Efficient construction method for half-sib family of micropterus salmoides

A construction method, half-sib technology, applied in the field of high-efficiency construction of half-sib families in California perch, can solve the problems of heritability of breeding traits and accuracy of breeding values, lack of half-sib families, etc., so as to improve selection and replacement efficiency and build success The effect of high yield and speed up the breeding process

Pending Publication Date: 2022-04-22
FOSHAN NANHAI BAIRONG AQUATIC SEED +2
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Problems solved by technology

In addition, the California perch males have the habit of protecting eggs after spawning. The reported method of constructing a California perch family is to pair the developed male and female fish 1:1 to construct a full-sib family. The accuracy of genetic parameter estimation such as heritability and breeding value is affected to a certain extent

Method used

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  • Efficient construction method for half-sib family of micropterus salmoides
  • Efficient construction method for half-sib family of micropterus salmoides

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Embodiment 1

[0040] In 2019, the half-sib family of California perch was constructed for the first time (time: 2019.4.8~4.15)

[0041] 1. Prenatal breeding of California perch parents

[0042] In the early stage of breeding, feed the special California perch parent feed and chilled (1:1), feed 1-2 times a day, and maintain the feeding rate at 1.5%. Regularly mix appropriate vitamins and lactic acid bacteria in the feed to ensure good breeding Water quality, the concentration of dissolved oxygen in the water should not be lower than 5mg / L.

[0043] 2. Spawning pond preparation

[0044] Spawning ponds use two specifications, namely several large spawning ponds with length 200cm×width 200cm×depth 100cm and several small ponds with length 100cm×width 100cm×depth 60cm. 1 stone. Lay 1 to 2 pieces of specially made spawning fish nests (brown pieces in this embodiment) at diagonal positions, the size is about 30cm×25cm, keep the water quality fresh, keep the water depth about 50cm, and cover th...

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Abstract

The invention relates to the technical field of micropterus salmoides breeding, in particular to a micropterus salmoides half-sib family efficient construction method which is beneficial for accurately estimating genetic parameters such as heritability and breeding values of breeding characters, improving breeding efficiency and accelerating the breeding process. In the construction process, by optimizing links, additionally arranging a predelivery pool, preferably selecting parents in advance and the like, the selection and replacement efficiency of the parents is improved, and the operation stress is reduced; in addition, normal feeding is kept in the family construction period, so that the body vitality of the micropterus salmoides is maintained; the female fish is updated in time, so that the male fish can participate in matching breeding for multiple times to construct the paternal line half-sib family, the construction success rate is high, and the loss of postpartum parents is small. The method can be popularized and applied in a large area, and has good social and economic benefits.

Description

technical field [0001] The application relates to the field of California perch breeding technology, in particular to a method for efficiently constructing a California perch half-sib family. Background technique [0002] California perch (Micropterus salmoides), also known as largemouth bass, was introduced to Taiwan from the United States in the 1970s and Guangdong from Taiwan in the 1980s. Because of its fast growth and delicious meat, it has become an important freshwater cultured fish species in China. In 2019, my country's total aquaculture output is close to 500,000 tons. With economic development, industrial changes, and consumption upgrades, the aquaculture area and aquaculture output of California sea bass are steadily increasing, and it is called the "fifth domestic fish" by the industry. [0003] After more than 20 years of breeding, because it is an imported species, the provenance base population is limited, the lack of systematic breeding, and the operating pr...

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 陈柏湘陈科洁张美东尹建雄麦桂港
Owner FOSHAN NANHAI BAIRONG AQUATIC SEED
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