Date Full Report Received


Date Abstract Report Received



Primary Investigator:

These data provide scientific support that the type of individual stall a sows is housed in for the 1st 30 days prior to being moved to group pen or throughout gestation can impact sow immune status, behavior, body weight gain and loss, and litter traits.  Sows housed in standard gestation stalls had a different immune status than did sows housed in turn-around stalls—for the most part—sows housed in standard stalls had a more stimulated innate and adaptive immune status (or more balanced immune response) than did sows housed in turn-around stalls.  In fact, sows that were housed in a standard stall prior to being housed in a pen had a more stimulated immune status at d 90 of gestation than did sows that were previously housed in a turn-around stall. Sow body weight gain throughout gestation was greatest among sows that were housed in pens regardless of the previous stall environment.  However, sows housed in stalls throughout gestation loss less body weight at the end of lactation than did sows housed in group-pens—with those sows being housed in a standard stall and then moving to group pen losing the most body weight at end of lactation.  Despite those sows being housed in pens from d 30 till d 110 of gestation gaining the most body weight, sows housed in standard stalls throughout gestation loss the least amount of weight and had better litter performance traits.  Based on all measures of well-being these data support that the best housing environment or management strategy may be housing sows in standard gestation stalls throughout gestation or in turn-around stalls for 30-days and then moving them to pens for the remainder of gestation. The worse housing environments or management strategies based on measures of well-being are housing sows in turn-around stalls throughout gestation or housing sows in standard stall and then moving to pen.