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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

Inactive Publication Date: 2016-03-23
NANNING UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

[0003] In most of the culture techniques of yellow catfish, it is mentioned to use pelleted feed to feed the fry of yellow catfish, but the composition of the pellet feed is not specified, and most of the farming techniques are still fed with fresh bait such as water earthworms and surimi For yellow catfish fry, this breeding method will eventually lead to an increase in feed coefficient and a rise in breeding costs, and the fish body absorbs less fresh feed, which will easily cause the problem of increased organic matter load in the culture water body. Some culture techniques use photosynthetic bacteria Probiotics such as probiotics can regulate water quality, but there is also the problem that the effect of using a single type of probiotics to regulate water quality and reduce ammonia nitrogen in water is not obvious

Method used

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Embodiment 1

[0021] A method for cultivating ponds of yellow catfish fry, the method comprising the following steps:

[0022] a. Pond preparation: the preparation area is 2 mu, and the flat pool at the bottom of the pond is used as a breeding pond. A microporous aeration machine is configured for every 0.5 mu of water surface, and an automatic bait feeding machine is equipped for every 2 mu. 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 is 1:2.5;

[0023] b. Pond pretreatment: Drain the water in the pond 30 days before the seedlings, remove weeds and excess silt, add water to the depth of 8cm after the bottom of the pond is dry and cracked, and then evenly sprinkle the lime water obtained after adding quicklime and water to the pond. In the pond, the amount of lime water is 90kg / mu. The bottom mud is stirred the next day to fully mix the bottom mud and lim...

Embodiment 2

[0029] A method for cultivating ponds of yellow catfish fry, the method comprising the following steps:

[0030] a. Pond preparation: the preparation area is 3 mu, and the flat pool at the bottom of the pond is used as a breeding pond. Every 0.5 mu of water surface is equipped with a microporous aerator, and every 2 mu is equipped with an automatic bait feeding machine. 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 is 5mg / L, and the slope ratio of the pond is 1:2.75;

[0031] b. Pond pretreatment: Drain the water in the pond 30 days before the seedlings, remove weeds and excess silt, add water to the depth of 8cm after the bottom of the pond is dry and cracked, and then evenly sprinkle the lime water obtained after adding quicklime and water to the pond. 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...

Embodiment 3

[0037] A method for cultivating ponds of yellow catfish fry, the method comprising the following steps:

[0038] a. Pond preparation: the preparation area is 4 mu, and the flat pool at the bottom of the pond is used as a breeding pond. Every 0.5 mu of water surface is equipped with a microporous aerator, and every 2 mu is equipped with an automatic bait 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 is 6mg / L, and the slope ratio of the pond is 1:3;

[0039] b. Pond pretreatment: Drain the water in the pond 30 days before the seedlings, remove weeds and excess silt, add water to the depth of 8cm after the bottom of the pond is dry and cracked in the sun, and then evenly sprinkle the lime water obtained after melting quicklime with water on the pond. In the pond, the amount of lime water is 120kg / mu. Stir the bottom mud the next day to fully mix the bottom mud and lime...

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Abstract

The present invention discloses a method for breeding Pelteobagrus fulvidraco fry in a pond. The method comprises the following steps: pood preparation, pood pretreatment, water fertilizing, fry placing, fry feeding management, and water quality control. According to the method disclosed by the present invention, Pelteobagrus fulvidraco powder feed prepared by mixing eel feed with Leiocassis longirostris Gunther feed are used to feed the Pelteobagrus fulvidraco fry, and the growing speed and survival rate of the fry are effectively improved; the feed coefficient is reduced; potassium hydrogen sulfate mixing powder is used to improve the pood bottom substratum; meanwhile the culture density is improved, probiotic bacteria fermented by mixing lactic acid bacteria, bifidobacterium, bacillus subtilis and the like are used to adjust water quality and to lower the ammonia nitrogen concentration in the water body, so that the ecological environment suitable for growth of the Pelteobagrus fulvidraco fry is created, and the survival rate of bred fry is improved. According to the method, reasonable light-adjusting, air charging, temperature control, water-adjusting, and feeding are adopted, so that healthy Pelteobagrus fulvidraco fry can be provided, and the method is an optimal Pelteobagrus fulvidraco fry breeding method.

Description

technical field [0001] The invention relates to the technical field of aquaculture, in particular to a method for cultivating peltridge fry in ponds. Background technique [0002] Yellow catfish, with blue-yellow body, mostly with irregular brown markings, likes to live in still water or in the slow flow of rivers. Because the yellow catfish is tender and delicious, it has high nutritional value and economic value, so a large number of artificial breeding Technologies followed. [0003] In most of the culture techniques of yellow catfish, it is mentioned to use pelleted feed to feed the fry of yellow catfish, but the composition of the pellet feed is not specified, and most of the farming techniques are still fed with fresh bait such as water earthworms and surimi For yellow catfish fry, this breeding method will eventually lead to an increase in feed coefficient and a rise in breeding costs, and the fish body absorbs less fresh feed, which will easily cause the problem of ...

Claims

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Application Information

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IPC IPC(8): A01K61/00A23K50/80A23K10/22C02F3/34
CPCY02A40/81Y02A40/818A01K61/00C02F3/34
Inventor 陈涛
Owner NANNING UNIV
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