Efficiency of rainbow trout cultivation in cage farm conditions

Materials on the effectiveness of rainbow trout cultivation, received on the trout farm at Lake Svyatozero (Pryaza district, Republic of Karelia), in different seasons are presented. It is shown that the purchase of trout in autumn and its winter stay in fish cages assists in receiving fish more adaptable to further cultivation. The data analysis shows that all factors influencing conditions of each particular fish farm must be taken into account. The delivery schedule of juveniles at the optimum time must be considered to ensure a sufficient number of marketable products.