Gapeworm can become so numerous they actually block the throat of an affected bird, stopping feed, water and eventually air from passing through, causing death. All types of poultry can be affected, including water fowl and game birds, especially pheasants.

How long does it take to kill Gapeworm?

Levamisole (Ergamisol), fed at a level of 0.04% for 2 days or 2 g/gal drinking water for 1 day each month, has proven effective in game birds. Fenbendazole (Panacur) at 20 mg/kg for 3–4 days is also effective.

How do you get rid of Gapeworm in chickens?

Treatment of Gapeworms in Birds

Ivermectin (Ivomec) and moxidectin (Cydectin) are used to treat gapeworm. If your birds have a heavy worm infestation, a strong dose can cause problems whereby if all the worms are killed at once, blockages in your bird's system may occur.