以下是视频中的一个阅读材料上半部分,请翻译成中文: Consider the food served in Kentucky Fried Chicken (KFC). A typical KFC restaurant consumes about 1000 chickens a month. It seems the logistical flow starts in the chicken farms. The chicken are caught in the farm at 11 pm under blue light, a light in which chicken cannot see. They are trucked to chicken processing mills, where they are killed, dressed and frozen. Then they are taken to warehouses to be stored for later use.