[Lactate dehydrogenase activity and changes in its isoenzyme spectrum in the liver of the bream Abramis brama parasitized by pleurocercoids of the cestode Digramma interrupta].

Changes of lactate-dehydrogenase (KF 1.1.1.27) activity have been studied in the liver of the bream been infected with pleurocercoids of the cestode Digramma interrupta. It is showed, that an increase of enzyme activity depends upon a slowly migrating from LDH-6. Problems of interaction at the level of substrate within a system parasite-host is considered.