TULARE, Calif. – Officials at J.D. Heiskell Holdings have taken steps to strengthen the company's animal-welfare practices following the release of an undercover video depicting workers abusing calves at Quanah Cattle Company in Kersey, Colo. J.D. Heiskell Holdings is a joint venture partner in Quanah Cattle.

The Weld County Sheriff's Office cited three workers at Quanah Cattle Company and the videographer, Taylor Radig for misdemeanor animal cruelty. Compassion Over Killing submitted the video to the sheriff's office on Nov. 12. Sheriff John Cooke said the investigation is ongoing.

Scot Hillman, chairman of the board, previously stated the company was "dismayed" by many of the images in the video.

"We learned about the incident at the same time the rest of the world did," Hillman said. "We took immediate corrective action and terminated the three individuals seen in the video. We are now focused on re-training employees and taking care of our animals. We have engaged a third party, animal-handling expert to do training for our employees at the facility and have implemented an animal-care code of conduct that all employees must read and sign prior to working."

Radig, a contractor for Compassion Over Killing, and former Quanah workers Larry Loma, Ernesto Daniel Valenzuela-Alvarez and Tomas Cerda were each cited for a misdemeanor charge of animal abuse that could result in six to 18 months in jail and a $500 to $5,000 fine.