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Factory artificial seedling method of tilapia

A tilapia and industrialization technology, applied in fish farming, climate change adaptation, application, etc., can solve the problems of insufficient system and comprehensiveness, and achieve the effects of reasonable device design, good economic benefits, and scientific technical methods

Inactive Publication Date: 2010-07-07
MAOMING MAONAN SANGAO FISHERY DEV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The above technologies are targeted to solve some problems in tilapia seed production and breeding, which are not systematic and comprehensive enough.

Method used

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  • Factory artificial seedling method of tilapia
  • Factory artificial seedling method of tilapia

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] According to the above process conditions

[0016] 1. The water treated by the filter temperature control device [a] has a temperature of 29°C, a salinity of 8‰, a pH value of 8.3, and a dissolved oxygen content of 5mg / L. Seedling pool device (c) water supply.

[0017] 2. Take 10 portions of tilapia fertilized eggs of 500ml (6000 pieces) by counting with a measuring cup, and place them in 10 hatching buckets [2]. Larvae slowly enter the receiving pond [3] for sex treatment.

[0018] 3. The larvae are sent to the indoor nursery pond [6] on the third day after hatching. When the seedlings are released, the water temperature difference between the nursery pond [6] and the receiving pond [3] shall not exceed ±1°C, and the salinity difference shall not exceed 3‰. Slowly put it into the pond, feed a small amount of rotifers for the first 3 days after the larvae opened their mouths, and gradually increase the feeding amount of rotifers from the fourth day, and the density in...

Embodiment 2

[0020] According to the above process conditions

[0021] 1. The water treated by the filter temperature control device [a] has a temperature of 25°C, a salinity of 5‰, a pH value of 6.5, and a dissolved oxygen content of 5mg / L. Seedling pool device (c) water supply.

[0022] 2. Take 10 parts of 500ml (6000) tilapia fertilized eggs and place them in 10 hatching barrels [2], and incubate with boiling water for 75 hours. The newly hatched larvae enter the receiving pool [3] for gender treatment.

[0023] 3. The larvae are sent to the indoor nursery pond [6] on the third day after hatching. When releasing the seedlings, the water temperature difference between the nursery pond [6] and the receiving pond [3] shall not exceed ±1°C. Slowly put the fry into the pond. After the larvae open their mouths Feed a small amount of rotifers for the first 3 days, then gradually increase the feeding amount of rotifers to 10-15 / ml, cultivate for 18 days to grow to a total length of 3.0cm-4.0cm...

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Abstract

Disclosed is a factory artificial seedling method of tilapia. A filtering temperature control device (a) processes and controls the temperature, salinity, PH value of water and supplies water for maintaining oxygen content. A hatching device (b) comprises a conical hatching barrel (2) and a collecting tank (3), an open is arranged at the upper part of the hatching barrel (2) and is connected to a receiving tank (4) from a flume. A water supply pipeline is directly inserted into the bottom of the hatching barrel (2) by a valve, micro water current is controlled to impact fertilized eggs to roll and hatch completely. Newly-hatched larva enters into the collecting tank (3) with water flow from the upper open of the hatching barrel (2), after the larva is processed according to genders, the larva is sent into a seedling tank (6) and is cultured 15 to18 days, then the larva can be sold and cultured as seedlings. The flume (5) under the collecting tank (3) and the seedling tank (6) is connected with the filtering temperature control device by a refluxing pipeline, and backwater is processed and reused in circulation. The technical method of the invention is scientific, the design of the device is reasonable, the practicality is strong, the factory production can be realized, the seedlings can be supplied for the large-scale cultivation, and the quality of fish fry cultured by the method is good, the survival rate is high, and the method has the good economic benefit.

Description

technical field [0001] The present invention relates to a fish seedling raising method in aquaculture industry, in particular to an artificial seedling raising method of tilapia factory Background technique [0002] Tilapia belongs to the cichlid family of Perciformes and belongs to tropical fish. There are more than 100 species in total, most of which are native to the African continent and the Middle East. Tilapia has the characteristics of fast growth, wide feeding habits, strong fecundity, less disease, good meat quality, high yield, etc. Currently, the breeding area has reached more than 70 countries and regions. my country began to introduce breeding in the 1960s, and it has become an important There are more than 10 species of fish cultured, including: Oni tilapia, Gifu tilapia, and Gior tilapia. Oni tilapia is the hybrid offspring of Oria tilapia and Nile tilapia, and is currently the main species of tilapia cultured in my country. There is a vast area suitable for ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01K61/00
CPCY02A40/81
Inventor 李瑞伟宋文东王辉李太光刘宗成黄翔鹄陈德寿林海生陶震纪丽丽颜建斌王浩郭先霞胡世伟李世杰秦培文梁华盛黄华明
Owner MAOMING MAONAN SANGAO FISHERY DEV
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