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 cause

Method used

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  • Artificial breeding method for loaches

Examples

Experimental program
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Effect test

Example Embodiment

[0028] Example 1

[0029] A. Selection and sieving of pro-loach: Use the naked eye to select the pro-loach that is 2 years old in winter with a correct body shape, a strong physique, no disease, no injury, normal body color, and a lot of mucus on the body surface, and pass through the stainless steel with a mesh of 1.5 cm The round hole screen screens the parent loach, removes the smaller individuals and puts them in the holding tank;

[0030] B. Artificial induction of labor: Put the anesthetic (Ms-222, ethyl m-aminobenzoate methanesulfonate, commonly known as Yu Diane) into the holding tank, the water temperature is 24 ℃, the dosage is 40 mg / L, and then use it again after the pro-loach is anesthetized Oxytocin (HCG: chorionic gonadotropin, DOM: dioxone maleate, LRH-A: luteinizing hormone releasing hormone, 0.7% sodium chloride solution in physiological saline) is injected to induce labor to the mother;

[0031] C. Debonding: Put the fertilized egg obtained in step B into the debon...

Example Embodiment

[0035] Example 2

[0036] Choosing a three-year winter loach with a mesh diameter of 1.5 cm, a holding tank water temperature of 25°C, an anesthetic dosage of 80 mg / L, and debonding at a water temperature of 24°C. The rest is the same as in Example 1.

Example Embodiment

[0037] Example 3

[0038] Choose a four-year winter loach, the mesh diameter of the screen is 2cm, the water temperature of the holding tank is 24°C, the dosage of anesthetic is 100mg / L, and the debonding is performed at the water temperature of 25°C. The rest is the same as in 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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