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Culture method of Tilapia

A breeding method and tilapia technology, applied in the field of fish breeding, can solve the problems of many diseases, low survival rate and low comprehensive yield per mu, and achieve the effects of high yield, improved survival rate and reduced drug cost.

Inactive Publication Date: 2012-05-23
LIUZHOU YUJIALE FEED
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The problem to be solved by this invention is to provide a tilapia culture method to solve the problems of many diseases, low survival rate and low comprehensive yield per mu in the existing tilapia culture method, thereby providing a tilapia healthy ecological method Breeding method

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] The area of ​​the pond is 6000㎡, the water depth is 2.1 meters, and 3 sets of 3kw impeller aerators and 3 sets of automatic feeding machines are installed. After the pond was drained on October 29, 2008, a total of 1350kg of quicklime with a concentration of 150kg / 667㎡ was used to spray and disinfect the pond; on November 10, the pond was filled with water. On November 26, 1,080 grass carp species with an average size of 250 g / tail were placed in the pond (density 120 fish / 667㎡).

[0030] From November 26th to December 25th, and from February 19th to April 20th, 2009, the water temperature in the pond was higher than 15°C, and 1% of the fish body weight was calculated (the bait coefficient was 1.5) every day. The floating grass carp pellet feed with a protein content of 26% was artificially fed once a day at 13:00.

[0031] On April 20, 2009, the water temperature in the pond remained above 18°C ​​for 7 consecutive days, and 13,500 large-scale overwintering tilapia (1,...

Embodiment 2

[0036] The area of ​​the pond is 6333.5㎡, the water depth is 2.2 meters, 3 sets of 3kw impeller aerators and 3 sets of automatic feeding machines are installed. After the pond was drained on October 25, 2008, 1424㎏ quicklime (concentration: 150㎏ / 667㎡) was used to disinfect the whole pond; on November 6, water was injected into the pond at a depth of 2.0 meters, 11 On March 22, 1995 grass carp fingerlings with an average size of 250 g / tail were placed in the pond (density 210 / 667㎡).

[0037] After stocking grass carp species, when the pond water temperature is higher than 15°C, feed 1% of the fish body weight according to the calculation (the bait coefficient is 1.5) every day, and feed the floating grass carp pellet feed with a protein content of 26%, at 13:00 every day Artificial feeding was adopted once.

[0038] On April 18, 2009, the water temperature in the pond remained above 18°C ​​for 7 consecutive days, and 14,250 large-scale overwintering tilapia (1,500 / 667㎡ density...

Embodiment 3

[0043] The area of ​​the pond is 6666.7㎡, the water depth is 2.5 meters, and 4 sets of 3kw impeller aerators and 3 sets of automatic feeding machines are installed. After the pond was drained on October 27, 2008, a total of 1500kg of quicklime with a concentration of 150kg / 667㎡ was used to disinfect the pond; on November 7, water was injected into the pond to a depth of 2 meters. On November 18, 3,000 grass carp fingerlings with an average size of 250 g / tail were placed in the pond (density 300 fish / 667㎡).

[0044] When the pond water temperature is higher than 15°C, feed 1% of the fish body weight according to the calculation (the bait coefficient is 1.5) every day, and feed the floating grass carp pellet feed with a protein content of 26%. At 13:00, artificially feed 1 Second-rate.

[0045] On April 22, 2009, the water temperature in the pond remained above 18°C ​​for 7 consecutive days, and 15,000 large-scale overwintering tilapia (1,500 / 667㎡ density) of 230g / tail were pla...

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Abstract

The invention discloses a culture method of Tilapia. The culture method comprises the following steps of: selecting a pond which is 2 meters deep, and disinfecting the pond with unslaked lime after emptying the pond in late October every year; before late November, putting grass carp fries which are all heavier than 250g and feeding with a floating grass carp granulated feed when the water temperature is higher than 15 DEG C; in the next year, putting overwintering Tilapia fries which are all heavier than 200g when the water temperature of the pond is higher than 18 DEG C steadily, and feeding the Tilapia fries twice every day; in late July, fishing 90% of Tilapias for sale, then putting current Tilapia fries which are all heavier than 200g, feeding with a Tilapia floating feed containing 28% of protein in a feed ratio of 1-3%; and fishing all the fishes for sale in late October. By utilizing the culture method, the survival rates of Tilapia and grass carp are higher than 99% and 98% respectively, the yearly output of the pond is improved by 15%, and the commercial fishes are large and uniform in specification and are good in quality. The culture method is a healthy ecological culture mode mainly for culturing Tilapia.

Description

technical field [0001] The invention relates to the technical field of fish culture, in particular to a healthy ecological culture method involving the polyculture of tilapia and other fish in a pond. Background technique [0002] In recent years, there have been more and more diseases of tilapia mainly raised in ponds, resulting in low survival rate and reduced production. For the disease of Chinese fish, more drugs are fed, which poses a safety hazard to the quality of fish. From 2008 to 2010, during the high temperature season in summer and autumn every year, a large area of ​​cross-provincial tilapia streptococcosis appeared in South China, the main producing area of ​​tilapia in the country. Once the disease occurs, it is difficult to control and dies High rate. How to effectively prevent and reduce the occurrence of diseases through healthy ecological farming methods, and promote the healthy and sustainable development of tilapia farming is particularly important. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01K61/00A23K1/18
CPCY02A40/81
Inventor 杨军罗永巨杨弘黄肖六
Owner LIUZHOU YUJIALE FEED
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