Each hectare (2.47 acres) of corn planted in the United States will yield enough utilizable protein to feed 12 people 60 grams of protein per day for one year.
在美国，每公顷(2.47英亩)种植的玉米，一年可以生产出足够给12人每天吃60g的可利用蛋白质。
Experiment 2. Effects of dietary fiber levels on dietary fibers and protein utilizable efficiency of emus.
试验二日粮纤维水平对鸸鹋日粮纤维及粗蛋白质利用率的影响。
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