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Acquired resistance to experimental Heterakis gallinarum infections in pheasants: Relative immunity conferred by exposure to heterakids of different ages

Published online by Cambridge University Press:  05 June 2009

Anne M. Chute  and
Everett E. Lund
Everett E. Lund
Affiliation:
Animal Parasitology Institute, Agriculdtural Research Service, Beltsville, Maryland 20705, U.S.A.
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Abstract

Ring-necked pheasants were exposed to artificially limited 10-day infections with heterakids either from 0-10 or 10–20 days old. The number and length of worms developing from a subsequent challenge dose were compared with those in nonimmunized control birds and with those in birds that had been exposed to a continuous immunizing infection for a total of 49 days: 28 days before challenge and 21 days during the challenge infection.

Type
Research Article
Information
Journal of Helminthology , Volume 48 , Issue 3 , September 1974 , pp. 155 - 159
Copyright
Copyright © Cambridge University Press 1974

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References

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