IJSR - International Journal of Scientific Research

Anita Jhajhria

Volume : VI, Issue : VII, July - 2017

Economically viable approach for Induced breeding of Indian Major Carps and an exotic carp at a hatchery in Western Rajasthan

Anita Jhajhria

Abstract :

A study of Induced eeding was conducted to observe the effect of intramuscular injection of ovaprim on the number of eggs produced, fertilization rate and hatching percentage at a Hatchery in Jodhpur , Rajasthan, during July 1998 to August 2000, on Labeo rohita (Rohu), Cirrhinus mrigala(Mrigal) and Cyprinus carpio (Common carp) .Studied fish specimens were spawned successfully following a single dose of injection of ovaprim in the caudal peduncle of the ooders mostly during day time varying from 7.15 am to 3.30 pm . Hatching occurred within 30 to 87 hrs and the hatching rate was 65 to 90% after fertilization. Average number of eggs (lakhs) produced varied from 1.00 to 3.45, and the overall fertilization rate was 50 to 94%..The number of spawn produced ( in lakhs) varied from 0.4895 to 2.4393 in the Indian major carps and an exotic carp. The synthetic hormones study was done to find out the way to standardize the fish hatchery sector.