Application of microecological preparation in premix

There are so many antibiotics in the premix, and some are high in zinc and copper, can microecological agents coexist with these drugs? Most of them are not allowed. If you make the formula, get rid of antibiotics and high copper-to be sure, as long as the premix does not add water (moisture less than 13%), the microecological agent can survive in the premix containing drugs. However, whether the microecological preparation will be killed by antibiotics and copper and zinc in the premix depends on the characteristics of the bacteria used in the premix, but whether the microecological preparation will be killed by antibiotics and copper and zinc after eating into the animal intestine. Only those strains that have been specially selected will not be killed by the above drugs. The use of microecological agents is conditional. Among the four major types of microecological agents approved by the Ministry of Agriculture: lactic acid bacteria, Bacillus, yeast and photosynthetic bacteria, Bacillus has the highest stress resistance. Good Bacillus strains ferment Bacillus products that can tolerate most antibiotics and high-dose environments. Others are relatively poor-there should be no problem if it is Bacillus. -- Bacillus has strong stress resistance, while others are relatively poor.-- Bacillus has the highest stress resistance.