Last year Nicholas Kristof published a disturbing column - disturbing even by Nicholas Kristof standards - on an undercover video from the Humane Society of the United States of a Kentucky pig outfit named Iron Maiden Farm (yeah, really). The operation - a typical embodiment of Big Agriculture - was caught feeding a slush of piglet intestines to sows in order to establish immunity against a devastating disease called porcine epidemic diarrhea (PEDv). This technique, "controlled exposure," is "widely accepted," according to the Kentucky Livestock Coalition. Lovely.
The virus broke out last May in Iowa and has killed over three million pigs nationwide. As a way to avoid this intestine-based smoothie, Kristof urged consumers to forgo factory-farmed pork in exchange for pork produced by small farms. He sites the well-known Niman Ranch as an example. In other words, just buy your pork from the right places.
This advice seems perfectly sensible-and in many cases involving porcine disease it would be. Swine consolidation can enhance the spread of certain pathogens. However, in the instance of PEDv, the connection between farm size and disease is tenuous at best. Small farms, according to many experts I've spoken with, turn out to be every bit at risk of getting hit with an outbreak of PEDv as large ones. "This virus doesn't discriminate," says Dr. Russ Daley, a South Dakota State University Extension Veterinarian with whom I spoke the day after the HSUS expose dropped. In fact, Daley had recently spoken with a family farmer with 40 to 50 pigs who experienced a deadly outbreak of PEDv.