ABSTRACT
An increased intensification of animal production is needed so that worldwide hunger can be fought successfully and the ever-increasing human population can be supplied with animal proteins and animal-derived raw materials. The author considers parasitism to be an arrangement of species--different populations basing on somatoxenia, that is, a body to body contact-relation. Arthropods have an exceptional position within the animal kingdom because of: (1) the richness in species--out of the 1.26 million living species more than 1 million belong to arthropods, and nearly every 5th of these is a parasite! (2) their ability to live in all 3 elementary biotopes: on the continental, in the fluvial and in the oceanal; (3) their exceptionally high adaptability, and parasitic arthropods share this adaptability.
