Factory-like full-artificial propagation method of sebastes schlegeli

A technology of artificial reproduction and industrialization, which is applied in climate change adaptation, animal feed, animal feed, etc., can solve the problems of unstable seed supply, low seed survival rate, parent fish easy to stab each other, etc., and increase the breeding cycle and seedling cost, low litter survival rate, and the effect of preventing fry from escaping

CN112400762AActive Publication Date: 2021-02-26山东省海洋资源与环境研究院
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2021-02-26
Patent Text Reader

Abstract

The invention provides a factory-like full-artificial propagation method of sebastes schlegeli. The method comprises the following steps of 1) factory parent fish optimization and cultivation; 2) artificial insemination; 3) parent fish breeding after insemination; 4) parent fish pond arrangement and farrowing; and 5), fry rearing. According to the factory-like full-artificial propagation method ofthe sebastes schlegeli, the insemination success rate of parent fishes reaches 88.5% or above, the farrowing survival rate reaches 78.6% or above, the fry survival rate reaches 48.0% or above, high-quality fries with the average full length of 5.2 cm can be obtained after 2.5 months of cultivation, and the propagation efficiency of female parent fishes of the sebastes schlegeli is effectively improved; and the large-scale mass production of high-quality offspring seeds is broken through, the dependence of directly fishing parent fishes with offspring on wild resources and cage culture parentfish groups is solved, the problems of low factory mating rate, low offspring survival rate and the like are solved, and the method has higher popularization value.
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Description

technical field

[0001] The invention belongs to the technical field of seawater fish breeding; in particular, it relates to an industrialized full-artificial breeding method for flat scorpionfish. Background technique

[0002] Xu's flat scorpionfish, Sebastes schlegelii (Hilgendorf, 1880), also known as Black Rockfish, Black Rockfish in English, is a kind of offshore cold-temperate demersal reef-loving fish belonging to the family Scorpionidae of the order Scorpionidae. Abroad, it is mainly distributed in the east and west coasts of North Korea, the south of Hokkaido in Japan, and the southern waters of the Sea of ​​Okhotsk. Domestically, it is mainly distributed in the Bohai Sea, Yellow Sea and East China Sea. Its meat is tender, delicious, rich in protein and low in fat. It enjoys the reputation of "black grouper" in the north and is very popular among consumers. Because of its strong disease resistance, low temperature resistance, rough food and fast growth, etc. It ha...

Examples

Embodiment

[0054] In November 2018, according to the following steps, 210 female broodstock were artificially inseminated in the workshop of Xu's Flat Scorpion National Breeding Farm of Shandong Yantai Taihua Ocean Technology Co., Ltd., and the females who began to give birth on May 1, 2019 A total of 186 broodstock, the success rate of broodstock insemination was 88.6%, and the survival rate of litter seedlings was 78.6%, using 1200m 3 In water bodies, as of July 15, 2019, a total of 1.68 million high-quality seedlings with an average length of 5.2cm have been cultivated, and the survival rate of the seedlings is 48.0%.

[0055] The present embodiment relates to a kind of industrialized full-artificial propagation method of flat scorpionfish Xu's, and described method comprises the following steps:

[0056] Step 1, parent fish selection and cultivation;

[0057] Step 2, artificial insemination;

[0058] Step 3, broodstock cultivation after insemination;

[0059] Step 4, laying broods...