Page 32 of articles about behaviour-welfare

Pre-weaning mortality (especially crushing by the sow) is higher in piglets raised in a multi-litter (ML) system until 9 weeks of age than in piglets raised in a single-litter (SL) system.

Our results suggest that at least at the chosen stocking densities, parity and space allocation have minimal effect on a number of commonly-used welfare measures.

Results of the present study revealed that behavioural patterns that are established when suckling reappear when forced to form a new dominance hierarchy after weaning.

It appears that nest-building behaviour in prepartum sows could be enhanced by the provision of nesting materials. This, coupled with elevated oxytocin and prolactin concentrations, could result in improved postpartum nursing performance and maternal behaviour in early lactating sows.

This is the first study indicating a link between brain neurotransmission and tail biting behavior in pigs.