赤狐华南亚种与东北亚种上毛髓质指数的比较研究

选取赤狐华南亚种和东北亚种8个部位上毛，用测试格测定上毛的髓质指数。结果表明，赤狐华南亚种和东北亚种上毛髓质指数在同一亚种的不同部位及亚种间差异极显著（P〈0．01）。无论在总体平均值上，还是在不同亚种个体同一部位上，赤狐东北亚种上毛的髓质指数均大于华南亚种。两亚种躯干部上毛髓质指数的平均值均明显大于前肢。这种差异性表现为从前肢末端到动物体躯干部呈梯度递增，其递增梯度在两个亚种的个体中表现有同步变化的趋势。

Comparative Study on Medulla Exponent of Upper Hair between South and Northeast Subspecies of Vulpes

After choosing upper hair of eight positions from the south and northeast subspecies of Vulpes,we tested its medulla exponent by using test lattice.The result indicated that there existed significant difference between different positions of the same subspecies and between different subspecies(P<0.01).The medulla exponent of upper hair of northeast subspecies was bigger than that of the south either in total average or in the same position of different subspecies.The average of medulla exponent from the bodies of two subspecies was also bigger than that of their forelegs.The difference increased progressively from the end of the foreleg to the body of Vulpes. The individuals of these two subspecies had the same gradient increasing tendency.