酵母菌多糖对肉鸡促长增重的作用

Effects of Yeast Polysaccharide on Weight-Increasing of Meat Chickens

酵母菌多糖（ＹＰＳ）是一种具有生物活性的新型微生态调节剂。用适量的ＹＰＳ对肉鸡进行肌注和饮服，均可使鸡增重，在喂给含喹乙醇添加剂的全价商品饲料中，１－２组（饮服ＹＰＳ剂量为２０ｍｇ／ｋｇ）和３－４组（肌注ＹＰＳ剂量为２ｍｇ／只）肉鸡的增重效果显著，分别为４．００％和３．４５％；在喂给不含喹乙醇添加剂的全价商品饲料中，２－２组（饮服ＹＰＳ剂量为４０ｍｇ／ｋｇ）和２－３组（肌注ＹＰＳ剂量为２ｍｇ／只）肉鸡的增重效果显著，分别为６．３０％６．０３％。此外，２－２组的肉料比最低（１：２．０８），饲料报酬比对照组提高６．７２％。

YPS was a new kind of micro-ecological regulation agent. After the meat chickens were in- jected and administered YPS, the weight of meat chickens were found increase. Feeding complete feed with olaquindox additive, the efficiency of gain between 1-2 group (administered YPS 2 mg/kg) and 1 -4 group ( injected 2 mg/kg was remarkable. The body- weight respectively increased 4.0 and 3.45 percent. Feeding complete feed without olaquindox additive, the difference between 2-2 group ( admin- istered YPS 2mg/kg) and 2-3 group (injected YPs 2 mg/kg) was significant, and the rate of weight- increasing was 6.3 and 6.03 percent, respectively. Compared with the control group, the meat-feed ra- tio of 2-2 group was the lowest (1:2.08) , and the feed payment of 2-2 group increased 6.72 percent.