Comparative growth and development of the metacercariae of Fibricola seoulensis (Trematoda: Diplostomidae) in vitro, in vivo and on the chick chorioallantois

Kisaengch'unghak chapchi. The Korean journal of parasitology
B S Seo

Abstract

The growth and development of the metacercariae of F. seoulensis cultivated in vitro or on the chick chorioallantois were assessed by comparison with the optimum process of maturation in albino rats and new born chickens. The process of maturation was divided for convenience into six stages: Stage 1; cell multiplication, Stage 2; body shaping, Stage 3; separation of genital anlagen, Stage 4; organogeny, Stage 5; gametogony, and Stage 6; oviposition. In Hank's and Tyrode's solutions, the metacercariae were alive up to 200 days or more at 4 degrees C without any development. The in vivo maturation process in rats or chicks was as follows: stage 1 from 6 hours; stage 2 from 24 hours; stage 3 from 48 to 72 hours; stage 4 from 3 to 4 days; stage 5 from 4 to 5 days; and stage 6 from 5 to 8 days. Despite unsuccessful infection of the metacercariae to 12 day old chicks, fully mature worms of stage 5 or 6 were recovered from new born chicks (1 to 2 days old). The metacercariae of F. seoulensis grown in vitro were up to stage 3 and no further maturation was observed. Of various media employed, the medium NCTC 109 (Gibco) or NCTC 135 (Gibco) supplemented with 20% egg yolk or 20% whole egg macerate or 0.5% yeast was basically required for ...Continue Reading

References

Sep 1, 1988·Kisaengch'unghak chapchi. The Korean journal of parasitology·Byong Seol SeoSung Tae Hong
Jun 1, 1986·Kisaengch'unghak chapchi. The Korean journal of parasitology·Sung Tae HongSoon Hyung Lee
Jun 1, 1985·Kisaengch'unghak chapchi. The Korean journal of parasitology·Soon Hyung LeeJe Geun Chi
Jun 1, 1984·Kisaengch'unghak chapchi. The Korean journal of parasitology·Sung Tae HongByong Seol Seo
Dec 1, 1982·Kisaengch'unghak chapchi. The Korean journal of parasitology·Byong Seol SeoHun Yong Lee

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Citations

Mar 1, 1997·The Korean Journal of Parasitology·J KookJ Y Chai

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