title: Early development of four Diphyllobothrium species in the final host.
abstract: The early development of four Diphyllobothrium species, D. latum, D. dendriticum, D. ditremum, and D. vogeli, are described. D. latum sheds the entire larval body easily and shows a high shedding rate of 82.1% on average. On the other hand, D. dendriticum exhibits a different developmental pattern, with a low shedding rate of 8.7% in the hamster and a high shedding rate of 34.9% in the rat. D. ditremum is difficult to recover from hamsters but shows a high shedding rate of 42.9%. D. vogeli shows a constant recovery rate of 38.3% without shedding. The species specificity of these four diphyllobothriids is discussed briefly in relation to the early developmental pattern and the growth rate.
authors.affiliation: Department of Environmental Medicine, Shimane Medical University, Izumo, Japan.
authors.forename: Y
authors.initials: Y
authors.lastname: Yamane
authors.forename: G
authors.initials: G
authors.lastname: Bylund
authors.forename: K
authors.initials: K
authors.lastname: Abe
authors.forename: S
authors.initials: S
authors.lastname: Fukumoto
authors.forename: S
authors.initials: S
authors.lastname: Yazaki
mesh_terms: D000818:Animals; D006224:Cricetinae; D004169:Diphyllobothriasis / Q000469:parasitology*; D004170:Diphyllobothrium / Q000254:growth & development*; D006790:Host-Parasite Interactions; D007420:Intestine, Large / Q000469:parasitology; D007421:Intestine, Small / Q000469:parasitology; D008297:Male; D008647:Mesocricetus; D051381:Rats; D013045:Species Specificity