Plasma sex steroid hormonal profile and gonad histology during the annual reproductive cycle of river catfish Hemibagrus nemurus (Valenciennes, 1840) in captivity

Plasma sex steroid hormonal profile and gonad histology were correlated to study the annual reproductive cycle of Hemibagrus nemurus . Hormones were measured by Enzyme Linked Immunosorbent Assay. Gonad tissues were observed by using light microscopy. The highest testosterone (T) value for male was o...

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Bibliographic Details
Published in:Fish physiology and biochemistry 2013-06, Vol.39 (3), p.547-557
Main Authors: Adebiyi, Fatimat Adenike, Siraj, Siti Shapor, Harmin, Sharr Azni, Christianus, Annie
Format: Article
Language:English
Subjects:
Analysis of Variance
Animal Anatomy
Animal Biochemistry
Animal Physiology
Animals
Aquaculture
Biomedical and Life Sciences
Catfishes - anatomy & histology
Catfishes - blood
Enzyme-Linked Immunosorbent Assay
Estradiol - blood
Female
Freshwater & Marine Ecology
Gametogenesis - physiology
Gonadal Steroid Hormones - blood
Gonads - anatomy & histology
Gonads - physiology
Histology
Hormones
Life Sciences
Light microscopy
Male
Microscopy
Morphology
Ovaries
Plasma
Reproduction - physiology
Reproductive cycle
Seasons
Spawning
Spermatogenesis
Steroids
Testosterone
Testosterone - analogs & derivatives
Testosterone - blood
Zoology
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Summary:Plasma sex steroid hormonal profile and gonad histology were correlated to study the annual reproductive cycle of Hemibagrus nemurus . Hormones were measured by Enzyme Linked Immunosorbent Assay. Gonad tissues were observed by using light microscopy. The highest testosterone (T) value for male was observed in November and that of female was in October. 11-ketotestosterone (11-KT) and 17β-estradiol (E2) levels were highest in June and November, respectively. Hormonal profiles of T, 11-KT and E2 showed several peaks which indicated a non-seasonal pattern. There were significant differences ( p  
ISSN:0920-1742
1573-5168
DOI:10.1007/s10695-012-9718-x