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Experimental Studies of the Life Cycle of Leucocytozoon simondi in Ducks in Norway *
Author(s) -
EIDE ARNE,
FALLIS A. MURRAY
Publication year - 1972
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.1550-7408.1972.tb03494.x
Subject(s) - leucocytozoon , zoology , biology , immunology , gametocyte , malaria , plasmodium falciparum
SYNOPSIS. Pekin ducks were infected naturally and experimentally. The life cycle of Leucocytozoon simondi was followed in the ducks and the vector, a new species of Simulium , close to Simulium dogieli. The prepatent period in the ducks was 4–5 days and developing megaloschizonts appeared in 6–7 days. Schizonts were found in liver, spleen, brain, and kidney. In the kidneys they were located in the glomeruli. Sporogony in some individuals was completed in 7 days at 13–14 C, other individuals developed more slowly, as ookinetes were found in flies 8 days after feeding. The rapid asexual cycle combined with a sporogonic cycle, in which some ookinetes develop rapidly and others more slowly, favors the maintenance of the parasite in an environment with relatively low daily temperatures. This and the size of the megaloschizonts indicate differences between this strain of the parasite and the one occurring in North America.