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Breeding method of high-yield Hippocampus erectus families

A technique of striped hippocampus and family line, applied to the field of breeding of high-yield families of striped hippocampus, to achieve the effect of improving the reduction of reproductive ability, speeding up the breeding process, and maintaining the genetic diversity of the population

Inactive Publication Date: 2017-12-08
TIANJIN AGRICULTURE COLLEGE
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Problems solved by technology

Family selection plays a vital role in the breeding of new species of Litopenaeus vannamei, turbot, and tilapia, but there are no studies and reports on the family selection of lined seahorses

Method used

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  • Breeding method of high-yield Hippocampus erectus families
  • Breeding method of high-yield Hippocampus erectus families
  • Breeding method of high-yield Hippocampus erectus families

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Embodiment Construction

[0028] A method for selecting a high-yield line of seahorses with striae, comprising the following steps of selection:

[0029] 1. In the recirculating aquaculture workshop of seawater fish in Tianjin, a 4-month-old lined seahorse strain with strong vitality, no disease, no harm, healthy and strong fish body, and well-developed gonads was introduced from 3 regions in the Americas, southern China and northern China, and raised independently , Sampling for virus PCR detection, the test was negative and the length ratio of the characteristic parts of the fish body was selected, that is, body length: body width is about 5:1, snout length: head length is about 1.5:1, tail length: pouch (male) The length is about 3:1, and there are 12 lined seahorse strains that meet the standard, and each strain has 10 male and female seahorses.

[0030] 2. Analyze the genetic diversity of the introduced strained seahorse strains, determine their genetic relationship, and finally retain 9 distant s...

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Abstract

The invention relates to a breeding method of high-yield Hippocampus erectus families. The method includes the steps of firstly, introducing parent Hippocampus erectus; secondly, screening the parent Hippocampus erectus; thirdly, performing intensive cultivation on the parent Hippocampus erectus; fourthly, building the Hippocampus erectus families; fifthly, performing standard seed cultivation; breeding target Hippocampus erectus families to increase breeding efficiency. The method has the advantages that the families with qualified Hippocampus erectus body feature part lengths are screened through family tests to serve as the basic families of next-generation breeding, and accordingly the high-yield Hippocampus erectus families can be cultivated after 2-4 generations of breeding; the inbreeding situation of the Hippocampus erectus in China is avoided, the phenomena such as fertility lowering, thin and small bodies and high morbidity caused by the quality degradation of the Hippocampus erectus are improved effectively, population genetic diversity is kept, and the breeding process can be accelerated.

Description

Technical field: [0001] The invention relates to the field of aquatic genetics and breeding, in particular to a method for breeding high-yielding lines of seahorses. Background technique: [0002] The lined seahorse (Hippocampus erectus) belongs to the sea dragon family, and is mainly distributed on the American coast. Compared with domestic seahorse breeds, it has the advantages of larger size, faster growth, strong disease resistance and wide temperature adaptability. , has become the main species of seahorse cultured in my country. However, after multiple generations of domestication and inbreeding, domestic linear seahorses have shown phenomena such as reduced reproductive capacity, precocious puberty, smaller body size, slower growth rate, and decreased disease resistance. Through behavioral research, it was found that an important reason for the quality degradation of the striated hippocampus in different situations is the imbalance in the length ratio of the character...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01K61/10
CPCA01K61/10Y02A40/81
Inventor 孙金辉邵蓬张彦董少杰乔秀亭雍朋政谢尚端黄佳欣
Owner TIANJIN AGRICULTURE COLLEGE
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