Recovery, growth, and development of Acanthoparyphium tyosenense (Digenea: Echinostomatidae) in experimental chicks.
Chicks were experimentally infected with Acanthoparyphium tyosenense (Digenea: Echinostomatidae) metacercariae per os, and the growth and development of worms in this host were observed from days I to 38 postinfection (PI). The worms grew rapidly and matured sexually in the small intestine (chiefly in the jejunum) of chicks by day 5 PI. and survived at least up to day 38 Pi, although worm recovery decreased after day 5 PI. Both parenchymal and reproductive organs increased greatly in size from day 2 to day 10 PI and then continued to increase gradually in size up to day 38 PI. The number of uterine eggs reached a peak on days 10 and 15 PI and then decreased gradually. The results suggest that chicks are a fairly suitable definitive host for experimental infection with A. tyosenense.
Han
E T
ET
Department of Parasitology, Seoul National University College of Medicine, and Institute of Endemic Diseases, Seoul National University Medical Research Center, Seoul 110-799, Korea.
Kim
J L
JL
Chai
J Y
JY
D000818:Animals; D002645:Chickens; D004450:Echinostomatidae / Q000254:growth & development*; D005260:Female; D007411:Intestinal Diseases, Parasitic / Q000469:parasitology*; D007421:Intestine, Small / Q000469:parasitology; D008297:Male; D008974:Mollusca; D012741:Sexual Maturation; D014201:Trematode Infections / Q000469:parasitology*