A large scale producing method for all-female mandarin fishes

A production method and technology of mandarin fish, which can be applied in fish farming, climate change adaptation, and additional food elements, etc., can solve the problems that the hormone reversal method is not feasible, and achieve obvious growth advantages and good application prospects

Active Publication Date: 2018-08-10
FOSHAN NANHAI BAIRONG AQUATIC SEED +2
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AI Technical Summary

Problems solved by technology

[0004] Mandarin mandarin fish feed on live fish and shrimps for a lifetime, so the traditional method of feeding artificial diets for hormone reversal is not feasible

Method used

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  • A large scale producing method for all-female mandarin fishes
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  • A large scale producing method for all-female mandarin fishes

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Embodiment 1

[0029] (1) In June 2014, 6,000 freshly hatched mandarin fish were prepared to be fed with bait fish that had just ruptured their membranes (frylings such as bream, mud carp, wheat carp, and soil carp, within one day after the membrane was ruptured) ; From the 3rd day to the 10th day when mandarin fish fry open their mouths, the bait fish splashes (fry splashes such as bream, mud carp, wheat carp, soil carp, etc.) that have ruptured their membranes for 2 to 6 days are matched until the mandarin fish fry are about 1.2 cm long; 10~6 days in advance 12 days in the soil pond to cultivate bait fish water flowers (bream, mud carp, wheat carp, soil carp, silver carp and bighead carp, etc.), to about 1.0 cm, and transfer the bait fish fry to the cement pond for cultivation, and feed 1.2 cm mandarin fish seedlings until they grow to 4 cm. About cm; Cultivate 4-6 cm bait fry in earthen ponds, transfer them to cement ponds, feed bait fish, and feed the bait fish to feed the mandarin fish t...

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PUM

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Abstract

The invention discloses a large scale producing method for all female mandarin fishes. The method includes the following steps: S1, the breeding processing for sex reversal of mandarin fishes: sex reversal of mandarin fishes is performed by adopting the method that bait fishes which are fed with forage mixed with 17alpha-methyl testosterone hormone are ingested by the mandarin fishes in ten days after the mandarin fish fries start feeding and before the differentiation of the sexual gland; S2, the sexual gland identification for the sex reversal individuals; S3, the test cross for the sex reversal individuals; S4, the production for all female mandarin fish fries. The sex reversal of mandarin fishes is performed by adopting the method that the bait fish which are fed with forage mixed with17alpha-methyl testosterone hormone are ingested by the mandarin fishes. The technology of inducing sex reversal of mandarin fishes with high efficiency is established to cooperate with the corresponding biological sex sexual gland microscopic identification technology and the genetic sex test cross identification technology to provide technical support for the control of the mandarin fish sex and the all-female breeding. The sex reversal of the masculinization of 99% of female fishes of mandarin fishes can be realized by the provided method, the female proportion of all-female mandarin fishproduction can reach 100%, and all-female mandarin fishes have obvious growth advantages compared with common breeding mandarin fishes so that the method has an excellent application prospect.

Description

technical field [0001] The invention belongs to the technical field of fish breeding and reproduction, and more specifically relates to a method for large-scale production of all female mandarin fish. Background technique [0002] Siniperca chuatsi (Siniperca chuatsi) is a fish of the order Perciformes, Sinipercaidae, Siniperidae, and the genus Siniperca. Because of its large size, fast growth, delicious taste, and no intermuscular spines, it is deeply loved by consumers at home and abroad. It is known as "freshwater grouper" and is a high-end edible fish. At present, the scale of mandarin fish farming continues to expand. According to the data from the China Fishery Statistical Yearbook, the total output of mandarin fish in my country from 2011 to 2013 was 274,576 tons, 281,502 tons, and 284,780 tons respectively, increasing year by year. In 2013, the total output value of mandarin fish farming in my country exceeded 14 billion yuan , has become an important valuable econom...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01K61/10A01K61/95A23K50/80A23K20/184
CPCA01K61/10A01K61/95A23K20/184A23K50/80Y02A40/81Y02A40/818
Inventor 卢薛李桂峰古勇明胥鹏韩林强江谢武
Owner FOSHAN NANHAI BAIRONG AQUATIC SEED
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