[Serum proteins of rainbow trout in viral hemorrhagic septicemia].

Investigations on both healthy and sick of viral hemorrhagic septicemia artificially reared trouts aged one and three years were carried out. The total protein amount and the protein fractions were determined. It was established that in case of viral hemorrhagic septicemia the quantity of total protein in the blood serum is considerably reduced both in one year- and in three-year-old trouts. The study on protein fractions proved that the content of serum albumen sharply drops in sick trouts. The sick trouts have considerably higher alpha-globulin values than the healthy ones. beta-globulins are also increased in the fish suffering from septicemia. It was established that the beta 1:beta 2-globulin ratio in healthy one year- and three-year-old trouts is respectively 1.7:1 and 1.5:1. Higher values were established also for the gamma-globulin component in the blood serum of sick fish. In all investigations only one gamma-globulin fraction was assessed. The albumen-globulin coefficient in sick one year- and three-year-old trouts is 0.17 and 0.25, while in healthy fish of the same age it is 0.91 and 1.3 respectively.