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A kind of polyculture method of tilapia and loach pond

A technology for tilapia and loach, applied in fish farming, application, climate change adaptation and other directions, can solve problems such as affecting the growth of loach, low oxygen tolerance, etc., and achieve full use of water body aquaculture space, strong feeding ability, and improved feed. The effect of efficiency

Inactive Publication Date: 2016-03-09
福建省淡水水产研究所
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] At present, there is no relevant report on the polyculture of tilapia and loach, but the polyculture of tilapia and loach in ponds needs to solve the following problems: First, the appropriate stocking density and sequence of tilapia and loach
Second, there are differences in feed nutrition requirements between tilapia and loach. The ability of tilapia to grab food is stronger than that of loach, which affects the growth of loach. The problem of feeding methods needs to be solved. Third, the oxygen tolerance of tilapia is lower than that of loach , to solve the problem of pond aeration

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Pond area 4×667m 2 , the average water depth is 2.0m, and the drainage and power supply systems are complete. It is equipped with 2 sets of 1.5kw water wheel aerators and 2 sets of automatic feeding machines. The automatic feeding machines are respectively set in different bait feeding areas of the pond. The water source is mountain stream, the water quality is fresh and pollution-free.

[0026] In mid-March 2012, after the pond was dredged, repaired and reinforced, and exposed to the sun, the pond was 120kg / 667m 2 A certain amount of quicklime is used for dry cleaning pond disinfection. After 7 days, add new water to the pond water level of 1.5m, and prepare for stocking well.

[0027] On March 28, after the pond water temperature stabilized above 20°C, 7,200 new Jifu monomale overwintering species of tilapia with an average size of 21.3g / tail were released, and the male rate was 96%. Put in 80,000 tails of loach seedlings with a size of 3 cm to be polycultured with ...

Embodiment 2

[0031] Select 3 ponds with an area of ​​5×667m 2 , a tilapia culture pond with an average water depth of 2.0m, with a complete water inlet and drainage and power supply system, each pond is equipped with a 3kw impeller aerator and an automatic feeding machine, which are set in the first bait feeding area for Tilapia extruded granule compound feed was fed, and 5 bait feeding platforms were set up in another feeding area of ​​the pond for feeding loach sinking granule compound feed. The water source is reservoir water, the water quality is fresh and pollution-free.

[0032] In mid-March 2013, after the pond was cleaned and sun-exposed, the 2 A certain amount of quicklime was used for dry cleaning pond disinfection. After 10 days, new water was added to the pond water level of 1.5m to prepare for stocking.

[0033]On April 7, after the pond water temperature stabilized above 20°C, 28,800 single-male overwintering species of tilapia with an average size of 20g / tail and a male ra...

Embodiment 3

[0037] Pond area 10×667m 2 , with an average water depth of 2.5m, complete water intake and drainage, and power systems. Three 3kw impeller aerators and two automatic feeding machines are installed, which are set in the same feeding area for feeding tilapia puffed pellet compound feed. The water source is reservoir water, the water quality is fresh and pollution-free.

[0038] In late March 2013, after the pond was dredged and sun-exposed, the 2 Use a certain amount of quicklime to carry out dry cleaning pond disinfection. After 10 days, add new water to the pond water level of 1.5m, and do a good job of preparation before stocking.

[0039] On April 10, after the pond water temperature stabilized above 20°C, 20,000 single-male overwintering species of tilapia with an average size of 25g / tail were released, and the male rate was 98%. 200,000 loach seedlings with an average size of 3.5 cm were mixed with the New Gifu tilapia in the pond.

[0040] On the second day after the ...

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Abstract

The invention relates to a tilapia and loach mixed-pool-breeding method. A tilapia breeding pool is selected and is disinfected through quick lime after water in the pool is drained out in March every year, and after the water temperature is stabilized at 20 DEG C, 1,800 to 2,000 single male tilapia over-wintering fry with the weights ranging from 20 grams to 25 grams are thrown into the pool every 667 square meters, and 20,000 loach fry with the lengths ranging from 3 centimeters to 4 centimeters are thrown into the pool 30 days later. By means of food training, tilapias and loaches are fed in different feeding areas. Special mixed feed is thrown to feed the tilapias and the loaches two times everyday. After being bred for four to five months, the tilapias are caught in advance to be sold, the pool breeding density is decreased, and the growing period of the loaches is prolonged. The technology that the tilapias and the loaches are fed respectively in the same pool is adopted, rational combination is carried out according to the life habits and the feeding habits of the tilapias and the loaches, the aquatic water space is fully utilized, the bred marketable fishes are large in size and good in quality, and the purposes of promoting growth, increasing production and efficiency and improving benefits are achieved.

Description

technical field [0001] The invention belongs to the field of aquaculture, and relates to a polyculture technology of aquatic products, in particular to a method for polyculture of tilapia and loach in ponds. Background technique [0002] Freshwater pond aquaculture is the pillar industry of aquaculture in my country. Both tilapia and loach are the main species of freshwater aquaculture in my country. In 2012, the aquaculture output was 1.55 million tons and 280,000 tons respectively, ranking sixth among the main freshwater fish aquaculture production in my country. and thirteenth place. [0003] At present, tilapia farming in my country is mainly distributed in the five provinces of Guangdong, Guangxi, Hainan, Yunnan and Fujian. The main farming mode is still monoculture in ponds, with some filter-feeding fish, such as silver carp and bighead carp; there are also a small number of Tilapia and blue crab, Litopenaeus vannamei, freshwater pomfret, yellow catfish polyculture in r...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01K61/00
CPCY02A40/81
Inventor 钟全福王茂元樊海平邓志武
Owner 福建省淡水水产研究所
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