Abstract：
:The tissue cholesterol and serum cortisol changes during four reproductive phases has been studied in the freshwater fish Notopterus notopterus of male sex during four phases, preparatory (January - March), prespawning (April - May), spawning (August - September) and post spawning (November - December). The cholesterol content of the testis and liver increased during preparatory phase and maximum content of cholesterol was during spawning phase. The serum cortisol estimated by radioimmunoassay (RIA) technique which indicated that the level of the hormone was high during pre-spawning and spawning phases compared to other two phases. The increase in cholesterol during preparatory and spawning phases may be because of increase in cortisol synthesis needed for testicular growth and spermetogenesis during these phases. The gonadosomatic index (GSI) also increased during these phases.
journal_name
J Environ Bioljournal_title
Journal of environmental biologyauthors
Shankar DS,Kulkarni RSsubject
Has Abstractpub_date
2005-10-01 00:00:00pages
701-4issue
4eissn
0254-8704issn
2394-0379journal_volume
26pub_type
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