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Pig Journal Volume: 52
Publication date: November 2003

Proceedings Section

NON-RESTRAINT FARROWING SYSTEMS: AN INDUSTRY APPROACH
T.A. Jones, E.J. Hunter, P. Johnson and J. Guise

Abstract
The production performance of 830 sow lactations through seven different farrowing systems on one commercial site was studied to assess the feasibility of commercially available individual non-restraint systems; no group farrowing systems were included. There was no difference in sow weight, P2 (mm) and body condition on entry to and exit from the farrowing accommodation, or in numbers born alive per litter and litter weight. Farrowing systems significantly affected piglet mortality, cause of mortality, growth rate and numbers weaned. The best and most consistent performing system was the crate with fully slatted floor. Non-restraint systems with fully slatted floors, i.e. hinge crate and VIP, performed next best, and non-restraint systems with straw performed the worse.

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