By Dr. Jerry Shurson, University of Minnesota Department of Animal Science © 2019 Feedstuffs. Reprinted with permission from Vol. 91, No. 03, March 4, 2019 A variety of commercial feeder designs are used in commercial swine operations that have various advantages and disadvantages. Bergstrom et al. (2012) evaluated using conventional dry feeders compared with wet-dry feeders and various feeder adjustment openings on growth performance and carcass characteristics of growing pigs. Results from this study showed that pigs fed using the wet-dry feeders had greater average daily gain (ADG), average daily feed intake (ADFI), hot carcass weight and carcass backfat thickness than pigs fed using dry feeders. They also observed that the wet-dry feeder was more sensitive to differences in feeder adjustments compared with conventional dry feeders. In a subsequent study, Bergstrom et al. (2014) compared growth performance and carcass characteristics of growing/finishing pigs fed diets containing 2