Experimental Histomoniasis in the Guinea Fowl, Numida meleagris

Authors

  • ANNE M. CHUTE,

    1. U. S. Department of Agriculture, Agricultural Research Service, Animal Parasitology Institute, Beltsville, Maryland 20705
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  • EVERETT E. LUND

    1. U. S. Department of Agriculture, Agricultural Research Service, Animal Parasitology Institute, Beltsville, Maryland 20705
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    • We are grateful to Mr. Donald E. Thompson for the histological preparations, and to Mrs. Patricia C. Augustine for the isolation and identification of E. coli from the guinea fowl ceca.


  • A part of a thesis submitted by the senior author in partial fulfillment of the requirements of the M.S. degree in the Department of Zoology, University of Maryland, College Park, Maryland. This work was also part of Protozoological Investigations at the National Animal Parasite Laboratory (now the Animal Parasitology Institute).

SYNOPSIS

Guinea fowl were inoculated rectally with Histomonas meleagridis to produce histomoniasis. The birds were infected readily by this unnatural route. Severe cecal involvement was frequent and long-lasting but liver lesions and death were rare. Turkeys given the same inoculum had high levels of liver involvement and mortality. Guinea fowl responded much less severely to infection with H. meleagridis when infected by a natural route (ingestion of a vector) rather than by rectal inoculation. Thus, naturally acquired infections with H. meleagridis appear to be of small consequence in the guinea fowl.

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