This study documents differences in pig crushing mortality rates in various outdoor farrowing hut types. Larger huts with the door in the corner and space for piglets to stay away from and protected from the sow had lower crushing losses. Mothering ability by the sow may be particularly important in outdoor systems where the sows have greater freedom and mobility
Iowa State University
Honeyman, Mark S.; Roush, Wayne B.; and Penner, Arlie D., "Piglet Mortality in Various Hut Types for Outdoor Farrowing" (2000). Swine Research Report, 1999. 30.