That proves: micro-ecological preparation has positive effect to prevent and cure Salmonella Pullorum Disease, and have obvious positive effect to raise the daily growing weight of chickens.

• 由此可见，微生态制剂能有效地预防、治疗鸡白痢病，并对提高鸡只的日增重有明显的作用，同时对鸡群中鸡白痢病的净化具有一定的意义。