Unlock instant, AI-driven research and patent intelligence for your innovation.

A method for gynogenesis of Nile tilapia and Siniperca sinensis

A technology of Nile tilapia and gynogenesis, applied in fish farming, climate change adaptation, animal husbandry, etc., can solve problems such as increasing difficulty

Active Publication Date: 2021-05-18
PEARL RIVER FISHERY RES INST CHINESE ACAD OF FISHERY SCI
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the operation, it is also necessary to induce labor on the two parents, which increases the difficulty of the operation.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0017] In order to allow those skilled in the art to understand the present invention more clearly and intuitively, the present invention will be further described below.

[0018] A method for gynogenesis of Nile tilapia and squid mandarin fish, comprising the steps of:

[0019] (1) Parental selection: select purebred Nile tilapia females over 1 year old, with a body weight of 0.5-1 kg, full hind abdomen, prominent genital pores, mature gonads, strong physique and good body shape as the female parent; Above 1 year old, with a body weight of 0.5-1 kg, a male mandarin fish with a cocked mouth that has mature gonads, and milky white semen will flow out when the abdomen is lightly pressed, as the male parent.

[0020] (2) Intensive cultivation of the female parent: put the female Nile tilapia selected in step (1) into the indoor recirculating aquaculture system to raise separately, and adjust the water temperature of the recirculating aquaculture system to stabilize at At around ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The present invention proposes a method for gynogenesis of Nile tilapia and Siniperca sinensis. The method uses Nile tilapia as the female parent and Siniperca sinensis as the male parent to carry out gynogenesis. In the process, no It is necessary to inject oxytocic agents into Nile tilapia and Siniperca sinensis, and it is not necessary to inactivate the sperm of mandarin fish, and it is not necessary to double the fertilized eggs. After fertilization, about 10% of the individuals can open their mouths to eat, and the ploidy of about 2 to 3% of them is found to be diploid Nile tilapia through flow cytometry, and the rest are haploid. Because haploids have serious deformities, they will die naturally in the subsequent breeding process, and diploid individuals of Nile tilapia with gynogenesis can be obtained without re-screening diploid individuals.

Description

technical field [0001] The invention relates to the technical field of new fish strain breeding, in particular to a method for gynogenesis of Nile tilapia (♀) and mandarin mandarin fish (♂). Background technique [0002] The Nile tilapia, Oreochromis niloticus (Linnaeus, 1758), belongs to the family Cichlidae of the order Perciformes. It is native to Africa and has been widely introduced from other regions. Because tilapia has a variety of food habits, fast growth, strong disease resistance, and is easy to breed in various farming models, the tilapia aquaculture industry has developed rapidly. At present, it has become the main farmed fish in the world and my country's largest export Freshwater aquaculture species, production and export volume accounted for about 40% and 70% of the global total respectively. Nile tilapia is the largest species of tilapia, and has fewer bone spurs, tender and elastic meat, and delicious taste, and its flavor is comparable to sea bream and flo...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): A01K61/10A01K61/17A23K10/22A23K50/80
CPCA23K10/22A23K50/80A01K61/10A01K61/17Y02A40/81Y02A40/818
Inventor 曹建萌卢迈新李洋
Owner PEARL RIVER FISHERY RES INST CHINESE ACAD OF FISHERY SCI