The effects of different spacing allowances in the pullet phase on the eggshell and bone quality of hens in the laying phase

Eggshell and bone quality were investigated in 72 weeks of age (WOA) Lohmann Brown Dekalb White raised at rearing spacing allowance (SA) 247 299 cm2/bird from day 0 to 16 transferred common SA (755 cm2/bird) for lay cycle. thickness (EST), breaking strength (ESBS), along with tibia femur weight, (BS), length, ash measured WOA. Strain did not interact on any above parameter (P > 0.05). Hens reared high during the pullet phase had heavier more ash, indicating environment influence hens late laying stage (P<0.05).