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Breed conservation, screening and breed production method in tilapia complete set lines as well as between two lines of complete sets

A matching line, tilapia technology, applied in fish farming, application, climate change adaptation, etc., to achieve high breeding efficiency, preventing inbreeding decline, and strong pertinence.

Active Publication Date: 2012-08-15
YELLOW SEA FISHERIES RES INST CHINESE ACAD OF FISHERIES SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, there are no reports on the breeding, screening and seed production of tilapia mating lines based on the BLUP method and two-line mating.

Method used

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  • Breed conservation, screening and breed production method in tilapia complete set lines as well as between two lines of complete sets
  • Breed conservation, screening and breed production method in tilapia complete set lines as well as between two lines of complete sets
  • Breed conservation, screening and breed production method in tilapia complete set lines as well as between two lines of complete sets

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Embodiment 2

[0059] Present embodiment in April, 2011 in Cangzhou Lingang, Hebei Province Zhongjie tilapia fine breed field, utilizes the Nile tilapia produced in 2010 embodiment 1 in the tilapia supporting line conservation, screening and seed production method The reciprocal cross seed production between the two matching lines with the two matching lines of the Israeli red tilapia was carried out, and further multiplication was carried out.

[0060] The screening and seed production method between two lines of tilapia, the specific operation steps are as follows:

[0061] The two matching lines of Nile tilapia and Israeli red tilapia that are screened, preserved and produced in the above-mentioned embodiment 1 reach sexual maturity after the domestication of the fish species described in the above-mentioned steps 2; Select the top 10 families and the top 30 individuals in the breeding value in the female parent matching line, select the top 10 breeding value in the male parent matching l...

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PUM

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Abstract

The invention relates to a breed conservation, screening and breed production method in tilapia complete set lines, comprising the following steps of: construction of complete set line base populations rich in hereditary variation, establishment of operation procedures of family production and management in the complete set lines, marking of individuals in the complete set lines, genetic evaluation analysis of important production traits and establishment of individual mating selection programs in the complete set lines. The invention also provides a hybrid breed production method between twolines of complete sets, which is established by utilizing the method. The method disclosed by the invention has the characteristics of high pertinence, high selection breeding efficiency, capability of effectively preventing parent inbreeding depression of the complete set lines and the like; the harvest weight of the hybrid fine breed of tilapia is averagely increased by more than 30% than that of control groups; and the culture survival rate is also obviously higher than that of the control groups. According to the invention, a new technical approach is developed for cultivation of fish fine breeds; particularly a new selection breeding method is applied in the breed conservation, the screening and the breed production of the complete set lines in fish hybrid breeding; and the method isalso suitable for being popularized and applied in all cultured fishes and has broad popularization and application prospects.

Description

Technical field: [0001] The invention belongs to the field of animal breeding, and in particular relates to seed conservation, screening and seed production methods for mating lines of tilapia and two-line mating rooms. Background technique: [0002] In China, many experiments have been carried out in fish breeding since the 1960s, and there are 112 hybrid combinations of freshwater economic fish. Among them, Xingguo red carp has been selected for 5 generations. Its growth rate is 12.7% faster than that of unselected ones, and its fecundity and disease resistance are strong. It is also an important parent of carp hybrid breeding in my country. After 5 generations of selective breeding, purse red carp has fast growth, wide appetite and strong adaptability, and its muscle fat content is 2.5 times that of wild carp. Pengze crucian carp was bred in the 1980s after 7 years and 6 generations. Its growth rate is 50% faster than before breeding, and 249% faster than ordinary crucia...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01K61/00
CPCY02A40/81
Inventor 张天时李素红张艳红筴金华赵海胜
Owner YELLOW SEA FISHERIES RES INST CHINESE ACAD OF FISHERIES SCI
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