Colorful balls
Enrichment type:
Items Required:
colorful ball

Colorful Balls

Research conducted by Sherwin 1995 found that brightly colored spherical objects [balls 4-9 cm in diameter] placed in the feed trough are considered to be a promising method of successful environmental enrichment [simulating ground-litter] for caged laying hens. Access to enrichment items (e.g., corks, buttons, balls) can reduce the incidence of cannibalism in young birds (Yasutomi et al., 1987).


  1. Sherwin, C. M. 1995. Environmental enrichment for laying hens - Spherical objects in the feed trough. Animal Welfare 4, 41-51.
  2. Yasutomi, M., Adachi, N. 1987. Effects of playthings on prevention of cannibalism in rearing chickens. Japanese Poultry Science 24, 372-373.