Schaefer, A. L., Salomons, M. O., Tong, A. K. W. et al. 1987. The effect of environmental enrichment on aggression in newly weaned pigs. Canadian Journal of Animal Science 67, 1169 (Abstract).

The provision of enrichment object [tire hung from chains, pig-pacifier toy , teeter-totter ] reduced aggression among newly weaned pigs.

Year

1987