Retail warehouse chain Costco released a statement this afternoon saying it will no longer carry pork products from Iowa Select Farms, whose alleged gruesome practices were captured on an undercover video released Wednesday by animal rights group Mercy For Animals.

Costco now joins Kroger and Safeway (the parent company of Dominick's) in halting purchases from the farm, whose animals are depicted getting slammed on the floor, thrown around and left with organs hanging out of their bodies. The graphic video also documents piglet castration and tail clipping without the use of anesthesia.

Costco told the Tribune this afternoon that “we have no business relationship with Iowa Select," which is the fourth largest hog producer in the nation.

But its supplier JBS Swift did.

That was until earlier this week when, according to a just-released Costco statement, JBS Swift “immediately stopped all purchases from that farm, and will not buy any animals from them until a complete study is done to ensure that all humane protocols are being precisely implemented. We encourage and support that decision, and will insist on proof through an ongoing audit that all such humane procedures are being followed."

The video was released as Iowa considers a law to make photographing and videotaping of concentrated animal feeding operations a felony.

(Warning: This video contains disturbing images)