双歧杆菌、乳酸杆菌、芽孢杆菌、酵母是益生菌制剂中最常用、最具代表性的菌种。大多数商品化的益生菌制剂是将这些菌以单一的或复合的形式,混合在粉料载体中或添加些蛋白性原料,然后将益生菌制剂直接混合在饲料中添加或制成混合液直接加入水体。各种菌通过肠道并在肠道壁黏附 Bifidobacterium, Lactobacillus, Bacillus, Yeast is the most commonly used probiotic preparations, the most representative species. Most commercial probiotic preparations are prepared by mixing these bacteria in a single or complex form in a powder carrier or adding some proteinaceous material and then mixing the probiotics directly in the feed or as a mixture Add water. Various bacteria pass through the intestine and adhere to the intestinal wall