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A kind of group breeding method of oval pomfret

A technology of group breeding of pomfret ovata, applied in fish farming, climate change adaptation, animal husbandry, etc., can solve problems such as unstable genetic traits, slow growth, and decline in stress resistance of pomfret ovata, and achieve Ensure genetic diversity, improve quality, and perfect body shape

Active Publication Date: 2021-10-26
HAINAN CHENHAI AQUATIC CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the genetic traits of pomfret ovata are unstable. After several generations of breeding, a variety is prone to slow growth and decreased stress resistance.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] A group breeding method for oval pomfret, comprising the following steps:

[0025] (1) Basic broodstock selection

[0026] The oval pomfret with strong physique, good color and well-developed gonads was selected from the group as breeding broodstock for three consecutive generations of group breeding.

[0027] (2) Establish a family line

[0028] Based on wild pomfret and cultured pomfret in South China Sea waters, 40 wild pomfrets over 2 years old were selected for 1-to-1 self-breeding, and 40 reared pomfrets over 2 years old were selected. 1-to-1 self-breeding, 40 wild pomfrets and cultured pomfrets were freely paired in cages, and divided into three groups to establish the first generation of selective breeding families;

[0029] (3) F1 generation selection breeding family

[0030] The obtained first-generation selected breeding families were cultured in separate ponds, and the morphology, growth status and comparative analysis were carried out, and the oval pomfr...

Embodiment 2

[0036] A group breeding method for oval pomfret, comprising the following steps:

[0037] (1) Basic broodstock selection

[0038] The oval pomfret with strong physique, good color and well-developed gonads was selected from the group as breeding broodstock for three consecutive generations of group breeding.

[0039] (2) Establish a family line

[0040] Based on wild pomfret and cultured pomfret in South China Sea waters, 40 wild pomfrets over 2 years old were selected for 1-to-1 self-breeding, and 40 reared pomfrets over 2 years old were selected. 1-to-1 self-breeding, 40 wild pomfrets and cultured pomfrets were freely paired in cages, and divided into three groups to establish the first generation of selective breeding families;

[0041] (3) F1 generation selection breeding family

[0042] The obtained first-generation selected breeding families were cultured in separate ponds, and the morphology, growth status and comparative analysis were carried out, and the oval pomfr...

Embodiment 3

[0048] A group breeding method for oval pomfret, comprising the following steps:

[0049] (1) Basic broodstock selection

[0050] The oval pomfret with strong physique, good color and well-developed gonads was selected from the group as breeding broodstock for three consecutive generations of group breeding.

[0051] (2) Establish a family line

[0052] Based on wild pomfret and cultured pomfret in South China Sea waters, 40 wild pomfrets over 2 years old were selected for 1-to-1 self-breeding, and 40 reared pomfrets over 2 years old were selected. 1-to-1 self-breeding, 40 wild pomfrets and cultured pomfrets were freely paired in cages, and divided into three groups to establish the first generation of selective breeding families;

[0053] (3) F1 generation selection breeding family

[0054] The obtained first-generation selected breeding families were cultured in separate ponds, and the morphology, growth status and comparative analysis were carried out, and the oval pomfr...

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PUM

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Abstract

The invention provides a group breeding method for oval pomfret, which includes specific steps such as basic broodstock selection, family establishment, F1 generation breeding family, F2 generation breeding, F3 generation breeding, etc.; the breeding method of the present invention does not require manual intervention , no pollution to the natural world, use group selection to expand the gene pool of the parents in the fish; at the same time, strictly control the water body breeding conditions and scientifically prepare bait and feed, give full play to the influence of environmental genes on fish growth, so that the selected genes can be fully expressed , and gradually control and adjust the water temperature and salinity, so that the cultivated pomfret has the characteristics of high temperature resistance and low salinity resistance, so as to select individuals with growth advantages to cultivate varieties with obvious growth advantages Lay the groundwork.

Description

technical field [0001] The invention relates to the technical field of fish breeding, in particular to a group breeding method for oval pomfret. Background technique [0002] Oval pomfret (Trachinotus ovatus) local name golden pomfret, pomfret, red three yellow waxy pomfret, belongs to Perciformes, Trevalidae, Pomfret genus, warm water, generally medium-sized, living in tropical and temperate coastal areas. The meat is white and tender, rich in fat, delicious and sweet. It is a high-grade edible seawater fish. It mainly feeds on small molluscs and small snails. The large individual weighs 5-10kg, and the meat is tender and delicious. It is a valuable edible fish. At present, the genetic traits of pompano ovata are unstable, and after several generations of breeding, a variety is prone to slow growth and decreased stress resistance. Therefore, by establishing families, comparing growth indicators among different families, and selecting individuals with growth advantages, it...

Claims

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Application Information

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IPC IPC(8): A01K61/10A23K10/20A23K10/22A23K20/163A23K50/80
CPCA23K10/20A23K10/22A23K20/163A23K50/80A01K61/10Y02A40/81
Inventor 张国庆吴光灿蔡惠明蔡春有蔡有森黄春仁蔡镇辉蔡四川蔡建顺蔡金泉
Owner HAINAN CHENHAI AQUATIC CO LTD