JEB logo

Journal of Environmental Biology

pISSN: 0254-8704 ; eISSN: 2394-0379 ; CODEN: JEBIDP

About Journal
    Editorial Board
    Reviewer Panel
    RnD Division
    Subscription Info
    Contact Journal
 
Read Journal
    Current Issue
    Journal Archives
 
For Authors
    Authoring Guidelines
    Publication Process
    Track Paper Status
 
Announcements
    JEB Award
 

Search the Journal web-site through Google:


        Abstract - Issue Sep 2014, 35 (5)                                                                                                             Back



nstantaneous and historical temperature effects on a-pinene

Influence of bilateral eyestalk ablation on gonads of fresh water prawn, Macrobrachium dayanum

 

Pervaiz Ahmed Pervaiz* and Malabika Sikdar

Department of Zoology, School of Biological and Chemical Science, Dr Harisingh Gour University, Sagar-470 003, India

*Corresponding Authorís Email : pervaiz.naik@ymail.com 

 

 

Publication Data

Paper received:

28 Jan 2013

 

Revised received:

18 June 2013

 

Re-revised received:

05 August 2013

 

Accepted:

19 August 2013

 

Abstract

The study was carried out in laboratory for one month to know the effect of bilateral eyestalk ablation on gonads of Macrobrachium dayanum. Healthy specimens of Macrobrachium dayanum in the size group of (4-6 cm in length) were taken for the experiment. The eyestalk ablation was done by cutting away the eyestalks from their bases with sterilized scissor. The results here obtained indicated positive effects of eyestalk ablation on ovary and testes of Macrobrachium dayanum. The histological details of the female prawns which were ablated showed post-vitellogenic oocytes; where as unablated females prawn never developed beyond pre-vitellogenic oocytes. Similarly in males, testes showed pronounced development of different cells as compared to unablated ones. Fully developed spermatozoa were seen in ablated ones. Gonadosomatic studies also showed that ovarian and testicular cells developed better as compared to control and these findings suggest the fact that the eyestalks of M. dayanum contain ovary and testis inhibiting factors. †

 

 Key words

Eyestalk ablation, Gonad, Histology, Prawn

 

 

Copyright © 2014 Triveni Enterprises. All rights reserved. No part of the Journal can be reproduced in any form without prior permission. Responsibility regarding the authenticity of the data, and the acceptability of the conclusions enforced or derived, rest completely with the author(s).