2. Before breeding, the pond can be cleaned and disinfected with quicklime, and organic fertilizer should be applied in the pond before stocking.
3. Seedlings can be released after a week of disinfection in the pond, usually when the water temperature is about10 C, and the fry are soaked in 3%-4% salt water for 5-8 minutes in Lower tang qian.
First, the technology and method of turtle culture
1, Ding Gui fish culture pond is generally 2-3 mu, the water depth is about 1.5 m, the water storage is about 1.2 m, and there should be some aquatic plants in the shallow water around the pond. Breeding ponds should be convenient for water injection and drainage, fresh water quality, no pollution and convenient transportation.
2. Disinfect the pond before breeding. You can use quicklime to clean the pond according to 75 kilograms per mu. Apply organic fertilizer in the pond before stocking, so as to ensure that there are enough plankton as open bait.
3. After a week of disinfection in the pond, the fry can be released, usually at the water temperature of10 C. The fry of Dinggui are soaked in 3%-4% salt water for 5-8 minutes in Lower tang qian. The stocking density is generally 2-3 cm in length and 2,500-5,000 tails per mu.
4. Compound feed containing 28%-32% crude protein can be fed to the dinggui fish. During the feeding period, topdressing can be applied regularly according to the water quality and color. The topdressing can be combined with organic fertilizer and inorganic fertilizer, which can cultivate enough plankton.
5. Pay attention to adjusting the water quality and adding new water in time during the breeding process. It is not suitable to mix carp, grass, bighead carp and other fish with fierce food competition when the main fish is raised, and silver carp can be mixed in moderation.
Second, the characteristics of Ding Gui fish
1, Ding Gui fish generally refers to Ding Gui, and its body surface has four colors: green, yellow, blue and white. At the same time, it has the characteristics of tender meat, delicious taste and high nutritional value.
2. Ding Gui fish is a kind of freshwater and benthic fish with wide temperature. Generally, it is common in calm waters with rich plants based on clay and mud, but it is rare in stony and clear waters, so it can't be found in fast-flowing streams.
3. Ding Gui fish is resistant to low dissolved oxygen, and can tolerate water with low oxygen content or even waters where carp can't live. Generally, it can survive in water of 0 C-40 C. The suitable water temperature for growth is 20 C-28 C, and the suitable PH value is 7- 10.