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Lesions in the liver of guinea-pigs infected with the swine lungworm, Metastrongylus apri

  • S. Yoshihara (a1)

Abstract

Clear spot lesions were formed on the liver surface in guinea-pigs repeatedly infected with swine lungworm, Metastrongylus apri. The largest lesion, measuring 0.25 cm in diameter, was hard and yellow and showed a large granuloma in the lobule. The nematode larva was located at the centre of the lesion. This finding is likely to be an example of erratic parasitism in guinea-pigs with metastrongylidiasis.

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Copyright

Corresponding author

*Fax: 0084 29 838 7749 Email: yoshis@affrc.go.jp

References

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Dunn, D.R. (1956) The pig lungworm (Metastrongylus spp.) II. Experimental infection of pigs with Metastrongylus apri. British Veterinary Journal 112, 327337.
Höppli, R. (1923) Die durch Ascarislarven bei experimenteller Infektion im Tierkörper bewirkten anatomischen Veränderungen. Virchows Architekutur 244, 159182.
Kumar, V. & Mortelmans, J. (1976) Immune response of guinea-pigs to chemically abbreviated prepatent Metastrongylus apri infection. Parasitology 72, 1318.
Nakagawa, M., Yoshihara, S., Suda, H. & Ikeda, K. (1983) Pathological studies on white spots of the liver in fattening pigs. National Institute of Animal Health Quarterly (Japan) 23, 138149.
Onishi, T. (1973) Infectivity and migratory behavior of Metastrongylus apri in the guinea pig. Japanese Journal of Veterinary Science 35, 515524 (in Japanese with English summary).
Ronéus, O. (1966) Studies on the aetiology and pathogenesis of white spots in the liver of pigs. Acta Veterinaria Scandinavica 7 (Supplement 16).
Taffs, L.F. (1968) Immunological studies on experimental infection of Ascaris suum Goeze 1782. VI. The histopathology of the liver and lung. Journal of Helminthology 42, 157172.
Yoshihara, S. (1973) Origin of isolated Metastrongylus apri antigens in the tissue of adult worms detected by fluorescent antibody staining. Japanese Journal of Parasitology 22, 268275 (in Japanese with English summary).
Yoshihara, S., Nakagawa, M., Suda, H. & Taira, N. (1990) White spots of the liver in pigs experimentally infected with Metastrongylus apri. Japanese Journal of Parasitology 39, 365368.

Lesions in the liver of guinea-pigs infected with the swine lungworm, Metastrongylus apri

  • S. Yoshihara (a1)

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