This story was originally published by the Sentient. When Brent Hershey entered the hog business, he was told that every pork producer in America uses gestation crates on their farm. Gestation crates are metal enclosures, typically seven feet long and two feet wide, where a pregnant female pig, a sow, is kept during her pregnancy. The stalls are so small that sows typically cannot sit or lie down for four months – the entirety of their pregnancy while in the stall. And these gestation crates, long a fixture in industrial pork production, are at the center of a fierce debate between industry groups and the hog farmers who say they don’t want to go back to using them.