Screened 5 coaching demonstration farms, promoted reasonable stocking capacity, strengthened breeding and feeding management techniques, and taught the use of crude drugs and probiotics as demonstration sites for future promotion. Screening of compound crude drugs that effectively antagonize aquatic animal pathogens is used as an immune-enhancing functional additive. The use of 2% crude drugs compound and 1% garlic juice mixed feed for 5-7 days can be applied to effectively prevent enteritis at all stages of growth. Detecting the amount of intestinal vibrio, when the vibrio reaches to 105 CFU or more, colon cancer is prone to occur, which can be used as a warning indicator of the occurrence of enteritis. Use probiotics to manage ponds and feed lactic acid bacteria to protect intestinal health, promote growth, and improve survival rates.