The CBS Evening News is set to air a story next week on antibiotic use in livestock and poultry production, according to The announcement was made on the Tribune Co.'s The Morning Call Web site.

CBS producer Ashley Velie said the segment, originally set to air this week, is rescheduled for sometime next week due to the network’s Haiti earthquake coverage.

The story will focus on CBS anchor Katie Couric’s visit to Koch's Turkey Farm in Tamaqua, Pa., which raises free-range and antibiotic-free turkeys.

The segment also may include footage on Applegate Farms, a New Jersey producer of antibiotic-free, ready-to-eat foods including deli meats, bacon and hot dogs.

CBS has been to Missouri, Iowa, Pennsylvania, Oklahoma and Denmark to research this story and is expected to focus on antibiotic use in pork and poultry production, according to industry groups that have been contacted by CBS.