Method for breeding Pelteobagrus fulvidraco fry in pond
A cultivation method and technology for yellow catfish, which are applied in the field of pond cultivation of yellow catfish fry, can solve the problems of unexplained lump feed, less fish body absorption of fresh feed, increased feed coefficient, etc., so as to improve growth rate and survival. The effect of improving the survival rate of cultivation and reducing the concentration of ammonia nitrogen
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[0020] Example one
[0021] A method for cultivating yellow catfish fry in a pond, the method comprising the following steps:
[0022] a. Pond preparation: prepare a pond with an area of 2 acres and a flat bottom as a breeding pond. Each 0.5 acre water surface is equipped with a microporous aerator, and every 2 acres is equipped with an automatic feeding machine. The water depth of the breeding pond is 1m. , The thickness of the silt is 5cm, the transparency is 28cm, the dissolved oxygen in the water is 4mg / L, and the slope ratio of the pond and ridge is 1:2.5;
[0023] b. Pond pretreatment: 30 days before the seedlings are released, the water in the pond is drained to remove weeds and excess silt. After exposing the bottom of the pond to dryness and cracking, add water to a depth of 8cm, and then evenly sprinkle the lime water obtained after adding water to the quicklime. In the pond, the amount of lime water is 90kg / mu. Stir the bottom mud the next day to fully mix the bottom mu...
Example Embodiment
[0028] Example two
[0029] A method for cultivating yellow catfish fry in a pond, the method comprising the following steps:
[0030] a. Pond preparation: prepare a pond with an area of 3 mu and a flat bottom as a breeding pond. Each 0.5 mu of water surface is equipped with a microporous aerator and an automatic feeder for every 2 mu. The water depth of the breeding pond is 1.25 m, the thickness of the silt is 5-10cm, the transparency is 31.5cm, the dissolved oxygen in the water body is 5mg / L, and the slope ratio of the pond and ridge is 1:2.75;
[0031] b. Pond pretreatment: 30 days before the seedlings are released, the water in the pond is drained to remove weeds and excess silt. After exposing the bottom of the pond to dryness and cracking, add water to a depth of 8cm, and then evenly sprinkle the lime water obtained after adding water to the quicklime. In the pond, the amount of lime water is 105kg / mu. The bottom mud is stirred the next day to fully mix the bottom mud and li...
Example Embodiment
[0036] Example three
[0037] A method for cultivating yellow catfish fry in a pond, the method comprising the following steps:
[0038] a. Pond preparation: prepare a pond with an area of 4 mu and a flat bottom as a breeding pond. Each 0.5 mu of water surface is equipped with a microporous aerator, and every 2 mu is equipped with an automatic feeding machine. The water depth of the breeding pond is 1.5 m, the thickness of the silt is 10cm, the transparency is 35cm, the dissolved oxygen in the water body is 6mg / L, and the slope ratio of the pond and ridge is 1:3;
[0039] b. Pond pretreatment: 30 days before the seedlings are released, the water in the pond is drained to remove weeds and excess silt. After the bottom of the pool is exposed to dryness and cracks, add water to a depth of 8cm, and then evenly splash the lime water obtained after the quicklime is melted with water. In the pond, the amount of lime water is 120kg / mu. The bottom mud is stirred the next day to fully mix t...
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