Method for selecting red tilmpa parent directionally and constructing core group

A red tilapia, directional selection technology, applied in fish farming, application, climate change adaptation, etc., can solve the problem of red tilapia color stability and growth speed are not very significant, parent color instability, etc. problem, to achieve the effect of improving growth rate and body color stability, increasing yield and benefit

Inactive Publication Date: 2016-07-06
广西壮族自治区水产引育种中心
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  • Abstract
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  • Application Information

AI Technical Summary

Problems solved by technology

However, the color system of the adopted parents is not stable, and the selection of the parents is not directi

Method used

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Examples

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Embodiment 1

[0017] A method for directional selection of red tilapia parents and establishment of a core group, specifically comprising the following steps:

[0018] Guangxi Aquatic Breeding Center Wuming Base, Dahuang Village, Wuming District, Nanning City, Guangxi, selected 1,000 fish from 3,000 male Guam red tilapia parents with body color as the main breeding index, and body weight as the auxiliary breeding index. Measure the weight of the fish, and select 300 of the 1,000 as parents; from the 3,000 female Florida red tilapia parents, use body weight as the main breeding index, measure the weight of the fish and select 1,000 fish, with the aid of body color Breeding index, select 300 tails from 1000 tails as parents.

[0019] In order to select the best brood fish, select according to the following criteria. The female fish should be selected with a body weight of more than 600g, a plump body, and mature gonads. Use the index finger and mother finger to lightly press the fish's abdomi...

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Abstract

The invention belongs to the field of aquaculture breeding, and particularly relates to a method for selecting a red tilmpa parent directionally and constructing a core group. The method includes the following steps of source and selection of the parent, intensive culture before parent propagation and selection of the breeding core group. The breeding method directionally selects the parent to construct the breeding core group, so that the body color of a cultured red tilmpa new strain is bright redder, and the growth speed is higher.

Description

technical field [0001] The invention belongs to the field of aquatic breeding, in particular to a method for directional selection of red tilapia parents and establishment of a core population. Background technique [0002] Because of its pure red or bright red body color, the body shape of red tilapia is like red sea bream or Nile tilapia. When the body color has no black spots, there is no black film in the body cavity. Well, it is quite popular with consumers. However, red tilapia has the problem of unstable color. During the growth of fry, a large part of the fish body color gradually appears black spots, or the coverage of red body color area decreases year by year, which is no different from ordinary tilapia. The body color of Guam red tilapia is bright, resistant to transportation, and the commercial fish looks good. The body color does not change during winter, but the growth rate is slower than other strains, and the genetics are unstable; the body color of Florida...

Claims

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Application Information

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IPC IPC(8): A01K61/00
CPCA01K61/00Y02A40/81
Inventor 何金钊陈子桂吕业坚陈诏李华徐鸿飞滕云
Owner 广西壮族自治区水产引育种中心
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