Grass carp farming methods and techniques How to farm grass carp

1, the environment and pond selection

Grass carp are most susceptible to disease, breeding pollution-free grass carp should be specialized breeding bases, and the formation of a certain scale, the base around the source of pollution. The aquaculture base should have sufficient water, good water quality, smooth water intake and drainage, fish ponds are not connected to each other, the transportation of fish is convenient, rich feed resources, good ecological conditions.

2, fish species selection

In order to raise good grass carp, we must use healthy and lively high-quality fish species, self-propagation of fish species should come from qualified nationally recognized raw material farms, fry cultivated by the pollution-free, quality in line with the relevant standards, with varieties of excellent traits, the best conditions with the best self-propagation of self-propagation, such as the introduction of fish species from foreign countries to be introduced by the quarantine qualified only.

3, species disinfection

Fish species should be disinfected before being put into the fish, and can be disinfected by using chlorine dioxide 20-40 mg/liter for every 5-10 minutes, salt 1%-3% for every 5-20 minutes, 8 mg/liter for every 15-30 minutes, and potassium permanganate 10-20 mg/liter for every 15-30 minutes, etc. The stocking ratio should be 80:20. Stocking ratio according to the 80:20 stocking mode to put fish species, that is, the main grass carp accounted for 80%, with 20% of the fish stocking.

4, scientific baiting

Grass carp in natural waters mainly feed on water plants, in the pond pollution-free aquaculture, it is appropriate to use with the scientific proportion of pellet feed, reduce the residual bait on the water quality of the pollution, to fully improve the utilization of bait. The water and dry grasses fed should be tender, fresh and palatable. Cake meal and other types of bait, no mold, no pollution, no toxicity, and by crushing, soaking, cooking and other ways to deal with, made of grass carp easy to take, easy to digest the bait. Feeding bait should adhere to the baiting principle of timing, positioning, quality and quantity, but also by observing the weather, water conditions and the amount of fish eating to determine a reasonable amount of feeding.

5, reasonable feeding fishing medicine

Fishing medicine is used for the prevention and treatment of aquatic animal and plant diseases and pests of the substance, if not used properly, it is very easy to residual in the fish, resulting in substandard quality of the fish, so we must be careful to use. Fishery drugs generally include fungicides, insecticides, water quality improvers, etc. At present, some traditional fishery drugs have been banned, such as chloramphenicol, furazolidone, sodium pentachlorophenate, malachite green, sulphathiazole, tylosin and other 32 kinds of fishery drugs, which can not be used in aquaculture, and special attention should be paid to the selection of fishery drugs.