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Quantitative studies on the transmission of Parahistomonas wenrichi by ova of Heterakis gallinarum

Published online by Cambridge University Press:  06 April 2009

Paul E. M. Fine
Paul E. M. Fine
Affiliation:
Department of Medical Protozoology, London School of Hygiene and Tropical Medicine, London WC1E 7HT
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Extract

Three groups of chickens were fed small numbers of ova (3, 5 or 9 ova per bird) of Heterakis gallinarum in a quantitative study of the transovarial transmission of Parahistomonas wenrichi by the nematode. Subsequent incidence rates of Parahistomonas infections in recipient birds were analysed according to the methods of Chiang & Reeves (1962). The results indicated that at least 25 % of Heterakis ova, passed in the faeces of birds with concomitant Parahistomonas infection, carried the protozoon. The appearance of Parahistomonas in a bird which retained all its challenge nematodes indicated that the protozoon can be released by living worms. Data on the pre-patent periods of Parahistomonas infections are consistent with a hypothesis that the protozoon is typically released at the time of the final (fourth) moult of the nematode.

Type
Research Article
Information
Parasitology , Volume 70 , Issue 3 , June 1975 , pp. 407 - 417
Copyright
Copyright © Cambridge University Press 1975

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References

REFERENCES

Chiang, C. L. & Reeves, W. C. (1962). Statistical estimation of virus infection rates in mosquito populations. American Journal of Hygiene 75, 377–91.Google Scholar
Clapham, P. A. (1933). On the life history of Heterakis gallinae. Journal of Helminthology 11, 67–86.CrossRefGoogle Scholar
Fine, P. E. M. (1975). (In preparation.)Google Scholar
Graybill, H. W. & Smith, T. (1920). Production of fatal blackhead in turkeys by feeding embryonated eggs of Heterakis papillosa. Journal of Experimental Medicine 31, 647–55.CrossRefGoogle ScholarPubMed
Joyner, L. P. (1966). Infections with Heterakis gallinarum in chickens following recovery from histomoniasis. Parasitology 56, 171–7.CrossRefGoogle ScholarPubMed
Lee, D. L. (1969). The structure and development of Histomonas meleagridis (Mastig amoebidae: Protozoa) in the female reproductive tract of its intermediate host, Heterakis gallinarum (Nematoda). Parasitology 59, 877–84.CrossRefGoogle Scholar
Levine, N. D. (1961). Protozoan Parasites of Domestic Animals and of Man. Minneapolis: Burgess Publ. Co.CrossRefGoogle Scholar
Lund, E. E. (1963). Histomonas wenrichi n.sp. (Mastigophora: Mastigamoebidae), a non-pathogenic parasite of gallinaceous birds. Journal of Protozoology 10, 401–4.CrossRefGoogle Scholar
Lund, E. E. (1968). Acquisition and liberation of Histomonas wenrichi by Heterakis gallinarum. Experimental Parasitology 22, 62–7.CrossRefGoogle ScholarPubMed
Lund, E. E. (1971). Histomonas meleagridis and H. wenrichi: time of acquisition by Heterakis gallinarum. Experimental Parasitology 29, 59–65.CrossRefGoogle Scholar
Lund, E. E. (1972). Transplantation of Heterakis gallinarum larvae: effects on development of H. gallinarum and the transmission of Parahistomonas wenrichi. Proceedings of the Helminthological Society of Washington 39, 59–64.Google Scholar
Lund, E. E. & Burtner, R. H. (1957). Infectivity of Heterakis gallinae eggs with Histomonas meleagridis. Experimental Parasitology 6, 189–93.CrossRefGoogle ScholarPubMed
Lund, E. E. & Chute, A. M. (1972). Means of acquisition of Histomonas meleagridis by eggs of Heterakis gallinarum. Parasitology 66, 335–42.CrossRefGoogle Scholar
Reid, W. M. (1967). Etiology and dissemination of the blackhead disease syndrome in turkeys and chickens. Experimental Parasitology 21, 249–75.CrossRefGoogle ScholarPubMed
Soulsby, E. J. L. (1968). Helminths, Arthropods and Protozoa of Domesticated Animals. (6th edition of Monnig's Veterinary Helminthology and Entomology.) Baltimore: Williams and Wilkins Co.Google Scholar
Wenrich, D. H. (1943). Observations on the morphology of Histomonas (Protozoa, Mastigophora) from pheasants and chickens. Journal of Morphology 72, 279–303.CrossRefGoogle Scholar