Culture techniques of white crucian carp

White crucian carp, also known as Hanoi crucian carp, big Gu crucian carp, Japanese crucian carp, etc., originated in Biwa Lake, Japan, introduced into China in 1976, its body color silver old name, folk abbreviation crucian carp, tender meat taste, breeding methods are more popular, high reproduction rate, high hatching rate, wide breeding range, can be cultured in ponds, reservoirs, lakes, cages and other places, let's take a look at white crucian carp breeding technology!

extensive culture technique

The extensive culture of white crucian carp is to put proper amount of seedlings according to the pond productivity, without fertilization and bait, and catch commercial fish after 1~3 years. The general pond yield reaches 100~200 kg/ha, and many ponds yield 400~500 kg/ha.

Fertilization and breeding technology

In a water storage tank with no organic fertilizer flowing in, few nutrient elements and high transparency, plankton is promoted to reproduce by fertilization, and white crucian carp is cultured by using plankton as bait. 95 kg ammonium nitrate, 16 kg calcium superphosphate and 118 kg white crucian carp fry are applied per hectare, and the annual yield can reach 500 kg/hectare. If 3.5 tons of dried chicken manure were applied per hectare and 125 kg of white crucian carp seedlings were put in, the annual yield had reached 820 kg/hectare.

Feeding culture technique

190 kg of white crucian carp fry were put into the water storage tank rich in nutrient elements per hectare, and 75 kg of silkworm pupa, 230 kg of wheat bran and 160 kg of rice bran were fed. The yield of white crucian carp reached 1900 kg/hectare, carp 230 kg/hectare, jaw fish and shrimp 80 kg/hectare, and the total yield was 2210 kg/hectare. 60kg white crucian carp fry per hectare were put into the storage pond without organic fertilizer flowing into the nutrient element deficiency, 600kg silkworm pupa and 600kg wheat bran were fed, and the yield of white crucian carp reached 600kg/hectare, carp and jaw fish reached 150kg/hectare, and the total yield was 750kg/hectare.

Fertilization and feeding culture

375kg white crucian carp fry and 50kg carp fry are put into the pond according to each hectare, and then 10 tons of soy sauce meal and 4 tons of silkworm chrysalis are put into the pond, and the yield of white crucian carp can reach 3300kg/hectare and carp 500kg/hectare. In the pond with 310 kg white crucian carp fry and 60 kg carp fry per hectare, 300 kg chicken manure, 600 kg silkworm chrysalis, 4 tons rice bran and 300 kg compound feed, the yield of white crucian carp and carp reached 1900 kg/hectare and 1300 kg/hectare respectively.