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Dim light does not reduce fighting or wounding of newly mixed pigs at weaning


, : Dim light does not reduce fighting or wounding of newly mixed pigs at weaning. Canadian Journal of Animal Science 76(1): 141-143

Pigs weaned at 27 d were mixed into groups of nine and exposed to constant illumination of 5 or 100 lx. Behavior was categorized every 10 min for 72 h and all fights were counted. Eating, drinking, lying and fighting patterns were similar in both light groups. The peak number of fights occurred 18-24 h post-weaning, concurrent with the major feeding episode. Ears and shoulders were scored for wounds 1 and 4 d after weaning; light intensity did not affect (P gt 0.50) wound scores.

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