Your animals may appear to be normal to you but in fact they may be carrying a large number of parasitic worms inside their stomach or intestines. Infective stages of the common parasites survive for a long time in the environment and after treatment reinfection occurs frequently. It is therefore important to give routine treatment against the common worms. Description Worms are classified as helminths and they are parasites that live inside their host's body. They are therefore known as endoparasites.
Worms have a life-cycle which involves stages outside the main host.
The distribution of parasites in our domestic animals varies worldwide depending upon many factors including climate. W hipworm Trichuris spp. Signs Animals with parasites may show no signs at all. However, if a host has a large number of worms it may find it difficult to maintain body condition and it will lose body weight. Occasionally heavy worm burdens can cause death.