Artificial crossing cultivation method of seawater takifugu species

A technology of artificial hybridization and seawater, applied in fish farming, application, climate change adaptation, etc., can solve problems such as uneven individual growth, frequent disease occurrence, and smaller size, and achieve the effect of promoting health and development

Inactive Publication Date: 2011-09-21
FRESHWATER FISHERIES RES CENT OF CHINESE ACAD OF FISHERY SCI
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Problems solved by technology

In the process of artificial breeding, the quality of the parents cannot be guaranteed. During the breeding process, diseases occur frequently, individual growth is uneven, and the size gradually becomes smaller. These phenomena have seriously affected the breeding development of oriental p

Method used

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Embodiment Construction

[0012] A method for artificial crossbreeding between species of seawater puffer genus comprises the following steps:

[0013] (1) Selection of parents: Select large and strong individuals, no disease, no disability, no parasites on the body surface, good nutritional status, and normal gonad development. father;

[0014] (2) Parental breeding: put male and female broodstock individuals into indoor cement ponds for cultivation, with a breeding density of 1-10 fish / m 3 , cement pool area 8-15m 2 , the water depth is greater than 100cm, the dissolved oxygen is maintained above 5mg / L, the light is 600-800Lux, the water is micro-flowing, and the water is changed 1-2 times a day; during the breeding period of the parents, animal bait is mainly fed, and the transition to high-protein bait is gradually carried out. Add 30-90ppm fish hormone LH-RH-A to the compound feed, 1‰ Chinese herbal medicine consisting of epimedium, Eucommia, Dangshen or Scrophulariaceae, licorice, astragalus, m...

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Abstract

The invention discloses an artificial crossing cultivation method of seawater takifugu species. The method comprises screening, cultivating and artificial propagation of parent takifugu, incubating, fingerling cultivating and other processes, and is characterized in that on the basis of fully grasping the breeding ecological environment and gonad growth rules of takifugu obscurus and takifugu flavidus, the takifugu flavidus is used as a female parent and the relatively large takifugu obscurus is used as a male parent to simulate a natural ecological environment; mature gonad and ovulation of the parent takifugu are realized by hormone control; an artificial insemination method is employed to realize hybridization among the takifugu species. Synchronously, in the hybridization process, the ecology management is enhanced; and therefore, the oxytocic rate of the hybridization reaches 95 percent, the fertilization rate, the hatchability rate and the opening rate all reach above 80 percent, and the aberration rate of the fingerlings is below 2.0 thousandth.

Description

technical field [0001] The invention belongs to the technical field of fishery resources. In particular, the invention relates to the breeding technology of the genus Fugu, more precisely, it is a method for artificially crossing the species of Fugu using female Fugu chrysanthemum and male Fugu obscura. Background technique [0002] Pufferfish (Fugu), commonly known as puffer fish, bang fish, Ba fish. Due to the deterioration of the ecological environment of puffer and the overfishing of puffer, the number of puffer has declined sharply in recent years. Therefore, people have carried out research on the artificial breeding technology of puffer obscurus and puffer chrysanthemum, and formed a set of perfect human reproduction technology. In recent years, due to the breakthrough of the artificial propagation technology of Fugu obscurus and Fugu chrysanthemum, the culture of puffer fish is developing vigorously. degenerate phenomenon. In the process of artificial breeding, th...

Claims

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Application Information

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IPC IPC(8): A01K61/00
CPCY02A40/81
Inventor 尤洋周彦锋
Owner FRESHWATER FISHERIES RES CENT OF CHINESE ACAD OF FISHERY SCI
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