Figure 1.

Effect of different rapeseed oil sources and levels on eggshell color b value, eggshell thickness, albumen height, and Haugh unit at 4 wk. A, The b value was higher (P = 0.015) in DH and ML treatments than MH and DL groups at 4 wk. B, The eggshell thickness was lower (P < 0.01) in ML group than other groups at 4 wk. C and D, Supplementation of MH decreased (P < 0.01) albumen height and Haugh unit than other sources at 4wk. E, The b value was higher (P = 0.04) in 4% level than 2% level groups at 4 wk. Values are means ± SEM (n = 8). The a, b, and c means every bars without same letter differ significantly (P < 0.05).