Page 44 - 《渔业研究》2026年第1期

第 1 期 李雷斌等： 弓斑东方鲀全人工繁育技术研究 41

Study on artificial breeding technology of cultured Takifugu ocellatus

LI Leibin，WEN Ping，FANG Minjie，GUO Shaopeng，QIU Denggao，WU Shuiqing，ZENG Qingmin
(Key Laboratory of Cultivation and High-value Utilization of Marine Organisms in Fujian Province,
Fisheries Research Institute of Fujian, Xiamen 361013, China)

Abstract: [Objective] The study aims to analysis the growth, reproduction, and gonadal development of Taki-
fugu ocellatus under artificial breeding conditions. [Methods] The growth and gonadal development of artifi-
cial breeding T. ocellatus F were observed by three-year artificial culture, and the effects of different salinity (0,
1
5, 10, 15, 20, 25, 30) on the fertilization and hatching of mature eggs of T. ocellatus F were studied during the
1
breeding season. [Results] 1) The body mass were (55.4±14.6) g at one year old, and (105.9±25.8) g at two
years old, and (148.0±35.5) g at three years old under freshwater rearing conditions, respectively; most individu-
als could develop to sexual maturity at two years old. 2) T. ocellatus reproduced once a year in the Zhangzhou
area of Fujian, and the breeding time was from early October to mid-November. The gonads of female
fish could develop to stage Ⅳ from 2-year-old to 3-year-old in freshwater culture conditions, but they couldn’t
naturally ovulate. Female broodstocks could obtain physiologically mature eggs after injection of the hormone
HCG or LRH-A. 3) Salinity had a significant effect on the fertilization of mature eggs and hatching of fertilized
eggs of T. ocellatus. When the salinity was 0, mature eggs couldn’t be fertilized, and fertilized eggs couldn’t
be hatched; when the salinities were 5.0 and 10.0, the fertilization rate and hatching rate were 78.6%, 94.4%,
and 7.6%, 31.3%, respectively. 4) The eggs of T. ocellatus were adhesive eggs, and that of the diameter of egg
after water absorption and expansion was 1.131 to 1.163 mm. The absolute egg production was (1.92−6.25)×10 4
eggs of female broodstocks which body mass changed from 82.3 g to 115.7 g. It took 5−6 days from
fertilized eggs to the hatching of fry under the conditions of salinity 20 and water temperature 20.2−25.5 ℃.
[Conclusion] The successful full-artificial breeding of T. ocellatus can initially solve the problem of seedling
sources, and also lay a foundation for the research on the artificial mass breeding and the release of wild re-
sources.
Key words: Takifugu ocellatus; artificial breeding; salinity; growth