Pond farming
The semi-smooth tongue lick has the characteristics of good traits, strong adaptability, fast growth, strong resistance, etc., and has a delicious meat flavor, high meat yield, smooth mouthfeel, rich nutrition, long-cooked fish and no aging, no smell and odor, and economy. The value is high and the farming prospects are broad. The technology is introduced as follows. First, pond conditions New digging ponds or abandoned shrimp ponds can be transformed. The water depth is between 1 m and 1.5 m. The bottom sediment is the best sand bottom, which is conducive to its submerged sand life, followed by sand mud bottom and rock bottom. The requirement of sand mud bottom is not the sediment of sludge rot. Otherwise, harmful substances such as hydrogen sulfide and ammonia nitrogen will be generated at the bottom of the pool. When the concentration is too large, it will cause damage to the fish body. Second, the fish stocking 1. Seed selection: requirements normal body color, health, no damage, no disease, no deformity, good food, Fudi, strong ability to adhere to the wall. 2. Seed specifications: Choose 8 cm or better. 3. Stocking time: 15 degrees above the water temperature seedlings better. 4. Stocking density: According to the length of the fish body, generally 400 to 150/m2 for 8 cm to 10 cm; 100 to 60/m2 for 15 to 20 cm; 35 to 25 cm to 30 cm ~20/m2; 18 to 10/35m from 35cm to 45cm. Third, to develop management 1. Water quality: pool water should be fresh, less suspended matter. The water should be frequently changed, and the amount of water to be changed should be increased or decreased according to water quality, water temperature, and fish length. Sprinkle quicklime (100 to 15010-6) or bleach (1.010-6) regularly to disinfect the pond to maintain good water quality. With a transparency of about 50 cm, the transparency is adjusted by raising or lowering the water level. Regularly measure water temperature, dissolved oxygen, salinity, pH, etc., and make detailed records. 2. Feeding: As the slow-moving tongue feeds slowly and feeds for a long time, the pellet feed is mainly used in the breeding process to feed the feed fish. After the fish enters the pond, the feeding is started 2 days to 3 days. The amount of feeding should be determined according to the feeding conditions, weather, and water quality. Generally, the feeding amount is 2 to 3 times a day, and the daily feeding amount is 2% to 3% of the fish's body weight. %. 3. Day-to-day management: Every morning and evening, you should inspect the pond, observe the fish's activities, water quality, color, etc.; when feeding, observe the fish feeding condition; observe the residual bait 2 hours after feeding, so as to adjust the feeding amount in time. Fourth, disease prevention and control Because the semi-slip tongue licking in the bottom of the pond hidden sand, not easy to observe, the health of the fish can not be timely understanding, so adhere to the "prevention, prevention and control combined" principle. 1. Pay attention to changes in water quality, change water in a timely manner, and keep the water fresh and stable. 2. Regularly disinfect ponds with quicklime, bleach or copper sulphate. 3. Improve the quality of food and enrich the nutrient content of the food. (Author: Sui Hailing)
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