Wool-growing s extending to the Continent became an important part of Japanese economic expansion.

A serial study of grazing ecology and digestibility and metabolism of sheep on alpine pasture Ⅲ The analysis of seasonal dynamics and the restrictive factors of the diet digestibility by grazing sheep;

A series of studies on ecology, nutrient digestion and metabolism of grazing sheep on alpine pastures:Ⅱ a new method for collecting urine of sheep during grazing;

The serial studies of ecological grazing and digestion and metabolism of sheep on alpine pasture Ⅰ The study of forage preference index of grazing sheep;