 0.1%葡甘露聚糖组,试验期21d。试验结果表明:(1)基础日粮中加入0.1mg/kgAFB1,肉仔鸡的体重、日增重、日采食量显著下降,料重比升高。血清中总蛋白、白蛋白含量显著下降,谷草转氨酶、谷丙转氨酶活性显著升高。肝脏、肾脏、心脏和脾脏肿胀,胸腺、法氏囊萎缩;(2)0.1mg/kgAFB1日粮中加入0.1%葡甘露聚糖,明显改善肉仔鸡的生长性能,以上相关指标基本恢复到正常水平。由此可知,葡甘露聚糖减轻或基本消除了AFB对肉仔鸡生长性能、组织器官的不良影响。

Effects of Glucomannan on Growth Performance, Serum and Organ Indices of Broilers Fed with Dietary Containing Aflatoxin B1

An experiment was conducted to determine the effects of glucomannan on growth performance, serum and organ indices of broilers fed a basal diet with aflatoxin B1. Glucomannan mycotoxin adsorbent was tested for efficacy in preventing aflatoxin mycotoxicoses. One hundred and eighty 8-day-old broiler chicks were randomly divided into 3 groups: basal diet, basal diet 0.1 mg/kg aflatoxin B1, basal diet 0.1 mg/kg aflatoxin B1 0.1% glucomannan. The basal diet was used in control group, and the experiment lasted for 21 days. The results showed that (1)growth performance of broiler fed 0.1 mg/kg AFB1 was affected:BW, ADG and ADFI were significantly decreased,while F/G was increased;the contents of total protein and albumin in serum were significantly decreased,but activities of glutamic-pyruvic transaminase and glutamic-oxalacetic transaminase were significantly increased;weights of liver, kidney, spleen and heart were significantly increased,and weights of thymus and bursa were reduced; (2)growth performance, serum indices and organ morphology returned to normal levels by the addition of 0.1% glucomannan to diets containing 0.1 mg/kg AFB1.As a result,glucomannan could reduce or almost eliminate the negative effects of AFB1 on growth performance and organs of broiler chickens.