Limanda aspera parent fish rearing and hatching method

A technology for broodstock breeding and breeding ponds, which can be used in fish farming, climate change adaptation, application, etc., and can solve problems such as high prices

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

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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 parent fish rearing and hatching method
  • Limanda aspera parent fish rearing and hatching method

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Embodiment 1

[0034] The offshore area of ​​Penglai is an important production area of ​​yellow-gail flounder, and there are abundant germplasm resources. We catch wild fish nearby, and then through measures such as selection and intensive cultivation, we finally cultivate them into fine-bred parents. Another technical route is to screen from artificially bred offspring. Our many years of practice have proved that catching wild fish to breed adult fish is the most effective way. On the one hand, there are abundant wild fish off the coast of Penglai, and on the other hand, it can better preserve the original germplasm characteristics of yellow-gai flounder.

[0035] 1. Collection of broodstock: When fishing and transporting broodstock in natural waters, the body surface should be strictly prevented from being injured. Nets with soft texture (nylon thread) and small mesh (less than 5cm) should be used for fishing. Accurate and skillful, the movement should be light, and the inner wall of the...

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Abstract

The invention relates to a limanda aspera parent fish rearing and hatching method and belongs to the technical field of limanda aspera parent fish rearing and hatching methods. The limanda aspera artificial breeding and seedling raising method is characterized by mainly comprising the following steps: step1, parent fish source; step 2, parent fish rearing; step 3, artificial insemination; and step 4, fertilized ovum hatching. The limanda aspera parent fish rearing and hatching 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 and hatching yellow-gai flounder broodstock, and belongs to the technical field of breeding and hatching methods for yellow-gai flounder broodstock. 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 ...

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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