1, pond cleaning: Before breeding fry, disinfect each acre of pond with 35-50kg of quicklime, and then start the aerator to stir the pond water for 7 days. 2. Sowing: stock 200,000-300,000 fry per mu in the pond, and control the water depth at1-1.2m. 3. Feeding: 4-20 days after entering the pond, mainly medium and large copepods and cladocera, supplemented by frozen harvested worms and red worms, and 20-28 days after entering the pond, use chilled pulp.

First, California bass splash culture technology

1, qingtang

(1) Before cultivating California bass splash, inject fresh water with a depth of 1m, and use 15-25kg of tea bran per mu of pond to kill miscellaneous fish and fish eggs. Then use 35-50 kilograms of quicklime per mu of pond.

(2) Open the water in the agitator tank to disperse the foam released by the tea bran, and the process lasts for about 7 days.

(3) Drain the pond water treated with tea bran and quicklime, and then put it into high-quality river water.

(4) Disinfect with chlorine dioxide effervescent tablets, and then disinfect with vitamin C spray the next day.

(5) Test the water, and release the seedlings when the survival rate is over 95%.

Step 2 release seedlings

(1) Before sowing, the water in the transportation bag should be consistent with the water temperature in the pond.

(2) Stocking 200,000-300,000 fish per mu of pond, and controlling the water depth at about1-1.2m. ..

(3) Before throwing the fry, observe the number of microorganisms in the water with a microscope to ensure that there are enough rotifers for the fry to eat.

Step 3: Feed.

(1) feeding on rotifers, copepods and cladocera larvae 1-3 days after arriving in the pond.

(2) During the period from spraying to the 5th generation (1.5cm/ tail, 4-20 days after entering the pond), medium and large copepods and cladocera were the main species, supplemented by frozen worms and red worm pulp.

(3) During the 5th and 6th generations (1.5-2cm/ tail, 20-28 days after entering the pond), chilled pulp and broken materials were mainly fed, supplemented by feeding red worms, which were fed five times a day.

(4) During the 6th to 7th generation (2-3cm/ tail, 28-35 days after entering the pond), chilled pulp and broken materials were mainly fed, supplemented by red worms, and fed four times a day.

(5) During the 7th generation to 8th generation (3-5cm/ tail, 35-45 days after entering the pond), chilled pulp and scraps were mainly fed three times a day.

(6) During the period of 3-5g (5-7cm/ tail, 45-55 days after entering the pond), cold slurry and 660A were mainly fed twice a day.

(7) During the period of 5-10g (7-9cm/ tail, 55-65 days after entering the pond), cold slurry was mainly fed twice a day.

(8) When it is raised to about 9cm, it can be used as fish species cultured in ponds.

Second, how to cultivate perch splash seedlings

In late May, after the work is finished, the cultivation of perch fry can be started. The main points of indoor culture are as follows:

1 and June: the water temperature is below 25℃, and the daily feeding amount is about 10- 15% of the fish weight, mainly feeding shrimp, fish fry and crucian carp fry.

2. July: When the water temperature is above 26℃, the daily feeding amount is about 3-5% of the fish's weight, mainly feeding 8- 10mm freshwater shrimp.

March and August: when the water temperature is above 28℃, the daily feeding amount is about 2-3% of the fish weight; After 15 days, it gradually rose to about 5%.

April and September: The water temperature drops below 26℃, and the daily feeding amount is 8- 10% of the fish weight, mainly feeding fresh shrimp and small fish.

In May 10- 12, the water temperature dropped below 22℃, and the daily feeding amount was greater than 10% of the fish weight.

6. Under normal circumstances, 50-80 fry are stocked per square meter. In case of high temperature season, stock 30-50 fry per square meter, and the fry size is about 3cm.