Whole body exposure of chickens to UV-B radiation (0.5 J cm-2) resulted in the production of previtamin D3 (preD3) in the skin of the legs and feet (43 +/- 7 and 54 +/- 17 ng cm-2, respectively), whereas no preD3 was detected in the back skin.
the 7-dehydrocholesterol concentrations are 10-fold higher in nonfeathered skin areas including the legs
Opmerking