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Method for breeding high-temperature-resistant Paralichthys olivaceus new varieties

A high-temperature-resistant brown flounder technology is applied in the field of breeding of new high-temperature-resistant brown flounder varieties, which can solve the problems of short breeding cycle, growth, feeding and other physiological and ecological behavior effects, so as to avoid inbreeding and accelerate Breeding progress, effect of clear genetic background

Inactive Publication Date: 2011-08-10
MARINE FISHERIES RES INST OF ZHEJIANG
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Problems solved by technology

The sea area of ​​Zhejiang has also gradually formed a scale, but due to the high water temperature in summer, it can only use the period of suitable water temperature from autumn to spring for phased breeding. The breeding cycle is short. When the water temperature is above 25°C, its physiological and ecological behaviors such as growth and feeding will be affected, stop feeding if the water temperature is higher than 27°C

Method used

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Embodiment Construction

[0006] The implementation of the present invention operates according to the following steps:

[0007] 1. Select 200 large, healthy and disease-free 4-5-year-old wild domesticated flounder as backup parents, and carry out PIT electronic labeling; after labeling, intensive culture is carried out to promote gonad maturation;

[0008] 2. For broodstock with good selective gland maturity and healthy individuals, use artificial insemination to establish 50 full-sib families of flounder, including 20 maternal and half-sib families. Before the identification of the F1 generation of dye markers, separate the breeding of different families, and the breeding environment should be kept consistent;

[0009] 3. Mark the fry of each family with a total length of about 10cm, and distinguish the families by the injection site of the dye and the color of the dye. Take 50 fish from each family and breed them in the same pond until they are 4 months old. ;

[0010] 4. Heat the polyculture tank...

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Abstract

The invention relates to a method for breeding high-temperature-resistant Paralichthys olivaceus new varieties and belongs to the technical field of agricultural mariculture. In the method, Paralichthys olivaceus half sibs family and sibs family with a clear pedigree are established; multi-generation breeding is performed on the Paralichthys olivaceus family at half lethal temperature; inbreeding possibly occurring in the breeding process and tolerance of the Paralichthys olivaceus at different growth stages of juvenile fish and adult fish to the lethal temperature are taken into full consideration; and screening is repeated for two or more times, so that the high-temperature-resistant Paralichthys olivaceus new varieties can be bred effectively, and the problem that the Paralichthys olivaceus in some provinces in south China are difficult to aestivate.

Description

technical field [0001] The invention relates to a breeding method for a new variety of high-temperature-resistant brown flounder, which belongs to the technical field of agricultural marine culture. Background technique [0002] Brown flounder ( Paralichthys olivaceus ), also known as flounder, commonly known as tooth slices, partial mouth, flounder, is a rare marine fish, and one of the important seawater cultured fish, belonging to the flounder, flounder suborder, flounder family, flounder suborder family, flounder. It has the characteristics of fast growth, large individual, strong fecundity, and low migration. It is a suitable variety for offshore cage and pond culture and industrial culture. At present, large-scale artificial seedling breeding and factory farming have been carried out in northern my country since the 1990s, and significant economic benefits have been achieved. The sea area of ​​Zhejiang has also gradually formed a scale, but due to the high water tem...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01K61/00
CPCY02A40/70Y02A40/81
Inventor 楼宝詹炜徐冬冬毛国民辛俭史会来程国宝程丽娜李三磊耿智
Owner MARINE FISHERIES RES INST OF ZHEJIANG
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