questions: asking about carp breeding 
 answers: the common dose for all carps is 0.10-0.20 ml ovaprim / kg body weight of males and 0.25-0.80 ml ovaprim / kg body weight of females.
female catla is found to respond positively for a dose range of between 0.4-0.5 ml/kg, while rohu and mrigal respond to lower doses of 0.35 ml / kg and 0.25 ml / kg respectively.
among exotic carps, silver carp and grass carp are bred at doses ranging between 0.40-0.60 ml / kg. big head carp bred successfully at 0.50 ml /  kg. for males of indian carps; 0.10-0.15 ml / kg and for exotic male carps 0.15-0.20 ml / kg of dosages are found to be optimum.