He explains that Tibetans use yaks for transport, yak droppings for fuel, yak milk to make cheese and butter, and yak wool for tents and insulated ponchos. When yaks die, they use them for meat, as well. But these uses are all traditionally self-supporting and have not been developed into modern economic value.
黃效文解釋，藏人利用犛牛運輸、拾牛糞當燃料、擠奶製成奶酪和酥油、編織犛牛毛當帳幕及禦寒斗篷，直到犛牛死後再食用牠們的肉，可是這種利用方式還是傳統自給自足式的，並未發揮犛牛的現代商業價值。