Effect of the Different Spawning Inducing Hormones on the Fertilization and Hatching Efficiency of Rohu, Labeo Rohita by Induced Breeding Technique

By : Kiruthiga Lakshmi D , Karl Marx , Jothiramalingam Killivalavan , Jeya Shakila. R

Page No: 257-262

Abstract
The present study aims at developing a standardized technique for the in vitro fertilization in Labeo rohita in the commercial hatchery, Chola Fish Seed Farm, Vaduvoor, Thiruvarur district using different spawning agents. The brooders were injected with different spawning inducing hormones such as Ovaprim, Ovatide and Wova-FH at a dosage of 0.4 ml/kg body weight to the males and 0.5 ml/kg body weight to the females. After 6 hrs of hormone injection, gentle stripping was done from both females and males and in vitro fertilization was done. Followingly, the average fertilization and hatching rate was calculated. The Wova-FH hormone injected fishes got maximum fertilization rate of 94.40±0.83% and hatching rate of 88.36±0.82% than Ovaprim and Ovatide injected fishes comprehension.

Authors :
D. Kiruthigalakshmi, K. Karalmarx, K. Aruljothi and R. Jeyashakila
Fisheries College & Research Institute, Tamil Nadu Fisheries University, Thoothukudi - 628 008, Tamil Nadu, India.