If we create an artificial environment to an animal, so that the feeds/grasses/silage/forage, concentrate, and water whatever we provide are totally parasites and their eggs or larvae free, then does the animal become endoparasite free forever in its life ? What will happen if it is kept in one experimental group, another animal in natural grazing condition and other one in stall fed condition?
Impossible to develop endoparasites after feeding larvae/egg free diet.
Endoparasites are of two forms: intercellular parasites and intracellular parasites.
Intercellular parasites are those that inhabit the spaces of the body of the host. Examples of intercellular parasites are nematodes, tapeworms, and other helminths. Helminths live in the gut of their hosts.
Intracellular parasites are endoparasites that live within the cell of the host. Examples of intracellular parasites are the protozoan Plasmodium, the causative agent of malaria. They thrive inside the cells of their human host. Plasmodium species have different stages in their life cycle. Within the definitive host (human), the sporozoite stage of Plasmodium species occurs within the liver cells where the sporozoite gives rise to a merozoite or to a hypnozoite, which then infects the red blood cell of the host.