Performance and welfare of laying hens in conventional and enriched cages


Project Leader:  Dr. Jim House, Dept. Human Nutritional Science, University of Manitoba Email:
Dr. Bill Guenter (U of M), Dr. Nora Lewis (U of M), Dr. Juan Carlos Rodriguez-Lecdompte (U of M)


  • study results provided evidence that production, performance, egg quality and mortality of laying hens were similar between the two cage designs
  • incidence of dirty eggs increased with the enriched cage system
  • incorporation of perches in the enriched systems resulted in a higher bone density which may help to reduce fractures and osteoporosis at an older age
  • immunological measurements suggested that the stress level was similar in the two cage systems