Synchronous gonad maturing method of female fugu obscurus and male fugu obscurus

A technology of red-finned oriental puffer and puffer obscura, which is applied in fish farming, agricultural fishing, climate change adaptation, etc., can solve problems such as asynchronous gonad development and maturation, injury, parent fish death, etc., to solve the problem of parental gonad development Effects of dyssynchrony, improved quality, and increased induction and fertilization rates

Inactive Publication Date: 2019-02-05
南通龙洋水产有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The red-finned puffer is a seawater fish, reaching sexual maturity in May every year, the hatching period is short, and the water temperature is lower than that of puffer obscurus, while puffer obscurus is an anadromous fish that lays eggs in fresh water , need to go through two processes of salinization and desalination to reach sexual maturity, and the hatching temperature is 4-6 ℃ higher than that of red fin. In the process of artificial breeding, gonad development and maturation are often asynchronous, which affects the speed of artificial reproduction. Only relying on sex hormone drugs to acceler

Method used

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Examples

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Embodiment 1

[0030] A method for synchronous maturation of the gonads of a female puffer puffer and a male puffer puffer, comprising the following steps:

[0031] Step 1: Specifications, water level, and water temperature control of the brooding pool: The specification of the brooding pool is a circular circulating water pool with a diameter of 4.5m and a pool area of ​​60㎡. , the water depth is controlled at 1.0m, and the water temperature in the parent fish pond of puffer puffer obscurus is controlled at 23.5°C, and that of puffer puffer fish broodstock pond is controlled at 19.5°C by means of heating and cooling heat pumps;

[0032] Step 2: Light intensity control: Broodstock are cultivated under low light at room temperature, and the light intensity is controlled at 600 lux for puffer puffer obscurus, and 500 lux for puffer puffer obscurus;

[0033] Step 3: Selection of broodstock: Select 2-year-old, 850 g healthy, healthy, disease-free, and well-developed gonad females and 3-year-old,...

Embodiment 2

[0038] A method for synchronous maturation of the gonads of a female puffer puffer and a male puffer puffer, comprising the following steps:

[0039] Step 1: Specifications, water level, and water temperature control of the brooding pool: The specification of the brooding pool is a circular circulating water pool with a diameter of 4.5m and a pool area of ​​60㎡. , the water depth is controlled at 1.1m, and the water temperature in the broodstock pond of puffer puffer obscurus is controlled at 24°C, and that of pufferfish obscurus is controlled at 20°C in the broodstock pond by means of heating and cooling heat pumps;

[0040] Step 2: Light intensity control: Broodstock are cultivated under low light at room temperature, and the light intensity is controlled at 700 lux for puffer puffer obscurus, and 600 lux for puffer puffer obscurus;

[0041] Step 3: Selection of broodstock: Select 3-year-old, 800g healthy, healthy, disease-free, and well-developed gonad female Fugu obscurus ...

Embodiment 3

[0046] A method for synchronous maturation of the gonads of a female puffer puffer and a male puffer puffer, comprising the following steps:

[0047] Step 1: Specifications, water level, and water temperature control of the brooding pool: The specification of the brooding pool is a circular circulating water pool with a diameter of 4.55m and a pool area of ​​60㎡. , the water depth is controlled at 1.2m, and the water temperature in the broodstock pond of puffer puffer obscurus is controlled at 24.5°C, and that of pufferfish obscurus is controlled at 20.5°C in the broodstock pond by means of heating and cooling heat pumps;

[0048] Step 2: Light intensity control: Broodstock are cultivated under low light at room temperature, and the light intensity is controlled at 800 lux for puffer puffer obscurus and 700 lux for puffer puffer obscurus;

[0049] Step 3: Selection of broodstock: Select 3-year-old, weighing more than 830 g, healthy, healthy, disease-free, and well-developed go...

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Abstract

The invention discloses a synchronous gonad maturing method of female fugu obscurus and male fugu obscurus. According to the method, female fugu obscurus and male fugu obscurus which are large in size, strong in physique and great in gonad development condition are adopted as parents, composite vitamins are added into feed for nutrient reinforcement, and protein feed control is carried according to the sexual maturity; illumination different in intensity is adopted in a breeding process of the parent fishes, gonad development of the two parent fishes is facilitated through water temperature control, water flow stimulation and other approaches, one-time physiologic maturation pre-acceleration control is combined, and the problem that female fugu obscurus and male fugu obscurus are not synchronous in gonad development is solved. The quality of eggs and sperms during crossbreeding of female fugu obscurus and male fugu obscurus is improved, and therefore the spawning induction rate and fertility rate of the parent fishes are increased.

Description

technical field [0001] The invention relates to the technical field of aquaculture, in particular to a method for synchronous maturation of the gonads of female puffer puffer obscura and male puffer puffer obscurus. Background technique [0002] Both red-finned puffer and puffer obscura belong to Fuguformes, Pufferidae, Puffer genus ( Fugu ). The red fin puffer mainly inhabits the warm seawater environment at the bottom of the sea. It is mainly distributed in the Northwest Pacific Ocean, from the coasts of Japan, South Korea and Russia to the East China Sea. Taiwan of my country is distributed in the back, northeast and east waters. It lays eggs in the Haizhou Bay area from March to May every year, and reaches the peak production period in early May. The time is very short, and the hatching water temperature is 17-18 ℃. [0003] Puffer obscurus is a warm-temperate bottom-migration fish in coastal waters, and it is only distributed in China and North Korea. China is produc...

Claims

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Application Information

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IPC IPC(8): A01K61/10
CPCA01K61/10Y02P60/60Y02A40/81
Inventor 钱晓明金加余朱浩拥秦巍仑王巧利
Owner 南通龙洋水产有限公司
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