Experimental Trichinella infection in seals.

摘要: Abstract The susceptibility of seals to infection with Trichinella nativa and the cold tolerant characteristics muscle larvae in seal meat were evaluated. Two grey seals, Halichoerus grypus , inoculated 5,000 (100 larvae/kg) T. two 50,000 (1,000 larvae/kg). One from each dose group control killed at 5 10 weeks post-inoculation (p.i.). At p.i., was established both low high mean larval densities 68 472 per gram (lpg), respectively, using eight different muscles for analyses. 531 2,649 lpg, suggesting an extended persistence intestinal worms. In density infections, distribution various uniform, but one a infection, predilection sites included groups relative blood flow, i.e. diaphragm, intercostal rear flipper muscles. -specific antibody levels, as measured by ELISA, increased during week experimental period. Infected stored 5, −5 −18 °C 1, 4 8 weeks. Muscle released artificial digestion into mice assess viability infectivity. Larvae p.i. tolerated only 1 °C, supporting hypothesis that freeze tolerance increases age host–parasite tissue complex. expressed production larvae, response are new findings first any marine mammal suggest pinnipeds (phocids, otariiids or walrus) may acquire scavenging even small amounts infected left hunters predators.