Several issues for attention to the high yield of fish farming
2020-03-17 14:13:14
First, choose the main fish. To select the main fish culture for ponds, if the pond water is relatively clear and adequate feed is available, grass carp, sea bream and tilapia may be used as the main choice; any green concentrated fish or fish farmers may have cheap organic fertilizer. Select é²¢-based. In general, the food chain of grass carp, clam and tilapia is short. As long as there is sufficient feed, good water quality, and proper management, the expected output and product specifications can be achieved, and the fish is of good quality, high price, good sales, and good economic returns.
Second, pay attention to the specifications of fish species. In order to catch the fall (or winter) in spring, the size of grass carp, clam and carp should not be less than 15 cm. If stocking 15-21 cm fish species, they can grow to 0.5-0.75 kg each at the time of catching, which is the best commercial fish size listed. Tilapia should be single-stocked or raised. This kind of fish has a wide variety of foods, good meat taste, fast growth, and low feed consumption. It is a good variety.
Third, pay attention to stocking density. In general, the output per hectare of 0.067 hectares will reach 150-250 kg, and 300-600 fish species will be needed; the output of 0.067 hectares will reach 250-400 kg, and 600-1200 species of fish species will be required; the yield of 0.067 hectares will reach 400-1000 kg. Need to put 1200-2000 fish tails. Appropriate stocking density is also a major factor in improving economic efficiency. If the density is too high, although the output is not low, it is difficult to meet the specifications of the commercial fish, and the price of the fish is low. If the density is too small, it will affect the output, that is, it will affect economic efficiency.
Fourth, do a good job of prevention and control of fish diseases. Disease prevention can generally use clear lime to thoroughly clear the pond. Each 0.067 hectare uses quicklime to make 75-100 kg of lime. The whole milk is made to splash; the fish species are sterilized with 3%-4% saline for 3-5 minutes before stocking. The grass to be fed should be fresh and washed. It is imperative to do a good job in sanitation and disinfection in the food field. It is forbidden to feed rotten and spoiled feed. The principle of disease-free prevention, early disease prevention, and prevention-oriented administration should be implemented to ensure the healthy growth of fish.
Second, pay attention to the specifications of fish species. In order to catch the fall (or winter) in spring, the size of grass carp, clam and carp should not be less than 15 cm. If stocking 15-21 cm fish species, they can grow to 0.5-0.75 kg each at the time of catching, which is the best commercial fish size listed. Tilapia should be single-stocked or raised. This kind of fish has a wide variety of foods, good meat taste, fast growth, and low feed consumption. It is a good variety.
Third, pay attention to stocking density. In general, the output per hectare of 0.067 hectares will reach 150-250 kg, and 300-600 fish species will be needed; the output of 0.067 hectares will reach 250-400 kg, and 600-1200 species of fish species will be required; the yield of 0.067 hectares will reach 400-1000 kg. Need to put 1200-2000 fish tails. Appropriate stocking density is also a major factor in improving economic efficiency. If the density is too high, although the output is not low, it is difficult to meet the specifications of the commercial fish, and the price of the fish is low. If the density is too small, it will affect the output, that is, it will affect economic efficiency.
Fourth, do a good job of prevention and control of fish diseases. Disease prevention can generally use clear lime to thoroughly clear the pond. Each 0.067 hectare uses quicklime to make 75-100 kg of lime. The whole milk is made to splash; the fish species are sterilized with 3%-4% saline for 3-5 minutes before stocking. The grass to be fed should be fresh and washed. It is imperative to do a good job in sanitation and disinfection in the food field. It is forbidden to feed rotten and spoiled feed. The principle of disease-free prevention, early disease prevention, and prevention-oriented administration should be implemented to ensure the healthy growth of fish.
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