THE OVARY INHIBITING HORMONE ACTIVITY IN THE EYESTALKS OF FRESH WATER PRAWN, CARIDINA RAJADHARI
B. PERSIS *
DEPARTMENT OF ZOOLOGY, MARATHWADA UNIVERSITY, AURANGABAD-431004, INDIA.
R. SAROJINI *
DEPARTMENT OF ZOOLOGY, MARATHWADA UNIVERSITY, AURANGABAD-431004, INDIA.
*Author to whom correspondence should be addressed.
Abstract
The activity of the ovary inhibiting hormone in the eyestalks of fresh water prawn, Caridina rajadhari was studied. The mean ovarian index, and the oocyte diameter differed variedly amongst normal animals, eyestalk ablated animals and eyestalk ablated plus eyestalk extract injected animals. In eyestalk ablated animals, the oocyte diameter and ovarian index increased markedly when compared with other two groups; a rapid maturation of oocytes was observed in eyestalk ablated animals.