Occurrence of proliferative kidney disease in an indoor recirculation unit and indirect experimental contamination of the rainbow trout.
Chilmonczyk, S., Thomas, P. and de Kinkelin, P.
Bull. Eur. Ass. Fish Pathol.
A clinical case of PKD occurred in rainbow trout held in an indoor recirculating unit together with goldfish and carp. The goldfish harboured spores of a myxozoan parasite belonging to the genus Sphaerospora suggesting that at least this non-salmonid fish species could be at the origin of the infection. While cohabitation experiments with the goldfish failed to transmit the disease to trout, the infection of PKX-free young rainbow trout was obtained by exposing them to sediments from the decantation tank of the recirculating unit.