Infecção por Kudoa Meglitsch, 1947 (Myxozoa: Multivalvulida) em musculatura esqueletica de espada Trichiurus lepturus L. (Teleostei: Trichiuridae)

Abstract

The presence of Kudoa sp in somatic muscle of cutless fish (Trichiurus lepturus) captured at Itaipu beach, Niterói, Rio de Janeiro, is been reported. It was used as samples 47 specimes, measured and necropsied at the Laboratório de Inspeção e Tecnologia de Pescado da Faculdade de Veterinária daUniversidade Federal Fluminense. The tissues were processed for paraffin inclusion and stained by hematoxilina-eosin. From the total samples, nine of them (19.15%) showed plasmodic type cists in muscular fibers without inflammatory reaction. It was four valves, the principal feature of the genus. The number of cysts varied from one to 15, with a average of 5,1. The length and width average of cysts were 82,57 and 28,27, respectively. The length average of positive fishes was 116cm. The smaller animal (68,0) showed more cysts. It was not observed myoliquefaction even several hours after captured.