Do you know the culture technology of mandarin fish?

Pond polyculture (different from the above-mentioned special pond culture), that is, a small number of smaller mandarin fish are kept in the fish pond at home. Ordinary fish ponds often breed wheat ear fish, goby fish, pomfret fish and small crucian carp. Raising mandarin fish can well eliminate these game markets. The market price is 35~40 yuan/kg, and the highest price can be sold to 50 yuan/kg. The high price has a lot to do with the huge market demand of mandarin fish. The daily demand of mandarin fish in China is several million tons per year, and the total annual demand exceeds 654.38+000 billion tons.

It will probably take more than two months. If the breeding density is 50 grams, you can raise 50 per square meter, and the third-level breeding is from about half a catty to about 500 grams. Generally, you can raise about 40 per square meter. It needs to be raised for three or four months. Before stocking, the fish pond should be thoroughly cleaned, and the excessive silt in the fish pond should be cleaned to completely kill pathogenic bacteria. Use more than three bags of bleaching powder per mu of fish pond, and use 50 kilograms of tea bran per mu of fish pond the next day. He asked for fresh water to clean the pond and fertilize it.

It is best to have a slight flow. So now some areas in the south adopt the "artificial trough domestication method". I don't know much about this method. Anyway, that's what everyone said when they discussed aquatic products together. Cut off a section of water surface with a net in a suitable section of the river ditch from small to small; A certain number of summer mandarin fish can not only make use of the wild fish in the river ditch, but also obtain mandarin fish with high economic value. Generally, 3000 ~ 5000 mandarin fish are stocked per hectare. In the Yangtze River basin, the spawning period is usually from May to July.

Sexual maturity is early, sexual maturity is 2 years old, and the smallest individual with sexual maturity is 2 10 mm, weighing 250 grams. It is a batch spawning fish, which can spawn many times in its life. The spawning period is from May to August, and a few can be extended to August. Because of the delicious meat and good economic benefits, many farmers are interested in mandarin fish now. So today, let's take a look at what technical points should be paid attention to in the process of mandarin fish culture.