Research Progress on the Mechanism of Synergistic Metabolism Through Tyrosine-DOPA Pathway Between Rumen Microorganisms and Ruminants
Tyrosine,an aromatic amino acid,is mostly involved in the research on melanin,and there are few reports on the interaction of tyrosine with rumen microorganisms and ruminant hosts.Relevant studies suggested that tyrosine deficiency leads to a limited growth of rumen microorganisms,including protozoa and bacteria(such as rumen protein-degrading bacteria),while tyrosine supplementation promotes the growth of rumen microorganisms,which coordinate with the body metabolism,affecting the host behavior and health through the tyrosine-DOPA pathway.This article reviews the mechanisms of tyrosine affecting the rumen microbial metabolism and further affecting the host body,with the aim of providing some ideas for improving ruminant behavior and health by regulating fermentation of rumen microbes through tyrosine supplementa-tion in breeding industry.