sows resting in group pen Jevtic/iStock/Thinkstock

N&H TOPLINE: Genetic selection may help sow groupings

Michigan's new animal housing regulations require sows to have ample space to turn around freely. Michigan State University researchers want to know how to group animals to live together harmoniously.

Growing concern over the welfare of agricultural animals has led many states to pass legislation that mandates a fresh set of care practices. California did so in 2008, and many others have followed suit.

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