CATDOLL : CATDOLL: California bass water splash breeding technology, how to breed bass water splash seedlings

California bass water splash breeding technology, how to breed bass water splash seedlings

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1. Pond cleaning: Before cultivating fry, use 35-50kg of quicklime per mu of pond for disinfection, then turn on the aerator to stir the pond water for 7 days. 2. Stocking: Stock 200,000 to 300,000 fish per mu of pond, and control the water depth at 1-1.2m. 3. Feeding: 4-20 days after stocking, mainly feed medium and large copepods and cladocerans, supplemented by frozen artemia and bloodworm slurry. 20-28 days after stocking, mainly feed fresh slurry and crushed materials, supplemented by bloodworms.

1. California bass water splash breeding technology

1. Pond cleaning

(1) Before cultivating California bass in water, fill the pond with 1m deep new water and use 15-25kg of tea bran per acre to kill the miscellaneous fish and fish eggs. Then use 35-50kg of quicklime per acre.

(2) Turn on the aerator to stir the pond water to dissipate the foam released by the tea bran. This process lasts about 7 days.

(3) Drain the pond water after treating with tea bran and quicklime, and then replace it with high-quality river water.

(4) Use chlorine dioxide effervescent tablets for disinfection, and then use vitamin C to spray for disinfection the next day.

(5) Carry out water testing and release seedlings if the survival rate is above 95%.

2. Planting seedlings

(1) The water in the transport bag should be kept at the same temperature as the pond water before stocking.

(2) 200,000 to 300,000 water lilies are stocked per acre of pond, and the water depth is controlled at around 1 to 1.2 m.

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

3. Feeding

(1) 1-3 days after being put into the pond, it feeds on small rotifers, copepods and cladoceran larvae.

(2) During the period from bloom to the fifth day of the spring (1.5 cm/tail, 4-20 days after being put into the pond), the fish are mainly fed with medium and large copepods and cladocerans, supplemented with frozen Artemia and bloodworm paste.

(3) During the 5th to 6th day of life (1.5-2 cm/tail, 20-28 days after being put into the pond), the main feed is chilled slurry and crushed feed, supplemented with bloodworms, and fed 5 times a day.

(4) During the 6th to 7th day of the year (2-3 cm/tail, 28-35 days after being put into the pond), the main feed is chilled slurry and crushed feed, supplemented with bloodworms, and fed 4 times a day.

(5) During the 7th to 8th day of the year (3-5 cm/tail, 35-45 days after being put into the pond), the main feed is chilled slurry and crushed feed, which is fed 3 times a day.

(6) During the 3-5 g period (5-7 cm/tail, 45-55 days after being put into the pond), the main feed is chilled slurry and 660A, which are fed twice a day.

(7) During the 5-10g period (7-9cm/tail, 55-65 days after being put into the pond), the main feed is chilled slurry, which is fed twice a day.

(8) When they are about 9 cm in size, they can be cultured in separate ponds as fingerlings.

2. How to breed sea bass water flower seedlings

After the cultivation of sea bass fry is completed in late May, breeding can begin. The key points of indoor breeding are as follows:

1. June: The water temperature is below 25°C, and the daily feeding amount is about 10-15% of the fish body weight. The main feeds are shrimp fry, fish fry, crucian carp and black carp.

2. July: The water temperature is above 26°C, and the daily feeding amount is about 3-5% of the fish body weight, mainly 8-10mm shrimp fry.

3. August: When the water temperature is above 28°C, the daily feeding amount is about 2-3% of the fish body weight; after 15 days, gradually increase to about 5%.

4. September: The water temperature drops below 26°C, and the daily feeding amount is 8-10% of the fish body weight, mainly fresh shrimps and small fish.

5. From October to December, when the water temperature drops below 22°C, the daily feeding amount should be more than 10% of the fish body weight.

6. Under normal circumstances, 50-80 fish fry are released per square meter. If it is a hot season, 30-50 fish fry are released per square meter. The size of the fish fry is about 3cm.

How to raise fish fry and fingerlings

There is a pond. Buy fish fry and put them in the pond.