How to apply Bacillus subtilis in formulation

This post was finally edited by Han Xiaorong at 14:12 on 2009-11-30. As we all know, after antibiotics were banned, the addition of microecological agents has been in full swing, and Bacillus subtilis is the most widely used. How much and how much should be added to pig and chicken feed? welcome to discuss. Han Xiaorong added the following content to his sofa at 14:11 on 2009-11-30: is the addition of 1/10000 suitable for any feed? Pretty much, depending on the number of live bacteria in the product you use