Dr. Yuzhi Li University of Minnesota
Dr. Yuzhi Li University of Minnesota
Dr. Yuzhi Li University of Minnesota
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<strong>Dr</strong>. <strong>Yuzhi</strong> <strong>Li</strong><strong>University</strong> <strong>of</strong> <strong>Minnesota</strong>
Gestation Housing SystemsGestation Stalls Individual 2’ x 7’Group Housing Pens Varies inSizeFeeding system
Gestation Stalls
Gestation Stalls
Gestation Stalls vs. Group Housing Gestation Stalls AdvantagesIndividual feed intakeControl aggressionIndividual care DisadvantagesRestrict freedom <strong>of</strong>movement<strong>Li</strong>mit social interaction Group Housing Advantages Freedom <strong>of</strong> movement Social interaction Disadvantages Difficult to controlindividual feed intake Aggression Social stress (bully sows)
Options <strong>of</strong> Group-HousingBased on feeding system Floor feeding Feeding stalls Electronic sow feeder (ESF) Free-access stalls Trickle Feeding Stall-feeding station
Floor Feeding
Feeding Stalls
Electronic Sow Feeders
Free-Access StallsBy courtesy <strong>of</strong> Jennifer Brown, Prairie Swine Center, SK.
Trickle Feeding
Stall-Feeding Station
SummaryEach system has advantages anddisadvantages to sow welfare: Controlling over individual feed intake Minimizing aggression Allowing to perform natural behaviorAnimal welfare depends on not onlythe housing system, but alsomanagement. It is more challenging tomanage sows in group-housing than installs
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