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Infectivity of Histomonas meleagridis of Cecal and Liver Origins Compared
Author(s) -
LUND EVERETT E.,
CHUTE ANNE M.
Publication year - 1970
Publication title -
the journal of protozoology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.067
H-Index - 77
eISSN - 1550-7408
pISSN - 0022-3921
DOI - 10.1111/j.1550-7408.1970.tb02370.x
Subject(s) - infectivity , inoculation , biology , incidence (geometry) , significant difference , virology , veterinary medicine , immunology , medicine , virus , physics , optics
SYNOPSIS. Turkey poults were inoculated rectally with 100, 1000, 10,000, or 100,000 Histomonas meleagridis from the ceca of a group of experimentally infected turkeys. Other poults were given the same numbers of histomonads from an infected liver from the same group of source birds, Comparisons of the incidence of infection, liver involvement, mortality, and average survival time following these inoculations showed that organisms of cecal origin were about 100 times more effective in producing histomoniasis than were organisms of liver origin. It is suggested that this difference in infectivity resulted from heavy losses of histomonads of liver origin that were due to various selective processes.