When they started researching thesupplychain, they learned that only 2-3% of all bison is actually grass-fed.
当他们开始研究供应链时，他们发现实际上只有2%到3%的野牛是食草的。
2
In less-developed countries, such as those of sub-Saharan Africa and South-East Asia, wastage tends to occur primarily at the farmer-producer end of thesupplychain.