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Tilapia and scylla serrata polyculture method

A technology for Scylla serrata and tilapia, which is applied in the field of aquaculture, can solve problems such as restricting the development of aquaculture, low survival rate, and many diseases in monoculture of Scylla serrata, so as to improve the bottom environment, reduce the probability of disease, The effect of improving the utilization rate of bait

Inactive Publication Date: 2013-11-20
HAINAN ACADEMY OF OCEAN & FISHERIES SCI
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  • Summary
  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

[0005] Scylla serrata is one of the important species of seawater crab cultured in my country. However, because the production of artificial seedlings of blue crabs cannot meet the needs of breeding, the seedlings for breeding are still mainly from natural seedlings in extremely unstable sea areas. Only seedlings are available. If there are no seedlings, they will be released, and there are too many diseases in monoculture of Scylla serrata, and the survival rate is low. This situation of high input and low output directly restricts the development of its aquaculture industry.

Method used

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  • Tilapia and scylla serrata polyculture method

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Experimental program
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Effect test

Embodiment 1

[0018] 1. In mid-February 2012, a pond with an area of ​​10 mu, a pond depth of 1.8 meters, unobstructed drainage channels, power matching, complete oxygenation facilities, and convenient transportation was selected; the silt in the pond was cleaned, the pond embankment was reinforced to prevent leakage, After sunning the pond and other work, the whole pond is thoroughly disinfected; it is required to spray the bottom, wall, embankment, and all places connected to the pond with drugs.

[0019] 2. In the first ten days of March 2012, dry pond cleaning was carried out with quicklime at a dosage of 100 kg / mu. After 7 days, 25,000 fish of 3cm Gifu tilapia, 400 silver carp of 100 g / tail, and 100 g / tail were put in 300 bighead carp; 2,500 blue crab seedlings with an average shell length of 5 cm were released after mid-April.

[0020] 3. Feeding: feed with full-price compound feed for tilapia, and the daily feeding amount is calculated as 3-5% of the tilapia's body weight. Feeding is...

Embodiment 2

[0024] 1. In the first ten days of March 2012, a pond with an area of ​​8 mu, a pond depth of 1.5 meters, unobstructed drainage channels, power matching, complete oxygenation facilities, and convenient transportation was selected; the silt in the pond was cleaned, the pond embankment was reinforced to prevent leakage, After sunning the pond and other work, the whole pond is thoroughly disinfected; it is required to spray the bottom, wall, embankment, and all places connected to the pond with drugs.

[0025] 2. In late March 2012, dry pond cleaning was carried out with quicklime at a dosage of 130 kg / mu. Eight days later, 18,000 fish of 4cm Gifu tilapia, 240 silver carp of 100 g / tail, and 100 g / tail were put in 300 bighead carp; 2,200 blue crab seedlings with an average shell length of 6cm were released after late April.

[0026] 3. Feeding: feed with full-price compound feed for tilapia, and the daily feeding amount is calculated as 3-5% of the tilapia's body weight. Feeding i...

Embodiment 3

[0030] 1. In mid-March 2012, select a pond with an area of ​​6 mu, a pond depth of 1.9 meters, unobstructed drainage channels, matching power, complete oxygenation facilities, and convenient transportation; clean the silt in the pond, reinforce the pond embankment to prevent leakage, After sunning the pond and other work, the whole pond is thoroughly disinfected; it is required to spray the bottom, wall, embankment, and all places connected to the pond with drugs.

[0031] 2. In the first ten days of April 2012, dry pond cleaning was carried out with quicklime at a dosage of 150 kg / mu. After 10 days, 13,000 fish of 4cm Gifu tilapia, 170 silver carp of 100 g / tail, and 100 g / tail were put in 200 bighead carp; 1,700 blue crab seedlings with an average shell length of 5 cm were released after the first ten days of May.

[0032] 3. Feeding: feed with full-price compound feed for tilapia, and the daily feeding amount is calculated as 3-5% of the tilapia's body weight. Feeding is div...

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Abstract

The invention relates to a tilapia and scylla serrata polyculture method which comprises the steps that a pond with unobstructed intake and drainage channels, matched electric power and complete oxygenation facilities is selected and disinfected thoroughly and wholly; then tilapia fry are put in; scylla serrata are put in after 30 days; tilapia complete formula feed is fed two times per day; water body disinfection is performed by quick lime every other 15-20 days in a culture process; water quality regulation is performed by a biological agent; the scylla serrata are subjected to crab pot catch rotation after cultured for 2-3 months; and the pond is dried, and tilapia is caught after cultured for 6 months. According to the method, a unique feasible technical operation route is adopted; the tilapia and the scylla serrata are collocated reasonably due to the life habit and food habit characteristics; a culture water environment is fully exerted; a bait utilization ratio is increased; a bottom environment is improved effectively; mass breeding of harmful microorganisms is reduced; the incidence is reduced; survival rates are increased obviously compared with monoculture; yield increasing and efficiency increasing are achieved; and the method is an efficient, environment-friendly and healthy culture model.

Description

technical field [0001] The invention belongs to the field of aquaculture, and relates to a method for polyculture of aquatic products, in particular to a method for polyculture of tilapia and serrata serrata. The method has shown remarkable effects in terms of economic benefits and ecological environment protection, and can protect the corresponding ecological environment while promoting the healthy development of the tilapia industry. Background technique [0002] Tilapia farming in my country began in the 1950s. After decades of development, the farming technology has matured, and technical specifications for tilapia farming have been actively formulated. Tilapia has formed a variety of scientific breeding models, including pond culture, cage culture, reservoir culture, industrialized waterway (circular tank, circulating tank) intensive culture, and polyculture with other cultured species. No matter what kind of breeding mode, it can already fully control the technology o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01K61/00
CPCY02A40/81
Inventor 王德强李芳远佟延南李卫东陈永平王小英
Owner HAINAN ACADEMY OF OCEAN & FISHERIES SCI
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