Pukalo P. Lerneosis of carp fishes (epizootology, pathogenesis, measures of fight)

The dissertatation contains the materials on studying of epizootological situation, pathogeny and treatment measures of carp lerneosis under the conditions of the West Ukraine region using growing intensive technology. The carried out researches give the possibility for deeper studying of extensiveness and intensity of the carp lerneosis invasion in the fish-breeding farms depending on their hydrochemical and hydrobiological water regime and season. We were the first to propose the complex approach of studying of main mutual relations "parasite-host" under carp lerneosis. The histological, haematological, immunological and biochemical methods of research were applied for this purpose. It has been estimated that lernea metabolites substantially influence on blood-forming function, immune status of fish organism and on functional state of internal organs. It has been studied the toxic dynamics of neguvon N and it has been established neguvon N toxic parameters in sharp experiments on one-year carp-sazan hybrid. By experimental researches it has been established that preparation neguvon N reveals high 100% therapeutic efficiency of carp lerneosis treatment in a dose of 0,5 ml/l under the conditions of three times using with 7 days interval. Under the industrial conditions extenseffectiveness of neguvon N was 98%.