Tyson Foods says it's ending a contract with a central Oklahoma farm after an animal rights group says it videotaped workers at the farm abusing hogs.
Mercy For Animals distributed images of workers striking pigs and slamming piglets onto a concrete floor.
In one portion of the tape, a worker is shown throwing a bowling ball at a pig, striking it in the head.
The animal rights group and Tyson have identified the farm as West Coast Farms in Henryetta, Okla.
Phone calls to the farm have gone unanswered. Tyson spokesman Gary Mickelson says the company is "extremely disappointed" by the mistreatment shown in the video and that it won't tolerate the mishandling of animals.