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Method for shortening cultivation period of Fugu flavidus

A technology of red-fin pufferfish and body weight, which is applied in the field of aquatic biological genetics and breeding, can solve the problems of shortened breeding cycle, long breeding cycle and high breeding cost, and achieves the effects of reducing breeding cost, shortening breeding period and improving breeding efficiency.

Inactive Publication Date: 2008-08-27
河北省水产研究所
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In recent years, the coastal areas of Fujian, Jiangsu, Zhejiang, Hebei and other provinces have begun to artificially breed chrysanthemum yellow puffer. However, due to the long breeding cycle, it takes 3 years to reach the commercial fish size (weight greater than 300g), and the cost of breeding is high and the benefits are high. Low, which limits the further expansion of farming scale
In some places, the method of raising seedlings in advance and increasing the water temperature for overwintering is adopted to shorten the breeding cycle, but the effect is not significant

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Location: Fishery Research Institute of Hebei Province Redfin Puffer Breeding Farm

[0025] This embodiment takes the following steps:

[0026] (1) Select breeding broodstock

[0027] On March 15, 2006, 10 chrysanthemum yellow puffers and 5 red fin puffer males were selected on March 15, 2006;

[0028] (2) Maturity-promoting breeding and spawning of broodstock

[0029] Cultivate the broodstock of the chrysanthemum-yellow puffer and the red-finned puffer in separate ponds, control the water temperature at 18±1°C, change the water 1 / 3-1 / 2 every day, and feed the clamworms once at 8% of the parent fish’s weight, and promote them after 30 days. After ripening and cultivating, on April 15, the body weight of the broodstock was compared according to the injection amount: 100 mg / kg and 50 mg / kg were used to inject luteinizing releasing hormone analogue (LRH-A) to the chrysanthemum yellow puffer and red fin puffer respectively;

[0030] (3) Artificial insemination and incuba...

Embodiment 2

[0041] Location: Haiyong Farm, Changli County, Hebei Province

[0042] This embodiment takes the following steps:

[0043] (1) Select breeding broodstock

[0044] On March 10, 2006, 30 3-4 instar puffers and 15 male puffers were selected;

[0045] (2) Maturity-promoting breeding and spawning of broodstock

[0046] Cultivate the broodstock of the chrysanthemum-yellow puffer and red-finned puffer in separate ponds, control the water temperature at 18±1°C, change the water 1 / 3-1 / 2 every day, and feed the nereis once, and the feeding amount is calculated as 8% of the parent fish’s body weight , after more than 30 days of ripening cultivation, on April 20, according to the weight of the broodstock according to the injection volume: 100mg / kg and 50mg / kg, the luteinizing releasing hormone analog (LRH-A );

[0047] (3) Artificial insemination and incubation

[0048] 72 hours after the injection of oxytocin drugs, on April 23, 9 female puffer fish with mature eggs were selected fo...

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Abstract

The invention discloses a method of shortening the cultural period of the Takifugu flavidus, which includes the following steps: (1) selecting the Takifugu flavidus and the Takifugu rubripes at age between 3 and 5 in proportion of 2 to 1 in every March and April for parent fish induced mature culturing; (2) induced breeding and artificial egg collecting by using Luteinizing Releasing Hormone Analog (LRH-A); (3) artificial inseminating the Takifugu flavidus ovum with the Takifugu rubripes sperm; (4) fish fry culturing; (5) culturing in the outdoor earth pond when the body length of the fish fry is more than 3 cm; (6) culturing the fish fries in the fish fry room through the winter; (7) moving the overwintering fish to the outdoor fishpond when the outdoor water temperature is at more than 12 DEG C and going on the market after about five months' culture. The experimental culture result of the method shows that the average weight of the fish reaches more than 0.35 kg, wherein the maximum weight is 0.7 kg; the cultural period is shortened more than one time. The method reduces the culture cost by a big margin and greatly increases the Takifugu flavidus fish product culture benefit.

Description

technical field [0001] The invention relates to a method for shortening the culturing period of commercial fish of puffer chrysanthemum and belongs to the technical field of aquatic biological genetics and breeding. Background technique [0002] Takifugu flavidus belongs to the Fuguformes, Fuguidae. It is mainly distributed in the East China Sea, the Yellow Sea and the Bohai Sea in my country. It is a temperate offshore fish, and the adult fish generally have a body length of 150-250mm. The chrysanthemum yellow oriental puffer is delicious and nutritious, and it is a good product on the table in Jiangsu and Zhejiang in my country. In recent years, the coastal areas of Fujian, Jiangsu, Zhejiang, Hebei and other provinces have begun to artificially breed chrysanthemum yellow puffer. However, due to the long breeding cycle, it takes 3 years to reach the commercial fish size (weight greater than 300g), and the cost of breeding is high and the benefits are high. Low, which limi...

Claims

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Application Information

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IPC IPC(8): A01K61/00
CPCY02A40/81
Inventor 张福崇赵海涛杨贵本李怡群赵振良陈力王六顺宋学章
Owner 河北省水产研究所
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