Hostname: page-component-78c5997874-m6dg7 Total loading time: 0 Render date: 2024-11-09T06:01:00.719Z Has data issue: false hasContentIssue false
  • English
  • Français

Immunological differences in Eimeria maxima: effect of a mixed immunizing inoculum on heterologous challenge

Published online by Cambridge University Press:  06 April 2009

P. L. Long  and
B. J. Millard
P. L. Long
Affiliation:
Houghton Poultry Research Station, Houghton, Huntingdon, Cambs. PW17 2DA
B. J. Millard
Affiliation:
Houghton Poultry Research Station, Houghton, Huntingdon, Cambs. PW17 2DA
Get access Rights & Permissions [Opens in a new window]

Summary

The immunological differences known to exist between laboratory strains of Eimeria maxima was confirmed. Protection against challenge with different strains or field isolates of the species could be achieved by including small numbers (25 oocysts) of each in the immunizing inoculum. Similar protection was obtained when 4 distinct populations which were allowed to interbreed were used in the immunizing inoculum. This hybrid mixture of E. maxima was used to immunize chickens against challenge with 7 new isolates of E. maxima from poultry houses in different parts of England. The results show that although immunological differences exist within E. maxima good protection against many strains of this species may be achieved by initial infection with the hybrid mixture of E. maxima.

Type
Research Article
Information
Parasitology , Volume 79 , Issue 3 , December 1979 , pp. 451 - 457
Copyright
Copyright © Cambridge University Press 1979

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

REFERENCES

Cooper, D. M. & Timms, J. R. (1972). The rearing and maintenance of breeding chickens in isolators. 1. Glassfibre isolators. Avian Pathology 1, 47–57.CrossRefGoogle Scholar
Jeffers, T. K. (1974 a). Genetic transfer of anticoccidial drug resistance in Eimeria tenella. Journal of Parasitology 60, 900–64.CrossRefGoogle ScholarPubMed
Jeffers, T. K. (1974 b). Eimeria acervulina and E. maxima incidence and anticoccidial drug resistance of isolates in major broiler producing areas. Avian Diseases 18, 331–42.CrossRefGoogle Scholar
Jeffers, T. K. (1978). Genetics of coccidia and the host response. In Avian Coccidiosis 13th Poultry Science Symposium (ed. Long, P. L., Boorman, K. N. and Freeman, B. M.), pp. 51–125. Edinburgh: Longman Group Ltd.Google Scholar
Johnson, J. & Reid, W. M. (1970). Anticoccidial drugs: lesion scoring techniques in battery and floor pen experiments with chickens. Experimental Parasitology 28, 30–6.CrossRefGoogle ScholarPubMed
Joyner, L. P. & Norton, C. C. (1976). The immunity arising from continuous low level infection with Eimeria maxima and Eimeria acervulina. Parasitology 72, 115–25.CrossRefGoogle ScholarPubMed
Long, P. L. (1959). A study of Eimeria maxima (Tyzzer, 1929) a coccidum of the fowl. Annals of Tropical Medicine and Parasitology 53, 325–33.CrossRefGoogle ScholarPubMed
Long, P. L. (1962). Observations on the duration of the acquired immunity of chickens to Eimeria maxima (Tyzzer, 1929). Parasitology 52, 89–93.CrossRefGoogle Scholar
Long, P. L. (1974). Experimental infection of chickens with two species of Eimeria isolated from the Malaysian jungle fowl. Parasitology 69, 337–47.CrossRefGoogle ScholarPubMed
Long, P. L., Joyner, L. P., Millard, B. J. & Norton, C. C. (1976). A guide to laboratory techniques used in the study and diagnosis of avian coccidiosis. Folia veterinaria Latina 6, 201–17.Google Scholar
Long, P. L. & Millard, B. J. (1979). Eimeria: further studies on the immunization of young chickens kept in litter pens. Avian Pathology, (in the Press).CrossRefGoogle ScholarPubMed
Long, P. L., Tompkins, R. V. & Millard, B. J. (1975). Coccidiosis in broilers: evaluation of infection by the examination of broiler house litter for oocysts. Avian Pathology 4, 287–94.CrossRefGoogle ScholarPubMed
Norton, C. C. & Hein, H. E. (1976). Eimeria maxima: a comparison of two laboratory strains with a fresh isolate. Parasitology 72, 345–54.CrossRefGoogle ScholarPubMed
Norton, C. C. & Joyner, L. P. (1968). The freeze preservation of coccidia. Research in Veterinary Science 9, 598–600.CrossRefGoogle ScholarPubMed
Ryley, J. F. & Betts, M. J. (1973). Chemotherapy of chicken coccidiosis. Advances in Pharmacology and Chemotherapy 11, 221–93.CrossRefGoogle ScholarPubMed
Timms, J. R., Cooper, D. M., Millard, B. J. & Powell, P. C. (1979). An isolator for avian disease research. Laboratory Animals 13, 101–5.CrossRefGoogle ScholarPubMed
Tyzzer, E. E. (1929). Coccidiosis in gallinaceous birds. American Journal of Hygiene 15, 269–383.Google Scholar