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Histology and seasonal changes in the testes of a hill-stream fish Schizothorax plagiostomus.

作者信息

Shrestha T K, Khanna S S

出版信息

Z Mikrosk Anat Forsch. 1976;90(4):749-61.

PMID:1031236
Abstract

Histology and annual cyclic changes in the testicular activity of S. plagiostomus have been described. The reproductive cycle has been divided into eight phases. The weight and volume of the testes and GSI show correlation with each other, and increase twice in a year (September and March), indicating the existence of two spawning periods. A distinct dormant period during winter intervenes the spawning peaks. Although the testes contain mature spermatozoa during winter, spermiation remains halted until last week of February. On the return of favourable environmental conditions in March, spermiation begins again and complete depletion takes place.

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