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International Journal of Current Microbiology and Applied Sciences (IJCMAS)
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National Academy of Agricultural Sciences (NAAS)
NAAS Score: *5.38 (2019)
[Effective from January 1, 2019]
For more details click here

ICV 2017: 100.00
Index Copernicus ICI Journals Master List 2017 - IJCMAS--ICV 2017: 100.00
For more details click here

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PRINT ISSN : 2319-7692
Online ISSN : 2319-7706
Issues : 12 per year
Publisher : Excellent Publishers
Email : editorijcmas@gmail.com / submit@ijcmas.com
Editor-in-chief: Dr.M.Prakash
Index Copernicus ICV 2017: 100.00
NAAS RATING 2018: 5.38

Int.J.Curr.Microbiol.App.Sci.2019.8(6): 3409-3414
DOI: https://doi.org/10.20546/ijcmas.2019.806.404


Seasonal Changes in the Testosterone Level in Different Age Groups of Amur Common Carp
N. Soranganba* and I. J. Singh
Department of Fisheries Resources Management, College of Fisheries, G. B. Pant University of Agriculture & Technology, Pantnagar, U. S. Nagar, Uttarakhand – 263145, India
*Corresponding author
Abstract:

The role of testosterone in reproductive performance of Amur common carp has been studied during different seasons using the RP-HPLC method from gonad and plasma of two different age groups of both sexes. Gonadal and plasma T levels in both the age groups showed similar seasonal trend with highest level in spring season, which decreased in summer and continued to decrease to the lowest level in autumn followed by slight increase in winter season. Statistically significant differences (p< 0.05) were observed in 1+ and 2+ year’s age groups in relation to age, seasons and interaction (age & seasons) for gonadal and plasma T. In both the age groups, levels of gonadal and plasma T were higher in male as compared to female. Pearson’s correlations (p< 0.01) showed significant positive correlation between GSI with gonadal and plasma T. The present study showed that seasonal changes in hormones were found to have profound effect on the scale of success of reproduction of Amur common carp, Cyprinus carpio haematopterus, during spring and summer seasons and 2+ year’s age group showed better reproductive potential.


Keywords: Amur common carp, testosterone, seasonal, reproduction
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How to cite this article:

Soranganba N. and Singh I. J. 2019. Seasonal Changes in the Testosterone Level in Different Age Groups of Amur Common Carp.Int.J.Curr.Microbiol.App.Sci. 8(6): 3409-3414. doi: https://doi.org/10.20546/ijcmas.2019.806.404