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Tryptophan-enriched diet reduces pig aggression
Date:3/18/2010

acked the intruder, and those that did attack were slower to do socompared with the animals that didn't get the supplement.

Pigs form social groups that, over time, form stable hierarchies or "pecking orders." However, when new individuals are introduced, aggression is used to re-establish a new hierarchical order. If repeated changes in group composition occur, persistent aggression may arise, sometimes leading to physical injury and acute stress. A tryptophan-enriched diet may help producers avoid these problems, especially when groups of pigs are mixed together.


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Contact: Sharon Durham
Sharon.Durham@ars.usda.gov
301-504-1611
United States Department of Agriculture-Research, Education, and Economics
Source:Eurekalert

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