EN
Despite great advances in new technologies for breeding and rearing fish, little progress is noted in prophylactic technologies for spawners, particularly those used in carp rearing. The condition and non-specific immunity of males and females has a decisive impact on the quality and fertilization of spawn, on the course of rearing larvae and fry in the first weeks of life, and on the subsequent stages of rearing. The aim of the current study was to determine the level of lysosome and ceruloplasmin activities and on the level of gamma globulin in the females of three carp lines reared in Poland- starzawski, zatorski, and węgierski. The results of the study indicated unequivocally that the highest non-specific humoral immunity potential was noted in the females from the starzawski line. The highest statistically significant levels of lysosome and gamma globulin activity were noted in selects from this line in comparison to those of the zatorski or węgierski lines. However, no significant differences were noted in the ceruloplasmin activities or total protein levels among the lines studied. This informs the direction of further study, which should focus on identifying lines and their cross-breeds that have the highest potential immunity to viral, bacterial, and fungal infections.