Abstract: Bamboo vinegar is a by-product of bamboo pyrolysis,containing a variety of organic compounds and having a significant antibacterial effect.Because bamboo vinegar contains many antibacterial components,the possibility of harmful microorganisms developing resistance to it is extremely small,bamboo vinegar has great potential as an alternative to antibiotics in livestock breeding.However,there are few research reports on the application of bamboo vinegar in animal production.Most of the reports focus on pigs and chickens.The authors summarized the effects and possible mechanisms of bamboo vinegar products in pig and poultry.It can reduce diarrhea in piglets by regulating the intestinal microbial flora,and exhibit selective antibacterial properties similar to acidifiers,such as reducing E.coli and increasing lactic acid bacteria.Bamboo vinegar also improves the intestinal morphology of chickens and enhances the quality of eggshells.Although bamboo vinegar and antibiotics have similar effects on promoting growth of animals,bamboo vinegar is better in improving meat quality and increasing its nutritional value.The positive impacts of bamboo vinegar on animal health can be attributed to the combined effects of its components including organic acids,phenols,aldehydes,ketones,and alcohols etc. There are still many issues that require further research,such as the identification of key active substances in bamboo vinegar,and the establishment of a database of its nutritional components.Research on the application of bamboo vinegar in the future should focus on the following aspects.Firstly,conducting safety assessments to ensure the safety of bamboo vinegar as a feed additive. Secondly,conducting research on processing technology to increase the content of active ingredients in products,and the third is strengthening the study of applied technologies and evaluating application effects to expand the scope of product application.

Key words: bamboo vinegar; pig; chicken; antibacterial activity