Weaning is the most abrupt day of a piglet's life: milk, mother and the only social group it knows all change at once. Piglets that come through it well tend to share two things — they stay with their littermates, and their new pen gives them room to eat, rest and play without having to compete for any of the three.
Companionship: the litter stays together
A piglet should never be weaned alone. The litter group is its security, its playmates and its mealtime company all in one familiar package, and piglets moved as a group settle, eat and sleep sooner than any piglet separated from its siblings. If litters must be mixed, do it at weaning rather than a week later, and expect a day of squabbles while a new order forms. A single piglet kept on its own will call, refuse feed and fail to thrive at a rate that surprises people — for pigs, company is not enrichment, it is infrastructure.
Space to eat, rest and get out of the way
Crowding shows up first at the feeder, so space means feeder space as much as floor space: every piglet should be able to eat at the same time, or feed should be spread widely enough that the boldest cannot guard it. The pen needs a warm, dry, draught-free lying area big enough for the whole group to sleep side by side, plus open floor beyond it for movement and play. Leave enough room for a pushed piglet to actually leave — a cornered piglet escalates fights it would rather walk away from. Solid partitions between new groups for the first days reduce fighting through the bars while neighbours become familiar.
Something to do with a rooting brain
Weaned piglets rootle, chew and investigate for most of their waking hours, and a bare pen turns that energy onto penmates' ears and tails. Deep straw to root through, a chain or toy to mouth, and a little feed scattered to forage for all redirect the behaviour onto things that cannot be injured. Rotate or refresh what you offer — novelty is the point. Watch for the damaging kind of redirection anyway: a piglet that starts biting tails is usually reporting that the group is crowded, bored, hungry or uncomfortable, and the cause needs finding, not just the piglet moving.
The first week: what settling looks like
Expect a noisy first day, then a pattern: eating together, sleeping in a pile in the lying area, and bouts of play. Weigh or condition-check a few of the smallest piglets across the first week, because the ones that fall behind after weaning are usually the ones that were already smallest at it. A piglet that stays off feed beyond the first day, coughs, scours, or is being kept from the feeder by the group needs attention — and if it is not eating and bright within a day of being given space and quiet, a farm vet should hear about it.
Making the daily weaner round a KinsLe Care Teams duty — feeder space checked, straw refreshed, the smallest piglets looked at by name — keeps the post-weaning week under someone's eye every single day.