Composite short-chain fatty acid targeted antibacterial product for aquatic feed and application method of composite short-chain fatty acid targeted antibacterial product

The invention discloses an aquatic feed composite short-chain fatty acid targeted antibacterial product and an application method thereof, and belongs to the field of aquatic nutrition, the antibacterial product comprises the following components by mass: 18-22% of trihexanoic acid glyceride; 23 to 27% of tricaprylin; 28 to 32% of ethyl caprate; 25 to 27% of a sodium palmitate carrier; the use method of the antibacterial product at different water temperatures is as follows: when the water temperature of a culture environment is 15-18 DEG C, the composite short-chain fatty acid and the chenodeoxycholic acid are combined for use; when the water temperature of the breeding environment exceeds 20 DEG C, the composite short-chain fatty acid and the cholic acid are combined for use; the antibacterial product disclosed by the invention can be combined with bile acid to assist delivery, can act on intestinal cells in a targeting manner, activates defense pathways such as Toll-like receptors and the like, enhances in