Today's commercial farms do not fit the image that comes to mind while happily singing along to “Old McDonald”. Instead, most of the nation's food comes from CAFOs, Confined Animal Feeding Operations, where animals are kept in tightly enclosed conditions as they are fattened up and readied to be killed for food.
Fortunately, knowing exactly where one's food comes from has led to an increase in the availability of what is known as “grassfed” beef. Technically, all cattle are grassfed for at least a limited amount of time, but what makes the meat significant is that it is grassfinished, not forcefed corn, soy or grains. This change in diet makes all the difference since corn is not part of the cow's traditional diet, and therefore causes major health issues for it. To deal with the health issues, antibiotics (抗生素) are used and some of the antibiotics used to treat the cattle are similar to those given to humans, so they can decrease the effectiveness of medicine when a consumer is sick.
A healthier diet for the cattle leads the meat to lower in both fat and calories. And when cooking grassfed beef, you'd better use a slightly lower temperature to make it more delicious.
文章大意:本文是一篇议论文。为了应对机械化农业的弊端,越来越多的小农业开始兴盛起来了,它们生产的农畜牧产品不仅丰富了人们的一日三餐,同时也更绿色、更健康。
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