Research Progress on Effect of Gut Microbiota on Important Economic Traits of Animals in Aquaculture:A Review
With the concept of green and sustainable development running through the whole process of aquaculture,the transformation and upgrading of Chinese aquaculture have entered a new developmental stage,and the gut microbiota of aquatic animals has gradually become an important research field.Gut microflora,as an important part of animals,plays a key role in promoting the growth and development,improving disease resistance and coping with environmental stress of aquatic animals.In terms of growth and quality,healthy gut microbiota can improve the growth rate,feed conversion rate and muscle and fat content of aquatic animals;in terms of disease resistance,healthy gut microbiota can promote the development of aquatic animal immune system,and inhibit the colonization of pathogenic bacteria;in terms of stress resistance,healthy gut microbiota can improve the adaptation to cold stress,low salt stress and other environmental stresses in aquatic animals.Relevant research is helpful to explore the influence of probiotics and prebiotics on gut microbiota of aquatic animals,and is also conducive to the screening and utilization of intestinal probiotics in aquatic animal hosts.This paper reviewed the recent research progress of gut microbiota on the growth,quality,disease resistance and stress resistance of important economic traits of aquatic animals at home and abroad,and made prospects for the application of gut microbiota in aquaculture to lay a theoretical foundation for the research and practice of gut microbiota in aquaculture in the future.
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