Overweight Chickens

The risk of obesity is highest in inactive chickens maintained as pets that are overfed with energy-dense food (like chicken treats and table scraps).

Some breeds have a tendency to gain excess weight, especially the New Hampshire, Plymouth Rock, and other dual-purpose breeds.

Signs of obesity include:

  • Poor laying
  • Poor shell quality
  • Egg laying at night
  • Recurring double yolks
  • Prolapse

In addition to having poor egg production, fat hens are more prone to heatstroke and reproductive issues.

Check the region below the vent to see if a chicken is overweight. The hen is overweight if this area is dimpling and bulges.