So how to breed artificially? Let's learn about the artificial culture technology of stickleback fish.
Artificial culture technology of knife loach fish
1, pond requirements
Generally speaking, a soil pond is better, the pond area is generally 1 mu -2 mu, the water depth of the pond is more than 1.5 m, the pond foundation is more than 50 cm above the water surface, and there is less silt at the bottom of the pond, so the pond is convenient for irrigation and drainage and the surrounding environment is quiet.
Planting water hyacinth with the water surface of 1/5 in the pond can adjust the water quality and hide the sun for the sea urchin.
Before the fingerlings go into the pond, they should be thoroughly cleaned and disinfected with quicklime, and then stored in water, and the fingerlings can only be put into the pond after the toxicity of the drugs disappears completely.
2. Fish stocking
Generally, in May-June each year, fish with a total length of more than 5 cm are released. It is required that the released fish have the same specifications and be released in sufficient quantities at one time, so that the fish are healthy.
The stocking density is generally 2000 -3000 per mu.
After 8 months-10 months of culture, the average adult fish reaches more than 200 grams, which can be harvested and marketed, and the yield per mu is generally 250 kg -300 kg.
3. Feed
The sea urchin is an omnivorous fish. At present, the cultured sea urchin is mainly fed with chilled fish, and after artificial domestication, it is also fed with artificial compound feed.
However, it should be noted that the quality of chilled fish should be better, and it should not rot and stink, otherwise it will easily lead to bacterial diseases.
4. Daily management
Because of the high breeding density, it is required to add fresh water frequently to prevent the water quality from deteriorating due to a large number of feeds; In thunderstorm weather, it is necessary to patrol the pond in time, check whether the inlet and outlet and escape prevention facilities are intact, so as to prevent the giant spiny dolphin from jumping and escaping and the pool from overflowing; Do a good job in the preservation of feed, ensure that the feed is fresh and does not rot and deteriorate, and at the same time, feed should be "four fixed"; Do a good job in the prevention and control of fish diseases, and sprinkle quicklime water 1 time every 15 -20 days to adjust the water quality. If fish diseases are found, they should be treated in time.
The above is an introduction to the artificial culture technology of stickleback fish. In fact, stickleback culture is similar to other freshwater fish, but the only difference is that it requires extremely high water quality. Therefore, in order to ensure the growth of stickleback, farmers should strengthen water quality management.
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