How many fry do you put on an acre of silver carp? When do you usually put them?

A: In the stocking mode of silver carp (bighead carp), which is mainly cultivated in lakes and reservoirs, if seeds are released once and caught twice, 0/20 silver carp and 40 silver carp with the size of 0.25kg are stocked in each acre of pond. If it is released once and caught at the end of the year, 100-200 silver carp will be released per mu of pond, with the specification of 0.15-0.3kg/fish. If seeds are released once and fished every other year, 30-80 silver carp will be stocked in each acre of pond with the specification of 0. 1-0. 167kg/ fish.

1. How many fry are put on the surface of an acre of silver carp?

1, the stocking mode of silver carp (bighead carp) mainly based on lake and reservoir culture.

(1) once sow, twice catch.

(1) There are two kinds of fish stocks, one is 0.25 kg/fish, and the other is 0.75 kg/fish. The stocking amount of both kinds of fish stocks is 30 kg/mu, that is, 0.25 kg silver carp 120 fish stocks and 0.75 kg silver carp stocks are stocked in each mu of pond.

② Fishing started in June, and the market specification was about 0.75kg/ tail. I fished until August, and the rest were fished at the end of the year.

(2) Put the seeds once and harvest them at the end of the year.

(1) The stocking specification is 0.15-0.3kg/piece, and each acre of pond is stocked with 30kg, that is, each acre of pond is stocked with 100-200 pieces.

(2) Feeding artificial feed gradually after August, and fishing at the end of the year.

(3) sow once and harvest every other year

(1) The specification of the fish to be stocked is 0.1-0.167kg/fish, and 5-8kg is stocked in one acre of pond, that is, 30-80 silver carp are stocked in one acre of pond.

② Fishing began in June of the following year.

2. Stocking mode of silver carp in small-scale intensive water body.

(1) 0.25 kg/tail of bighead carp, 0.5 kg/tail of bighead carp and 0.75 kg/tail of silver carp, respectively, and 125- 150 kg of fish per mu of pond.

(2) Starting from June, we will catch the big ones and keep the small ones.

2. When are the silver carp fry usually released?

1. If it is in spring, it is usually released in February-March every year. If it is summer, it is usually released in June-July every year.

2. If it is in the Yangtze River valley, fry release is generally completed before the Spring Festival and no later than the end of February. If it is in North China, Northeast China and Northwest China, it is usually released when the water temperature is stable at 5-6℃ after thawing.

3. Stocking silver carp fry is generally carried out in sunny days. If it is cold and snowy, it is not suitable for stocking.

4. Before stocking fry, the fish body must be soaked and disinfected to kill bacteria and parasites on the body surface. During stocking, fry should be put into the pond together with the packaging container. When the water temperature in the container is consistent with the water temperature in the pond, the seal should be opened to allow the fry to swim into the pond by themselves.