However, in the pregnant ewe a more progressive infection may establish in the gravid uterus.
This can have a profound effect on uterine and placental blood flow, particularly in combination with aortocaval compression by the gravid uterus.
The animals were divided into 2 groups and orally infected with gravid segments of adult parasites isolated from 2 naturally infected sand foxes, respectively.
The next day we put a gravid female into the aquarium and allowed her to spawn in the male's nest.
This demonstrated an earlier loss of post-copulatory males than gravid females.
All infections commenced with a single gravid worm attached to the central region of the caudal fin.
Supporting the gravid uterus may relieve symptoms when standing and this gives a useful indication of whether a supportive belt will help.
Female worms were grouped into immature, maturing and gravid and all these stages were present throughout the year.