Impact of Various Parity Groupings on Welfare and Productivity in ESF Housing
In a large herd with group housing and electronic sow feeding (ESF), there were significant benefits when younger sows (parities 1 and 2) were housed separately
rather than mixing them with older sows, according to a report by Y.M. Seddon, F.C. Rioja-Lang and J.A. Brown in the Prairie Swine Centre Annual Report 2013-14.