“Animals that are raised in feedlots are given diets that are specifically designed to fatten them up, which help the farm boost productivity and lower costs. Genetically modified grain and soy are the main components of these animals’ diets. To cut costs even more, animal feed may also contain by-products such as municipal garbage, stale pastry, chicken feathers and candy.
When animals are raised in confinement, they deposit large amounts of manure in small spaces. The right thing for the farmers to do is to collect and transport this manure far away from the area; however, this can be a very expensive task. More increasingly, farmers collect the manure and to cut costs, dump it as close to the feedlot as possible. As a result, the soil becomes over packed with nutrients, which can lead to ground and water pollution.”
Taken from http://www.nwhealth.edu/
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