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Experimental induction of sphaerospora renicola myxosporea infection in common carp cyprinus carpio by transmission of swimbladder protozoans



Experimental induction of sphaerospora renicola myxosporea infection in common carp cyprinus carpio by transmission of swimbladder protozoans



Journal of Applied Ichthyology 2(2): 86-94



The authors have experimental evidence that the protozoa causing the swimbladder inflammation (SBI) of the common carp (Cyprinus carpio) are indentical with presporogonic stages of Sphaerospora renicola Dykova et Lom, 1982 parasitizing the renal tubules. Homogenates prepared from the thickened and inflamed swimbladder of naturally infected common carp, when injected into the abdominal cavity of fish, produced renal sphaerosporosis in the infection-free common carp if the homogenates contained the parasites described by KOVACS-GAYER et al. (8). By intraperitoneal injection, the Unidentified Blood Organisms (UBOs) living in the blood of the common carp were transmissible to common carp, from the blood of which they were demonstrable for a long time. However, they were not transformed into Sphaerospora. To other cyprinids (gibel carp, silver carp, grass carp, tench, roach) neither the blood stages nor the swimbladder stages were transmissible from the common carp.

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Accession: 005423588

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