本书叙述了发酵饲料用乳酸菌的分离筛选，芽孢杆菌的分离筛选和安全性评价，发酵饲料生产菌种的制备和保存，生物饲料的袋装厌氧发酵，控制生物饲料厚层因态发酵温度的方法，发酵饲料在生猪饲养中的应用和对肉品质的影响，并根据历年来作者在实际推广中遇到的农户关心的问题整理了74个问答，以便为广大读者提供清晰明确的指导。（The book accounts for the isolation and screening of lactic acid bacteria used for fermented feed, isolation and screening of bacillus and safety evaluation, preparation and preservation of the production strains of fermented feed, sacked anaerobic fermentation of fermented feed, the method of controlling the solid state fermentation temperature in the thick layers of fermented feed and the application of fermented feed in swine breeding and its effect on meat quality, and collects 74 questions and answers according to the problems of farmers’ concern that the author encountered in actual promotion in the past years, so as to provide clear and accurate guidance for the public readers.）