Seedling breeding method for dollar spot Scophthalmusmaximus

A technology for the round-spotted star plaice and fry, which is applied in the fields of heating or lighting devices, containers, and fish feeding, can solve the problems of only 18.3% of the survival rate, etc., and achieves the effect of strong practicability and scientific and reasonable technology.

Inactive Publication Date: 2007-03-07
大连天正实业有限公司
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Problems solved by technology

Although the seedlings were successfully

Method used

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Embodiment

[0050]There are 800 broodstock of flounder, which have been domesticated for 4 months.

[0051] 1. Use the following methods to cultivate and promote maturation:

[0052] 1. Water temperature adjustment

[0053] Cooling period: The water temperature for broodstock cultivation should decrease as the natural water temperature (12°C) drops, and the water temperature will reach 6-7°C.

[0054] Constant temperature period: When the natural water temperature is 6-7°C, keep the temperature constant for 7-10 days.

[0055] Heating period: The water temperature is raised by 1°C every week to reach 12°C.

[0056] Constant temperature period: When the water temperature reaches 12°C, cultivate at constant temperature.

[0057] 2. Light adjustment

[0058] Lighting is used; the light intensity is 500LX, and the light time changes with the change of water temperature.

[0059] Sunshine shortening period: starting from the cooling period, shrinking light from 11 hours to 1 hour a week. ...

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Abstract

The invention relates to a method for breeding sole, which comprises: (1) cultivating parents that 1, adjusting water temperature that naturally decreasing 6-7Deg. C, and increasing to 12Deg. C; 2, adjusting light with lamp; 3, adjusting bait that uses shrimp, fish, etc, with vitamin and lecithin; 4, daily management that clearing and exchanging water; 5, using HCG and LHRH to accelerating growth; (2), picking up semen and eggs, and cultivating zygote, while the zygote is obtained by dry semination, and using sinke zygote and semi-sink zygote to cultivate the baby fish; (3), breeding seed that cultivating 3-5cm seeds in small and large pools, while the total survival rate can reach 28.0-30.0%, and the total survival rate at 8-9cm can reach 21%. The invention can improve the survival rate of seeds.

Description

technical field [0001] The invention belongs to the field of fish breeding, and also relates to a fish feeding, container, heating or lighting device. Background technique [0002] Star flounder, which belongs to the order Pleuriformes, Plaiceidae, and genus Star Plaice, is a large flounder fish, but its quantity is very small. Star flounder has high economic value and breeding value, and is an excellent species worth promoting. In my country's aquaculture industry, a lot of research work has been done on the basic research and seedling technology of the artificial seedlings of the star flounder: for example, Chen Siqing et al. Research (Research on the biological characteristics of the disc star "Modern Fisheries Information" 2002, 17 [10] 25 ~ 27). Wang Kaishun et al. observed the embryo and post-embryonic development (Observation on the development of embryo and larvae of the disc star "Chinese Fishery Science" 2003, 10 [6]. 451-456). Zhang Yongzhong and others used sca...

Claims

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Application Information

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IPC IPC(8): A01K67/02A01K67/00A01K61/00A61D19/00A61K35/60A61K35/52
CPCY02A40/81
Inventor 孟雪松于庆春陈超冯剑于德强姜志强
Owner 大连天正实业有限公司
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