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Antibiotics are widely used in animal husbandry as veterinary drugs and feed additives, resulting in a large amount of antibiotic residues in animal feces. In order to achieve harmless and resourceful utilization of livestock manure, anaerobic fermentation is the most extensive treatment method in the world. It briefly introduces the residues of antibiotics such as oxytetracycline, chlortetracycline, and tetracycline, which are currently used the amount. The effects of antibiotics on anaerobic fermentation gas production performance and research progress are discussed in recent years. A large number of results indicate that the influence of antibiotics on the fermentation system mainly occurs in the initial stage of fermentation. There are mainly H 2  / CH 4  reduction path ways, acetic acid fermentation pathways and methyl conversion pathways. Methanogenic and acidogenic microorganisms are closely related to these pathways in the fermentation system. And the effects of antibiotics on the methanogenic microorganisms in the fermentation system are described. It is suggested that the future research direction should further study the effect of antibiotics on antibiotic resistance genes in livestock and poultry manure.

Research progress on the effect of antibiotics on anaerobic fermentation gas production and microorganisms of animal manure