1. Utilizing cow dung to support prawns U.S. Hawaii Institute of Oceanography uses bovine manure to raise prawns. Prawns grow well and the survival rate at 11 weeks of age is 88%. During the trial period, no bait was used for the experiment. Only 30 kg of cow dung was placed in the shrimp pond every week. Seawater shrimp ponds that use cow dung can greatly reduce the cost of shrimp culture. 2. Add citric acid to the shrimp material Add 20ppm citric acid to the shrimp bait without changing the basic formula, and the shrimp production rate can be increased by at least 20%, which will greatly reduce food consumption and feeding costs. 3. Cholesterol Feeding Shrimp Synergies Shrimp need sterols for normal growth throughout the young hours, and cholesterol is the only substance that has biological activity on shrimps in various sterols. In order to ensure the normal growth of juvenile shrimp, pure cholesterol should be added to the shrimp bait, and the amount added is about 0.5% of the bait. 4, the use of new additives (1) hormones. The addition of somatotropin extracted from chicks or calves to the feed of herring seedlings results in a doubling of the growth of sturgeon fry. (2) Fat. Adding about 10% of the fat to the fry feed not only increases the growth rate of the fry by 20%, but also greatly reduces the death. 5, vegetable oil ginger cure fish disease according to the average depth of 1 meter, with 750 grams of vegetable oil per acre of water, 250 grams of ginger, the first vegetable oil into the pan burning heat, then the ginger into the pan 20 minutes, then Even the oil is poured into the bucket, and the water is stirred in the whole pool. It is effective for treating grass carp gills and enteritis. 6, ginger dip anti-fish disease spring fish species prone to hydropitch disease, every 50 kg of fingerlings take 250 grams of ginger grated, filtered gauze with gauze, add salt and white wine 0.25 kg, plus the appropriate amount of water Dipping fish species and dipping them into the pool for a period of time can effectively prevent watery mildew. 7. Use of veterinary drugs to treat fish disease Benzoimidazole is a broad-spectrum livestock insecticide. It is fed with feed containing 50 grams of fenbimidazole at a rate of 10 grams and fed for 3 days to treat fish heads. The rickets have special effects, and the dosage is small. The cost is only half that of trichlorfon. 8, chicken manure fermentation after feeding the fresh chicken manure containing a variety of pathogenic bacteria and viruses, used to feed fish can easily lead to infectious diseases. If the chicken manure is concentrated and fermented, the high temperature will kill the bacteria and virus and then feed the fish, so as to avoid the shortcomings and obtain good benefits. 9. The benefits of expanded feed are good. Feeding fish with extruded compound feed reduces labor intensity and reduces waste. In the late autumn and early autumn fish growth season, the feed coefficient is controlled between 1.2 and 1.5, and the cost per kg of feed can be controlled at 8-12 yuan. 10. Less loss of anti-foam pellets A Japanese company develops a new type of feed that is resistant to foam and immersed in water. It will not loosen and deteriorate in water for a month, greatly improving the utilization rate of fish feed. 640 g of fish oil was blended with 5 kg of wheat flour containing cyclodextrin, and 500 g of metal soap and 300 g of polyethyl wax were mixed. The mixture was blended into the pellets at a rate of 12% into pellets to make pellets that were resistant to foam. 11. Light attracting insects feeding fish have a strong phototaxis, at night using light traps to feed fish, artificially enhanced fish feeding activities and metabolic intensity, and accelerate the growth of fish. Insects are rich in protein and a certain amount of fats, carbohydrates and vitamins. When they fall into the water, they are preyed by the fish. The food is fresh, easy to digest and absorb, and it is not easy to get sick. 12, increase the efficiency of rare earths to feed with 50 grams of nitrate for 50 kg of water mixed feed or mix about 400 kg of feed for feeding fish, fed once every 3 to 4 days, breeding efficiency can be increased by 20% to 25%.
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