title: Length and hatchability of Schistosoma mansoni eggs.
abstract: Mature Schistosoma mansoni eggs, purely isolated from the intestines of infected mice, were allowed to hatch and classified microscopically according to their lengths. The hatching percentage and the type of shell rupture were studied. An inverse relationship between the length and hatchability of eggs was proved. Smaller eggs have a high hatchability percentage, while eggs larger than 160 um in length failed to hatch. The predominance of oblique type of tear in the shells after rupture suggests a longitudinal arrangement of egg shell chemical constituents.
authors.affiliation: Department of Parasitology, Faculty of Medicine, Mansoura University, Egypt.
authors.forename: S A
authors.initials: SA
authors.lastname: Romia
mesh_terms: D000818:Animals; D010063:Ovum / Q000502:physiology* / Q000648:ultrastructure; D012550:Schistosoma mansoni / Q000502:physiology*