Method of breeding hatchlings by crossbreeding the female sturgeon and the male sturgeon
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A technique for the sturgeon and sturgeon is applied in the field of hybrid seedling breeding of female sturgeon and male sturgeon, which can solve the problems of breeding, promotion restrictions, difficulty in accepting artificial feed, late sexual maturity, and the like, and achieve growth traits. Excellent effect, strong resistance to stress, high hatching rate
Inactive Publication Date: 2017-03-15
HEILONGJIANG RIVER FISHERY RES INST CHINESE ACADEMY OF FISHERIES SCI
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Among them, Sturgeon schneidi is the earliest self-developed local sturgeon culture species in my country. It is welcomed by farmers because of its large size, fast growth and good meat quality. It accounts for more than 15% of my country's aquaculture output. Disadvantages of accepting artificial feed
The Huso dabryus is large in size and has obvious growth advantages under artificial breeding conditions, but its sexual maturity is about 16-20 years later than other sturgeons. These shortcomings of breeding limit their breeding and promotion to a certain extent.
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[0015] The technical solution of the present invention will be further described below, but it is not limited thereto. Any modification or equivalent replacement of the technical solution of the present invention without departing from the spirit and scope of the technical solution of the present invention should be covered by the protection scope of the present invention middle.
[0016] A method for hybrid breeding of sturgeon females and male sturgeons, comprising the following steps:
[0017] 1. Parent selection:
[0018] The female parent was selected from 14-year-old and over 14-year-old Sturgeon's male fish, and the male parent was selected from 8-year-old Sturgeon's male.
[0019] 2. Breeding and reproductive regulation of broodstock:
[0020] Including: 1. Selection of broodstock; 2. Feed, feeding and nutritional enhancement of broodstock; 3. Water temperature reproduction control; 4. Breeding conditions and daily management. The specific contents are as follows:
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Abstract
The invention discloses a huso dauricus female fish and amur sturgeon male fish hybridization fish breeding method and belongs to the technical field of aquaculture. The method includes the steps that firstly, parent selection is conducted, wherein a huso dauricus at age 14+ is selected as a female parent, and an amur sturgeon at age 8+ is selected as a male parent; secondly, parent fish breeding and reproductive regulation are conducted, wherein S1, the parent fishes are selected, S2, feeds of the parent fishes are selected, the parent fishes are fed and nutrient enrichment is performed, S3, water temperature and reproductive regulation is performed, and S4, breeding condition management and daily management are performed; thirdly, artificial fertilization and incubation are conducted, S1, egg stripping and semen collection are performed, S2, artificial fertilization is performed, S3, egg washing is performed, and S4, fertilized ovum incubation is performed; fourthly, larval fish and juvenile fish breeding is conducted. The hybridized sturgeon fry bred through the method are high in fertilization rate and incubation rate, and have the advantages of being excellent in growth trait, and specifically speaking, the hybridized sturgeon fry are quick in growing, wide in adaptability, high in stress resistance and the like, and therefore the method is suitable for breeding of sturgeons in different regions of China.
Description
technical field [0001] The invention belongs to the technical field of aquaculture, and relates to a method for hybrid breeding of sturgeon females and male sturgeons. Background technique [0002] At present, my country has become the world's largest sturgeon breeding country, with an annual output of about 21,000 tons, accounting for 89% of the world's sturgeon farming output. With the rapid development of our country's sturgeon aquaculture industry, problems such as the confusion of hybrid breeding species and the lack of good breeding species have become increasingly prominent, which seriously restricts the healthy development of our country's sturgeon industry. At present, most of the sturgeon cultured species in my country are wild domesticated species, and the cultured species are chaotic in production. Most of them are chaotic hybrids in some small farms, and the breeding performance is low. Except that there is no good species of sturgeon in my country, other major...
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Patent Type & Authority Patents(China)
IPC IPC(8): A01K61/10
CPCY02A40/81
Inventor 张颖孙大江曲秋芝宋聃吴文化王念民
Owner HEILONGJIANG RIVER FISHERY RES INST CHINESE ACADEMY OF FISHERIES SCI