Figure 1–Effect of dietary cholecalciferol level on the cholecalciferol con- tent in egg yolk during a 40-wk feeding period (diet 1 (control), 2200
IU cholecalciferol/kg of feed; diet 2, 9700 IU cholecalciferol/kg of feed;
diet 3, 17200 IU cholecalciferol/kg of feed; diet 4, 24700 IU cholecalcif- erol/kg of feed; diet 5, 102200 IU cholecalciferol/kg of feed). The error bars represent standard deviations (n = 4).