Cause

Control

Roundworm infestation of the intestinal tract. Roundworms migrate from the cloaca into the oviduct, where they may be enclosed in the egg.

Protect the flock from serious worm infestation by:
• feeding a well-balanced diet.
• preventing fouling of feed and water.
• keeping birds off fouled or damp ground or litter.
• regularly and thoroughly cleaning and disinfecting the poultry house.
• keeping chickens separate from adult birds.
Rearing and housing birds on wire reduces worm infestation.
Deworm pullets before caging and treat layers if necessary. Check cull birds for roundworms. This will give an idea of the incidence of infestation in the flock.