Bone Implantation as a Means of Studying Vitamin D Action

Abstract
Previous in vitro investigations indicate that vit. D exerts its influence on the environment from which bone receives its mineral. The present investigation tests the above observations with in vivo studies using implanted tibiae on 2-week-old rachitic and non-rachitic chicks. This implantation technic could be advantageously employed in the study of the calcification mechanism.