Effects of Housing Grow-Finish Pigs in Two Different Group Sizes and Two Different Floor Space Allocations
By Brandy Street and Harold Gonyou and published by the Prairie Swine Center - Past studies on small groups (10-40) of pigs have found a negative impact of crowding on productivity and welfare. Studies examining groups of greater than 40 pigs per pen have found setbacks in the growth rate of pigs soon after mixing. Research into the effects of crowding on grow-finish pigs housed in large groups is minimal, although it has been suggested that pigs housed in large groups may be able to use space more efficiently.