Compared with positive control group, replacement of 70% dietary di-calcium phosphorous with 300FTU/kg phytase had no adverse effect on laying performance.

• 结果表明 ,添加 3 0 0FTU/Kg植酸酶替代产蛋鸭高峰饲料中 70%25磷酸氢钙时就可保持产蛋鸭的生产性能不变。