Artificial breeding technology of snakehead snakehead

The muscle composition of white mullet is: moisture 77.90, crude ash 1.10, crude protein 20.69, crude fat 0.76. Compared with other precious freshwater fish: the crude protein content is higher than that of largemouth catfish 47, the anal fin rays are 38, the lateral line scales are 63, and the number of gill rakers is pH value is 6.0 ~ 9.0. It likes to gregate, is good at jumping, and is easy to dig into mud. It gains the fastest weight in summer, with a daily weight gain rate of 3%. Pond cultured white mullet can reach sexual maturity in two years, and its gonad development cycle is 2 months to 3 months. Most eggs are in the Ⅳ stage, 3 months to 4 months. The broodstock fish with a body length of 30cm to 35cm can carry about 1.5 eggs, and each gram of eggs is 8. The relationship between body length and weight is 1 to 2 tails with a weight of 2kg to 2.5kg. The male to female ratio is (PG) and chorionic hormone (HCG), PG1 grams per kilogram of body weight, HCG1800～22℃～23℃, it is 26 hours to 36 hours; 24℃～50 cubic meters per hour. The water temperature is controlled at 22℃～27℃. The dissolved oxygen is controlled at 4 mg200 to 400 per square meter. The fish breeding and breeding pond is 25 square meters to 60 square meters, the water depth is 0.5 meters to 0.8 meters, based on 50 fish per square meter ~ ① Improve water quality and keep pool water fresh; ② Reasonable stocking density and select palatable bait; ③ Regularly screen fry to keep the specifications relatively consistent. Pond conditions① Breeding conditions: Both earthen ponds and stone ponds can be cultured, the water depth is 1.5 meters ~ 2.0 meters, the pond depth is 2.0 meters ~ ② Breeding technology: Stocking specifications 10 centimeters or more (3 inches ~ 5 inches ) Keep the specifications as consistent as possible when stocking, and use 16cm to 20cm fingerlings, after 5 months of growth, the survival rate is 80% and the yield per mu can reach