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A method for artificially inducing labor of oval pomfret

A technology for artificial induction of labor and pomfret, which is applied to the field of artificial induction of oval pomfret, can solve the problems of underdevelopment of gonads of male and female broodstock, reduction of induction rate and fertilization rate, low hatching rate and seedling emergence rate, etc. The effect of increasing the oxytocin rate and reducing the temperature sensitivity of water bodies

Active Publication Date: 2022-04-08
陵水德林诚信水产养殖有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The effect of artificial induction of broodstock is often closely related to fish age, maturity, water temperature, nutritional conditions, oxytocin period, and dose of oxytocin drugs. However, the artificial induction of broodstock of ovate pomfret has great differences in the effect of artificial induction of broodstock, and broodstock induction is affected by seasonality. When the water temperature is high or low, there are often problems such as insufficient gonad development of male and female broodstock, prolonged effect time of broodstock after induction of labor, and decreased induction rate and fertilization rate, resulting in low hatching rate and emergence rate

Method used

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  • A method for artificially inducing labor of oval pomfret

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Embodiment 1-a kind of method for artificial induced labor of oval pompano, is characterized in that, comprises the steps:

[0029] (1) Selection of broodstock

[0030] Select 4-year-old female and male pomfret adult fish artificially cultured as broodstock, and the male-to-female ratio of broodstock is 2:1;

[0031] (2) Oxygenated intensive cultivation

[0032] Put the broodstock in the oxytocin intensive cultivation pond for intensive cultivation for 30 days; the water temperature in the pond is 21°C, and after 7 days in the pond, the water temperature is raised to 28°C at a rate of 0.5°C every 3 days; the pond adopts micro-flow circulation Pool water, the water velocity is 0.5m 3 / s; 6% of the pool water is replaced with composite seawater every 3 days, and the composite seawater is filtered seawater containing a composite algae solution with a concentration of 0.6mg / L and a composite bacterial agent of 0.3mg / L;

[0033] The fortified bait was fed three times a da...

Embodiment 2

[0038] Embodiment 2-a kind of method of egg-shaped pomfret artificial induced labor, comprises the steps:

[0039] (1) Selection of broodstock

[0040] Select 6-year-old female and male pomfret adult fish from artificial breeding as broodstock, and the male-to-female ratio of broodstock is 1:1;

[0041] (2) Oxygenated intensive cultivation

[0042]Put the broodstock into the oxytocin intensive cultivation pool for intensive cultivation for 50 days. The water temperature in the pond is 18°C. After entering the pond for 5 days, the water temperature is raised to 25°C at a rate of 0.3°C every 2 days; Circulating pool water, water velocity is 0.6m 3 / s; 10% of the pool water is replaced with composite seawater every 5 days, and the composite seawater is filtered seawater containing a composite algae solution with a concentration of 1.2mg / L and a composite bacterial agent of 0.7mg / L;

[0043] The compound algae liquid includes Chrysalis liquid, Pyramides liquid and Schizochytriu...

Embodiment 3

[0051] Embodiment 3-a kind of method of egg-shaped pomfret artificial induced labor, comprises the steps:

[0052] (1) Selection of broodstock

[0053] Select 6-year-old female and male pomfret adult fish from artificial breeding as broodstock, and the male-to-female ratio of broodstock is 1:1;

[0054] (2) Oxygenated intensive cultivation

[0055] Put the broodstock into the oxytocin intensive cultivation pool for intensive cultivation for 40 days; the water temperature in the pond is 19°C, and after 6 days in the pond, the water temperature is raised to 26°C at a rate of 0.3°C every 2 days; the pond adopts micro-water flow Circulating pool water, the water velocity is 0.5m 3 / s; 10% of the pool water is replaced with composite seawater every 5 days, and the composite seawater is filtered seawater containing a composite algae solution with a concentration of 0.8mg / L and a composite bacterial agent of 0.4mg / L; the composite algae solution includes quality Chrysoflagellate l...

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Abstract

The invention provides a method for artificially induced spawning of ovate pompano, comprising: (1) selecting broodstock, (2) intensively cultivating the broodstock to induce spawning, increasing the water temperature by 0.3-0.5°C every 2-3 days; 6-10% of the pool water was replaced with compound seawater every day; the enhanced bait was fed 3-4 times a day; the light was extended for 10-15 minutes every two days; (3) oxytocic agent was injected with temperature control for 3 times to artificially induce labor; After the temperature-controlled injection of oxytocic agent for the first time, adjust the water flow rate to 0.8-1.4m3 / s, and extend the photoperiod to 15L / 9D-16L / 8D; (4) Artificial insemination and hatching. In the present invention, the broodstock is induced to be induced by intensive breeding, and three temperature-controlled injections are used to induce the broodstock to induce spawning under different water temperature environments, and the water flow rate and the light cycle are increased after the injection of the oxytocic agent, so as to effectively improve the broodstock induced spawning effect, and The effect time is shortened, and the fertilization rate and hatching rate are high.

Description

technical field [0001] The invention relates to aquaculture technology, in particular to a method for artificially inducing spawning of oval pomfret. Background technique [0002] Oval pomfret, commonly known as golden pomfret, belongs to Perciformes and Pomfretaceae. It is an important edible fish cultured in seawater along the southern coast of my country. Its meat is tender, delicious and has high nutritional value. In recent years, the scale of artificial breeding of ovata pomfret has been continuously expanding in various places. To realize the artificial breeding of ovata pompano, the maturation and spawning of broodstock of ovata pomfret is the key technology. [0003] The effect of artificial induction of broodstock is often closely related to fish age, maturity, water temperature, nutritional conditions, oxytocin period, and dose of oxytocin drugs. However, the artificial induction of broodstock of ovate pomfret has great differences in the effect of artificial indu...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01K61/10A23K10/22A23K10/30A23K10/37A23K50/80
CPCA01K61/10A23K50/80A23K10/30A23K10/37A23K10/22Y02P60/87Y02A40/818Y02A40/81
Inventor 林川刘德林李有文陈泽冻
Owner 陵水德林诚信水产养殖有限公司
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