Figure 1From: Exogenous estradiol improves shell strength in laying hens at the end of the laying periodBreaking strength of leg bone (femur) tested by three-point bending, load at failure (Newton), from Lohmann Selected Leghorn (LSL) and Lohmann Brown (LB) hens (n = 20) at the end of a laying period. Results are expressed as LSmean ± SE. **(P < 0.01).Back to article page