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Limanda aspera offspring seed cultivating and breeding method

A breeding method and technology for yellow-capped flounder, which can be applied in fish farming, application, climate change adaptation, etc., and can solve problems such as high price

Inactive Publication Date: 2013-05-08
烟台宗哲海洋科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The fish is delicious, and it is listed around the Spring Festival, monopolizing the seafood fish market, and the price is expensive

Method used

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  • Limanda aspera offspring seed cultivating and breeding method

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Embodiment 1

[0028] 1. Source of broodstock

[0029] Select healthy and sexually mature yellow-gai flounder as broodstock, and put them into broodstock breeding ponds for intensive cultivation according to the ratio of male and female numbers ♀:♂=(50-80):1;

[0030] The healthy and sexually mature yellow-covered flounder refers to domesticated and bred flounder with a female fish over 3 years old, a male fish over 2 years old, and a body weight of 1.5kg to 2.5kg. Yellow cover flounder without injury or deformity;

[0031] 2. Breeding of broodstock

[0032] Use natural seawater to cultivate broodstock in open circulating water. The daily exchange volume of running water is 4-6 full volume, the water depth is more than 1m, and the breeding density of broodstock is 3-5 fish / m 2 ;Light intensity 500-800lux, water temperature 10-20℃, salinity 29-32‰, pH value 7.6-8.6, dissolved oxygen greater than 5mg / L, ammonia nitrogen less than 0.2mg / L, total number of bacteria less than 5 / mL, oil less tha...

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Abstract

The invention relates to a limanda aspera offspring seed cultivating method and belongs to the technical field of limanda aspera offspring seed cultivating methods. The limanda aspera artificial breeding and seedling raising method is characterized by mainly comprising the following steps: step 1, fish fries are distributed in a pond; step 2, the fish fries are cultivated; and step 3, adult fish is cultivated. The limanda aspera offspring seed cultivating method has the advantages that by means of limanda aspera parent fish cultivating and egg-picking technology research, biology, ecology and physiology characteristics of limanda aspera offspring seed development can be mastered, and photo and temperature technical conditions for mature promotion of parent fish and effective accumulative temperature for egg laying can be found out; by researching the aspects such as water temperature, salinity, growth speed, fish bait utilization and conversion, offspring seed whitening rate reduction and disease control which are related to industrialized seedling production technique and process of limanda asperas, technological processes and operation regulations of limanda aspera offspring seed cultivating can be worked out; and limanda aspera cultivating operation regulations are worked out by researching growth rhythm and technical indexes such as released density, growth speed, fish bait feeding amount and water changing amount of limanda asperas in different periods under the condition of industrialized cultivating.

Description

[0001] technical field [0002] The invention relates to a method for cultivating yellow-covered plaice seed, and belongs to the technical field of cultivating methods for yellow-covered plaice seed. Background technique [0003] The yellow-gai plaice Pseudopleurnectes yokohamae is also known locally as Huanggai, Shaban, Xiaozui, and Shagai. It belongs to the order of flounder, flounder family, and the genus of flounder. It is mainly distributed in the coastal waters of the western Pacific Ocean. It is produced along the coasts of China, North Korea, and Japan. It is produced in the Yellow Sea and Bohai Sea in China. It has a small migration range and strong adaptability. Its suitable temperature range is 2-26°C, and the most suitable growth temperature is 12-24°C. , which can survive the winter naturally, is a kind of euthermic fish, with a large number along the coast of Penglai, Shandong. The fish is delicious, and it goes on the market around the Spring Festival, mon...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01K61/00
CPCY02A40/81
Inventor 孙宗哲季芳赵日祥顾广琛段少鹏张宁
Owner 烟台宗哲海洋科技有限公司
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