Ascaridia galli (worms) - Poultry
Ascaridia galli (worms) - Poultry

How to spot and stop Ascaridia galli (roundworms) in chickens

Ascaridia galli is a common intestinal roundworm found in poultry. If left unchecked, it can cause poor growth, a noticeable drop in egg production, and general health issues throughout your flock.

Understanding how this parasite spreads and the steps you can take to prevent it will go a long way in keeping your poultry operation healthy and efficient.

ascaridia galli worm

Cause of Ascaridia galli (roundworms)

Ascaridia galli is a parasitic roundworm that sets up shop in the intestines of your chickens. These worms hatch from microscopic eggs passed in the droppings of infected birds. The eggs can survive in the litter, dirt, or on barn equipment. Healthy birds easily pick up the infection by eating contaminated feed, drinking dirty water, or simply pecking around in soiled bedding.

Once inside the bird, the worms mature in the gut and start causing real issues, including stunted growth, weight loss, and a noticeable drop in egg production. Young birds and flocks kept in crowded or dirty barns are at the highest risk.

How Ascaridia galli Spreads

Ascaridia galli spreads easily and is difficult to recognize.

  • Ingesting eggs: Birds pick up microscopic worm eggs from contaminated feed, water, or soiled litter.
  • Poor barn hygiene: Skipping a thorough clean and disinfection leaves eggs behind.
  • Overcrowding: High bird density increases the chances of birds coming into contact with infected droppings.
  • Pests: Wild birds, rats, and mice can track parasite eggs straight into your facility.
  • Reused bedding: Leaving old, dirty litter in the barn gives the worm eggs a perfect place to survive and infect the next flock.
transmission-ascaridia-galli

Symptoms of Ascaridia galli

How do you know if your birds are infected? Watch out for these signs:

ascaridia galli symptoms
  1. Reduced appetite
  2. Slower growth
  3. Dull feathers
  4. Weight loss
  5. Diarrhea
  6. Reduced egg production

Prevent poultry from Ascaridia galli with these tips

Hygiene protocols
1

Hygiene protocols

Stick to a routine cleaning and disinfection schedule for the barn, making sure to hit the floors, walls, feeders, drinkers, and equipment. Use a proven disinfectant that actually kills parasite eggs to keep the environment clean.How to clean and disinfect a poultry barn
Clean water supply
2

Clean water supply

Keep up with regular maintenance to stop biofilm from building up in your water lines and drinkers.More about water treatment
Deworming
3

Deworming

Work with your poultry vet to set up a solid deworming program. Rotate your active ingredients to stop the worms from building resistance, and consider giving your birds some extra liver support during or right after treatment.
Pest control
4

Pest control

Keep a tight pest management plan in place to keep mice, rats, wild birds, and insects out of the barn. These pests are notorious for dragging parasite eggs straight into your flock.Learn more about effective pest control

Experts recommend

MS MegaDes Para is a special disinfectant for combating oocysts (eggs) of parasites and worms, including the parasites causing coccidiosis or Blackhead Disease in poultry.
Teun van Dijck
Poultry Specialist

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