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[养殖条件下欧洲鲈（Dicentrarchus labrax）性腺的发生与性别分化]

[Gonadal ontogenesis and sex differentiation in the sea bass, Dicentrarchus labrax, under fish-farming conditions].

作者信息

Roblin C, Bruslé J

出版信息

Reprod Nutr Dev (1980). 1983;23(1):115-27.

PMID:6844709
Abstract

The histology of the different stages of gonadal development (appearance of PGC, edification of gonad primordium, organization of an undifferentiated gonad, testicular or ovarian development) has been studied in fingerlings and juveniles of sea-bass in fish-culture conditions. Sex differentiation with a caudo-cranial gradient was direct and more in accordance with length than with age. Ovarian and testicular differentiation occurred in fish 11 to 23 months old and from 90 to 187 mm SL. Testis ova were frequently observed.

摘要

在养殖条件下，对海鲈幼鱼和幼鱼性腺发育不同阶段（原始生殖细胞的出现、性腺原基的形成、未分化性腺的组织、睾丸或卵巢发育）的组织学进行了研究。具有尾到头梯度的性别分化是直接的，更多地与体长相关，而非年龄。卵巢和睾丸分化发生在11至23个月大、体长90至187毫米的鱼中。经常观察到睾丸卵。

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