In 1973 during the Arab oil embargo, the costs for meat and bone meal tripled, but sale prices were frozen by a nationwide wage and price control issued by then-President Richard Nixon.
1973年，阿拉伯石油禁运危机期间， 肉类和骨粉的成本价格翻了三倍，但销售价格却因当时理查德·尼克松总统的全国性工资及价格管制政策而锁定住。