Chicken processor Tyson Foods Inc. has spent hundreds of millions of dollars in recent years to build its own farms in China so that it can control the safety of its entire supply chain, from chicks hatching to the grocer's shelf. 鸡肉加工企业泰森食品有限公司(TysonFoodsInc.)近年来已斥资数亿美元在中国建立自己的农场,以便能控制从鸡的孵化到杂货商货架的整个供应链的安全。