Ward G M, Knox P L, Hobson B W
Science. 1977 Oct 21;198(4314):265-71. doi: 10.1126/science.561996.
A large percentage of the feed resources used in beef production cannot be used by man or most other animals. These noncompetitive feeds could be used in different ways to increase beef production, but fossil fuel consumption by the beef industry would not be greatly reduced.
牛肉生产中使用的很大一部分饲料资源人类或大多数其他动物无法利用。这些非竞争性饲料可以通过不同方式用于增加牛肉产量，但牛肉产业的化石燃料消耗不会大幅减少。
