[The therapy of swimbladder inflammation (renicola sphaerosporosis) of carp].

In pond experiments the efficiency of different chemotherapy variants against swimbladder inflammation (SBI) was proved. Only by feeding of Fumagillin, specifically affecting Myxosporidians, the infection of kidney with Sphaerospora renicola as well as the force of SBI could be reduced. The chemotherapy with Metronidazole remained inefficacious, whereas the permanent feeding with Methylene blue prevented only the infection with Bothriocephalus acheilognathi and probably lowered insignificantly the breeding-losses on this way. Water-conditioning by means of chloride of lime only lowered the losses caused by gill necrosis, on SBI it had no influence. A relationship between gill necrosis and SBI, that seemed to be possible, could not been corroborated.