6533b7d2fe1ef96bd125f4e4

RESEARCH PRODUCT

The influence of adult worm age and definitive host on the transmission of Echinostoma caproni: egg hatchability and miracidial infectivity.

José-guillermo EstebanCarla Muñoz-antoliRafael Toledo

subject

Veterinary medicineEmbryo NonmammalianAdult wormEchinostoma caproniEmbryonic DevelopmentBiologyMiceLong periodCricetinaeEchinostomaparasitic diseasesHelminthsBiomphalaria glabrataAnimalsRats WistarFreshwater molluscInfectivityMice Inbred BALB CBiomphalariaTransmission (medicine)General MedicineAnatomybiology.organism_classificationRatsAnimal Science and ZoologyParasitology

description

AbstractWe analysed the influence of different ages of Echinostoma caproni adult worms reared in different definitive host-species on egg hatchability and miracidial infectivity. Eggs obtained from 2-, 4- and 6-week-old adult worms collected from rats, hamsters and mice, hatched miracidia that were used to infect laboratory-reared specimens of Biomphalaria glabrata. Highest egg hatchability was obtained with eggs derived from hamsters and mice. Egg hatchability did not seem to be affected by the age of E. caproni adult worms. Miracidial infectivity was not affected by the definitive host species. However, miracidial infectivity was affected by the age of adult worms when they developed in the mice intestine. The long period of miracidial infectivity in hamsters revealed this definitive host as the most suitable for experimental development of the life cycle and parasite transmission.

10.1017/s0022149x11000800https://pubmed.ncbi.nlm.nih.gov/22216775