Results
The performance characteristics (Table 2) were
significantly (P < 0.001) influenced by the housing
system. The highest hen-day egg production was
recorded from the enriched (92.2%) and conventional
(91.3%) cages, compared with the litter
housings (79.8%) and aviaries (71.8%). The housing
in the enriched cage and alternative systems (aviary
and litter) increased the feed conversion ratio