Experimental Final Hosts of Metagonimus Hakubaensis
(Trematoda: Heterophyidae) and Their Suitability to the Fluke |
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Authors: | Noboru KUDO Chieko OTA Fumiko SAKA Yae IKEDA Yusuke TOMIHISA Yasunaga ITOI Takashi OYAMADA |
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Institution: | 1)Department of Veterinary Parasitology, School of Veterinary Medicine, Kitasato University, Towada, Aomori 034-8628, Japan |
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Abstract: | Seven laboratory mammal and
bird species were orally inoculated with 200–1,000 encysted Metagonimus
hakubaensis metacercariae that had been isolated from naturally infected
lampreys (Lethenteron reissneri) captured in Aomori Prefecture. At 8 and
15 days post-infection, adult flukes were recovered from all of the laboratory animals
tested, and therefore, hamster, rat, mouse, dog, cat, chicken and quail were considered as
final hosts of M. hakubaensis. Recovery rates of the fluke were higher in
dogs and hamsters than in cats, rats, mice, chickens and quails. The flukes recovered from
dogs and hamsters showed increased body length and higher fecundity than those recovered
from the other hosts. These results indicate that the suitability of dogs and hamsters for
M. hakubaensis infection is higher than that of the other laboratory
animals. |
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Keywords: | experimental infection final host Metagonimus hakubaensis suitability |
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