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The selection of semi-slip tongue licking farms is very important. It is best to choose a rich source of water, no pollution, good water quality, suitable water temperature, and better use of underground wells with suitable hydrological conditions. Indoor sheds and workers have higher insurance coefficient for farming and aquaculture, and they can also use shrimp ponds and ponds for outdoor breeding, allowing the semi-slip tongue larvae to feed on natural bait directly, and their growth rate is relatively fast. Experiments have shown that 5 species of semi-slip tongue larvae are stocked in shrimp ponds. The average monthly time can grow to 450 grams, which shows that its rapid growth, outdoor breeding, water level requirements 1.5-2 meters, if the stocking density can be artificial feeding. Shrimp ponds are designed around the bottom of the tank to dig around 0.5-1m of roundabout gullies to facilitate the wintering and crossing of the tongue.
Second, build the pool conditions
There is no special requirement for the shape structure of the pool in the industrial breeding of semi-slip tongue licking. Generally, the existing culture cultivars of buds and turbot are completely suitable for the development of semi-slip tongue licks.
Third, feeding
The semi-smooth tongue swims slowly, habitually crouching in the night, and is evenly distributed in the pool. Most fish stick to the bottom of the pool and gather in the water inlet. This puts high requirements on the feeding of semi-slip tongue licks and baits. The bait is not easily dissipated in water and must be sinking. The formula for foods is: 100g (10% for Nereis, 10% for oysters, 20% for sand diamondfish, 10% for mackerel, 50% for powder, 20% for Vc2.5, 1 capsule for Vessel, 5 capsules for cod liver oil, 3 capsules for Heter Vive, yeast extract 2.5 ‰), farmers can use the small bait processing machine to process their own bait based on this recipe. The cost is low and the farmers can get more profits. Of course, when the bait is processed, the size of the bait is smaller than the size of the turbot and must be palatable. Feeding.
IV. Water Quality Management
Pay attention to the determination of water temperature, and maintain the quality of feeding water by adjusting the amount of water exchanged. The daily water exchange rate depends on the stocking density of fish and the water quality of the rearing ponds. The general high temperature period is 6-8 cycles/day, usually 4 cycles/day. Increasing the amount of water changed according to the feeding conditions is beneficial to maintaining water quality.
Fifth, stocking density
The stocking densities of the semi-slip tongues in the pool are determined according to the water quality conditions (dissolved oxygen, etc.) Generally, 5-20 kg/m2 is cultivated in the factory and 0.5-1 nbspkg/m2 in the shrimp pond.
Sixth, the growth rate
The semi-smooth tongue gills grow faster and have an annual growth rate of about 500 g. The two-day-old fish has a growth rate of 200 to 400%, which is very close to the gums.
VII. Disease Prevention
At present, the disease has not been a threat to the development of semi-slip tongue licks. In day-to-day management, close observation of the fish's feeding conditions, swimming, body color, with or without abnormal behavior, timely detection and prevention of disease precursors. Adjust the amount of water in a timely manner, regular thinning seedlings to reduce the stocking density, regular regular medicinal baths and feeding baits, under the conditions, it is recommended to pour the pool once a month, common diseases are: ascites, abdominal disease, rotten Fin tails can be cured with conventional drugs.
Eight, lighting requirements
The semi-smooth tongue tongue likes low light conditions, and it can still be eaten by smelling at night without turning on the light.
First, the choice of farm