There are several important types of worms or helminths as they are scientifically known in poultry production, that farmers need to know about. These worms are generally divided into two groups, Nematodes, which are generally rounded in shape. They measure between 10-50mm in length and are 1-3mm in thickness. Some need intermediate host to survive and they generally cause damage in the intestines of chickens and other types of birds. Members of these group include Ascarids, Capillaria, Heterakis and Syngamus. The other group is referred to as Cestodes, also known as tape worms. They are much longer, measuring 50-150mm, thinner and are more destructive to their host. Members of this group include Davainea and Raillietna.
1. Round worms (Ascarids)