Sectional composition of minerals in domestic deer antler

摘要

The mineral compositions were analysed of the tip and the upper section of dried domestic antlers. The upper section was divided longitudinally into four parts. The tip and the upper section were divided traversely into the velvet and the spongy hone layers. The contents of ash, calcium, phosphorus and magnesium increased (p<0.05), and those of manganese, zinc, copper and iron decreased (p<0.05) downward from the tip both in the velvet and the spongy bone layers. The contents of ash, calcium, phosphorus, manganese and zinc of the spongy hone layer were significantly (p<0.05) higher than those of the velvet layer. The tip, which is the growth center of the antler, had the significantly (p<0.05) lowest proportions of Ca/ash, Ca/P and Ca/Fe ratios both in the velvet and spongy bone layers.