大部分养猪和鸡的农场都没有认识到一小窍门，动物是吃以粮食为基础的饲料。
Most pig and chicken farms are missing a trick here, since the animals eat commercial, grain-based feeds.
其它因素也让粮食价格得到了抑制。从事畜牧业的农民正用便宜的饲料代替小麦喂养家禽。较低的石油价格消减了运输成本同时降低了以粮食为基础的生物燃料的需求。
Other factors should dampen prices, too. Livestock farmers are substituting cheaper feedstocks for wheat. The oil price is lower, cutting transport costs and demand for grain-based biofuels.
目前，生产和供应粮食所需要的高达70%的能源以矿物燃料为基础，而它们促进了气候变化。
Up to 70% of the energy needed to grow and supply food at present is fossil-fuel based which in turn contributes to climate change.
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