Can Tibetan herdsmen eat vegetables in the 197s?

In the 197s, herdsmen in Tibetan areas seldom ate vegetables, and beef and mutton were the main non-staple foods, followed by pork. Tibetans pay attention to freshness when eating beef and mutton. People don't use chopsticks when eating meat, but put large pieces of meat into a plate and cut it with a knife. The blood of cattle and sheep is added with chopped beef and mutton and poured into the small intestine of cattle and sheep to make blood sausage. Vegetables are very common on herders' tables now.