CAJ | 학술논문

每天采样观察3~60日龄人工养殖的黄颡鱼Pelteobagrus fulvidraco性腺分化和发育的组织学。结果表明：在水温（20±4）℃下，黄颡鱼卵巢的分化明显早于精巢，性腺的分化型为雌性异体型。孵出后14d卵巢开始分化，原始性腺在横切面出现组织突起，逐步形成卵巢腔；雄性分化始于孵出后54d，主要标志是形成输精管原基,进而形成输精管。本研究成果为黄颡鱼的人工繁殖提供了理论依据。
매천채양관찰3~60일령인공양식적황상어Pelteobagrus fulvidraco성선분화화발육적조직학。결과표명：재수온（20±4）℃하，황상어란소적분화명현조우정소，성선적분화형위자성이체형。부출후14d란소개시분화，원시성선재횡절면출현조직돌기，축보형성란소강；웅성분화시우부출후54d，주요표지시형성수정관원기,진이형성수정관。본연구성과위황상어적인공번식제공료이론의거。
Gonadal differentiation and development of 3~60 day-old yellow catfish Pelteobagrus fulvidraco reared artificially were ob-served by histological techniques in the study. The results showed that differentiation was found to be earlier in the ovary than that in the testicle at water temperature of (20 ±4)℃, yellow catfish being a gonochoristic differentiation. The ovarian differentiation was found to be began 14 days after hatching, and showed the formation of organic heave (OH) , gradually forming the ovarian cavity. However, the testicular differentiation was found to be occurred 54 days after hatching, and to show the formation of spermaduct an-lage(SA), gradually forming the seminiferous duct. The findings provide theoretical basis for artificial breeding of yellow catfish.