It was hypothesized that the lack of a homogeneous light intensity in multitier systems and each cage location m semiconfined laymg hen houses adversely affects egg production and quality (Yildiz et al., 2006). Grover et al. (1972) reported a significantly higher hen clay production and feed consumption in the upper tier of a Two-Tier System, production showed a non-signifacant opposite trend. Hurnick et al. (1974) reported that eggs for hens in an upper tier were significantly heavier and production was somewhat higher than for hens in lower tier. In contrast, Sefton (1 976), measurmg egg production m 60-64 weeks old birds, observed significantly higher production among the lower tiers.