CAJ | 학술논문

　　采用解剖及石蜡切片技术,观察研究了养殖光唇鱼(Acrossocheilus fasciatus)卵巢发育的形态及组织学结构特征。结果表明,第一次性周期内,4-5月龄鱼卵巢处Ⅰ期,内以第Ⅰ时相卵细胞为主；6-18月龄鱼卵巢处Ⅱ期,内以第Ⅱ时相卵母细胞为主,单层滤泡膜形成；19-20月龄鱼卵巢处Ⅲ期,内以第Ⅲ时相卵母细胞为主,双层滤泡膜及放射带形成,胞质内出现液泡及卵黄粒；21-22月龄鱼卵巢处Ⅳ期,内以第Ⅳ时相卵母细胞为主,胞质内充满卵黄粒；23-24月龄鱼卵巢处Ⅴ期,内以第Ⅴ时相卵母细胞为主,滤泡膜脱落；25月龄鱼卵巢处Ⅵ期,内以空滤泡和第Ⅱ、第Ⅲ时相卵母细胞为主。6-7月为主要产卵期,9月产后卵巢恢复至Ⅱ期,12月进入Ⅲ期,并以该期越冬,4月卵巢重新往前发育。光唇鱼属短期分批产卵类型鱼类。
　　채용해부급석사절편기술,관찰연구료양식광진어(Acrossocheilus fasciatus)란소발육적형태급조직학결구특정。결과표명,제일차성주기내,4-5월령어란소처Ⅰ기,내이제Ⅰ시상란세포위주；6-18월령어란소처Ⅱ기,내이제Ⅱ시상란모세포위주,단층려포막형성；19-20월령어란소처Ⅲ기,내이제Ⅲ시상란모세포위주,쌍층려포막급방사대형성,포질내출현액포급란황립；21-22월령어란소처Ⅳ기,내이제Ⅳ시상란모세포위주,포질내충만란황립；23-24월령어란소처Ⅴ기,내이제Ⅴ시상란모세포위주,려포막탈락；25월령어란소처Ⅵ기,내이공려포화제Ⅱ、제Ⅲ시상란모세포위주。6-7월위주요산란기,9월산후란소회복지Ⅱ기,12월진입Ⅲ기,병이해기월동,4월란소중신왕전발육。광진어속단기분비산란류형어류。
Morphological and histological features of ovary development of Acrossocheilus fasciatus were studied us-ing dissecting and tissue sectioning techniques. The results show that the ovary development in the first sexual cycle con-tained I-IV continuous stages. Four to five months after hatching (MAH), the ovary was at stage I and contained stage I oocytes. Six to 18 MAH, the ovary was at stage II, and contained stage II oocytes, during which unilaminar follicle mem-brane formed. Nineteen to 20 MAH, the ovary was at stage III, in which stage III oocytes were contained, the number of layers in follicle membrane changed from one to two, the zona radiate formed between the plasma membrane and follicle membrane. Furthermore, the vacuole and yolk granule appeared in the cytoplasm. Twenty-one to 22 MAH, the ovary was at stage IV, stage IV oocytes were contained, the oocyte cytoplasm was full of yolk granule. Twenty-three to 24 MAH, the ovary was at stage V, stage V oocytes were contained, and the follicle membrane at this stage began to desquamate. Twenty-five MAH, the ovary was at stage VI, empty follicle and oocytes at stage II and III could be found. The spawning season of this species was from June to July, the ovary changed back to stage II in September;in December it changed back to stage III, and over all the winter the ovary remained at this stage. In April, the ovary continued to develop and entered into stage IV. According the morphological and histological characteristics of ovary development, A. fasciatus should be classified into the group of short-term batch-releasing patterned fish.