Worms and chickens
Ectoparasites are found on the outside of your chickens - an example being lice or mites. Endoparasites on the other hand are found on the inside of your birds body and are referred to as Helminths in the veterinary world which is a term used to cover a wide range of internal parasites or 'worms' as we commonly call them.
The most important group of worms that concern us are called Nematodes. These worms inhabit various parts of the digestive tract and are listed below. All of the worms listed are part of this group, with the exception of Tapeworms which are part of a group called Cestodes.
The following types of worms can be found in poultry:
Hair worm - Found in the crop, oesophagus, proventriculus and intestine. Also called Capillaria.
Roundworm - Found in the birds digestive system.
Gizzard worm - Found in the gizzard, mainly in geese. A common problem for goslings.
Tapeworm - Fairly uncommon, found in the intestine.
Gapeworm - Found in the trachea and lungs.
Caecal worm - Cause little damage but transmit blackhead to Turkeys.
Worming chickens is important because most infections of these worms can cause damage and eventually death. So let's look at the lifecycle of these worms to understand them a bit more.