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Artificial breeding and breeding method of first-generation broodstock under a circulating water system

A technology of circulating water system and hard thorn pine, which is applied in fish farming, application, climate change adaptation, etc., can solve the problems of low fertilization rate, hatching rate, and imperfect breeding methods, etc., and achieves the improvement of hatching rate and simple method , highly operable effect

Active Publication Date: 2022-07-15
华电云南发电有限公司 +1
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AI Technical Summary

Problems solved by technology

[0004] In order to solve the current problems of low fertilization rate and hatching rate of parent fish of Songpan naked carp with hard spines and imperfect breeding methods for the first generation of offspring, the present invention provides a method for artificial breeding and breeding of first generation parent fish of Songpan naked carp with hard spines under a circulating water system , the method is simple and easy to operate, and can realize the natural maturation and large-scale artificial reproduction of the first generation of pine carp in the circulating water system, and promote the development of the pine carp aquaculture industry, thereby achieving effective protection of pine carp The purpose of the naked carp wild resources

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] The artificial breeding and breeding method of the first-generation broodstock of pine pan naked carp, the steps of which are:

[0044] (1) hatching of offspring fry and cultivation of seedlings:

[0045] In mid-November 2015, in the Shigu River section of the middle reaches of the Jinsha River in Lijiang City, Yunnan Province, more than 600 wild broodstock carp were collected by ground cage fishing, and transported to the fish breeding and release station of Hanergy Group Jin'anqiao Hydropower Station for circulation. For cultivation in the water system, the proliferation station is equipped with 80 circular cultivation tanks with a diameter of 3 meters, 40 circular cultivation tanks with a diameter of 2 meters, and 30 cultivation tanks with a diameter of 1 meter. 4 sets of circulating aquaculture systems, each system is equipped with 6 sets of submersible pumps, 1 set of rotary disc filter, 2 sets of wet biological ball filters, 1 set of rain-type aerated biological f...

Embodiment 2

[0061] The artificial breeding and breeding method of the first-generation broodstock of pine pan naked carp, the steps of which are:

[0062] (1) offspring hatching and seedling cultivation:

[0063]From December 13th to 15th, 2016, in the Shigu River section of the middle reaches of the Jinsha River in Lijiang City, Yunnan Province, more than 200 wild broodstock carp were collected by underground cage fishing. Good, can be directly inseminated and reproduced. On December 15, 2016, artificial insemination work was carried out. A total of 53 groups of artificial insemination were obtained, and 45,000 eggs were obtained. The eggs were packed in oxygen bags and transported to the middle reaches of the Jinsha River. The proliferation and release station is equipped with 30 circular cultivation tanks with a diameter of 3 meters, 30 circular cultivation tanks with a diameter of 2 meters, and 30 cultivation tanks with a diameter of 1 meter; 3 sets of circulating water systems, each ...

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Abstract

The invention discloses a method for artificially cultivating and breeding first-generation broodstock of the first-generation carp of P. serrata under a circulating water system. (3) Breeding of the first-generation broodstock; (4) Artificially stimulated gonad maturation of the first-generation broodstock; (5) Artificial insemination of the first-generation broodstock: (6) Artificial incubation of the second-generation broodstock. The method is simple, has strong operability, and has good practical applicability. It can realize large-scale breeding and production of first-generation seedlings of pine and pan naked carp in the circulating water system, promote the development of the breeding industry of pine and pan naked carp, and effectively protect the pine and pan naked carp. Songpan naked carp wild resources. Experiments show that the survival rate of the first generation of pine pan naked carp cultivated in the circulating water system is 80.3-85.1%, the fertilization rate is 75-85%, the hatching rate is 80.5-82.3%, and the survival rate of postpartum broodstock is 71-75%.

Description

technical field [0001] The invention belongs to the technical field of aquaculture, and in particular relates to a method for artificially cultivating and breeding broodstock of the first-generation broodstock under a circulating water system. Background technique [0002] Gymnocypris potanini firmispinatus (Gymnocypris potanini firmispinatus) belongs to Cyprinidae, Cyprinidae, Schizothorax subfamily, Gymnocypris, with long body, slightly flattened, head cone; The lip is thin, the lower lip lateral leaves are narrow, the posterior lip groove is interrupted, and there is no beard; the body is mostly bare, with only anal scales and a few shoulder scales; the dorsal fin spines are thin and weak, the lower part of the posterior margin is serrated, and the starting point is in front of the pelvic fin, cold water Sexual fish. The hard-thorned pine pan naked carp is called bamboo root fish, river fish, etc. It mostly lives in plateau rivers with clear water quality, especially in ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01K61/10A01K61/17
CPCA01K61/10A01K61/17Y02A40/81
Inventor 钟其渝孔维厅倪静洁和晓荣杨燕军罗梅芳关景春易春兰吴伟冉龙正
Owner 华电云南发电有限公司