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Artificial breeding method for loaches

A technology of artificial breeding and loach, applied in fish farming, application, climate change adaptation, etc., can solve problems such as premature transshipment of loach seedlings, affecting the survival rate of loach larvae, and vicious cycle of germplasm resources, etc., to improve The survival rate of larvae and juveniles, the effect of ensuring good hatching water quality and reducing the cost of breeding

Inactive Publication Date: 2017-04-05
黄郴
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] The object of the present invention is to provide a kind of artificial breeding method for loach, to solve the vicious cycle of germplasm resources existing in the traditional artificial breeding method, the hatching rate caused by lack of debonding treatment is low and the water quality of hatching is easy to deteriorate and affect the survival rate of loach juveniles and loach. Premature transshipment of open seedlings causes problems such as stress death

Method used

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  • Artificial breeding method for loaches

Examples

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Effect test

example 1

[0029] A. Selection and screening of parent loach: select with the naked eye the parent loach with a winter age of 2 years, which is correct in body shape, strong in physique, free from disease and injury, normal in body color, and has a lot of mucus on the body surface, and passes through the stainless steel with a sieve hole of 1.5 cm. The parent loach is screened by the round hole screen, and the smaller individuals are removed and put into the holding pond;

[0030] B. Artificial induction of labor: Put the anesthetic (Ms-222, ethyl m-aminobenzoate methanesulfonate, commonly known as Yu Ding) into the holding pond, the water temperature is 24°C, the dose is 40mg / L, and after the pro-loach is anesthetized, use it again. Oxytocic agent (HCG: chorionic gonadotropin, DOM: dioconone maleate, LRH-A: luteinizing hormone releasing hormone, 0.7% sodium chloride solution of normal saline) carries out injection oxytocin to parent loach;

[0031] C, debonding: the fertilized eggs obta...

example 2

[0036] Select winter age to be the pro-loach of 3 years, the sieve hole diameter of sieve is 1.5cm, temporarily raise pond water temperature 25 ℃, anesthesia consumption is 80mg / L, debonding is carried out under 24 ℃ of water temperature, all the other are with example 1.

example 3

[0038] Select the pro-loach that winter age is 4 years, the sieve hole diameter of sieve is 2cm, temporarily raise pond water temperature 24 ℃, anesthesia consumption is 100mg / L, debonding is carried out under 25 ℃ of water temperature, all the other are with example 1.

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Abstract

The invention discloses an artificial breeding method for loaches. The artificial breeding method is characterized by including the following steps that A, the disease and injury-free loaches with the regular body shape, normal body color, more body surface slime and winter age being 2-4 years are selected, the selected parent loaches are screened through a stainless steel round hole screen with the diameter being 1.5-2cm, and individuals with the small body shape are removed; B, anesthetic is thrown into a storage pond with the water temperature being 20-25 DEG C, and after the parent loaches are anesthetized, the parent loaches are subjected to injection spawning induction with odinagogue; C, fertilized eggs are placed into a debonding device after being fertilized, and debonding is performed on the fertilized eggs in stirring and water flow modes under the actions of the constant temperature of 24-25 DEG C and circulating water; D, after the loaches achieve artificial fertilization and debonding, the fertilized eggs are evenly splashed into a cement pit for still water incubation; E, single-celled algae and rotifers are cultivated in the same cement pit of the step D, so that weaning food is provided for spraying seedlings of the loaches; and F, after the loach seedlings are fed for 10 days in a nursery pond, the loaches can be sold or placed into an earth pond for raising when reaching the inch seedling specification. The method is mainly used for artificial breeding of the loaches.

Description

technical field [0001] The invention relates to an artificial breeding method of loach. Background technique [0002] The current loach breeding methods mainly include natural breeding, semi-artificial breeding and artificial breeding. Natural reproduction refers to natural spawning and fertilization of loach; semi-artificial reproduction refers to artificially induced spawning and natural fertilization; artificial reproduction refers to artificially induced spawning and artificial insemination. [0003] The natural reproduction of loach is affected by environmental factors such as weather and waters. The fertilization rate, hatching rate and survival rate of seedlings are extremely low, and they cannot be mass-produced, which cannot meet the growing demand for seedlings of the loach breeding industry. [0004] The semi-artificial breeding of loach often results in a low fertilization rate due to the small number of male loaches. In addition, loach is intermittently spawnin...

Claims

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Application Information

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IPC IPC(8): A01K61/10
CPCA01K61/00Y02A40/81
Inventor 黄郴
Owner 黄郴
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