Weaning is the single most stressful week in a young pig's life, and how you feed weaned pigs in those first days sets the tone for the whole grow-out. One day the little pig is nursing warm milk on demand; the next it's separated from the sow, moved to a new pen, mixed with strangers, and expected to eat solid feed from a trough. That's a lot to ask of a gut that's still developing.
Get the start right and weaned pigs bounce back quickly and grow strong. Get it wrong and you're chasing scours, poor gains, and light pigs for weeks. The good news is the playbook is straightforward: a palatable, highly digestible starter, feed that's always fresh and available, gradual ration changes, clean water, and a warm, low-stress pen.
Why the Newly Weaned Pig Needs Special Care
A nursing pig's digestive system is set up to handle milk. At weaning it has to shift to processing grains and plant proteins, and the enzymes and gut lining need a little time to catch up. Add the stress of the move and pigs often go off feed for a day or two right when they can least afford to. A drop in intake can thin the gut lining and open the door to digestive upset.
That's why the first feed after weaning should be as close to easy as it gets — highly digestible, palatable, and formulated for a small pig's still-developing gut.
Start With a Palatable, Highly Digestible Starter
Offer a quality pig starter feed designed for freshly weaned pigs. These early diets are built to be gentle and appealing so pigs get eating fast. A few habits help them take to it:
- Feed little and often at first so there's always fresh feed in front of them and none sitting to go stale or sour.
- Keep feeders clean — pigs are fussy and won't dig into fouled or moldy feed.
- Make sure every pig can reach the trough so shy pigs aren't crowded out by the boss pigs.
Getting pigs eating within the first day is the whole ballgame. A pig that keeps eating keeps its gut healthy.
Phase-Feed As They Grow
Just like poultry, pigs do best on a stepped program. The very first diet is the richest and most digestible because the pig is smallest and most vulnerable. As pigs get bigger and their guts mature, you move them onto progressively simpler, more economical diets that still meet their needs.
- Early starter — the first days to weeks post-weaning; most digestible and palatable.
- Later starter / grower — as intake climbs and the gut settles, transition to the next diet.
- Continue stepping through grower rations as they head toward market or breeding size.
Make Every Ration Change Gradual
Nothing brings on scours faster than a sudden feed switch. A young pig's gut needs time to adjust to a new formula, so blend the old and new feed over several days rather than flipping overnight.
- Days 1–2: mostly the old feed with a little of the new mixed in.
- Days 3–4: roughly half and half.
- Days 5–7: mostly new feed, then all new once they're eating it well.
If pigs get loose or go off feed during a change, slow down and hold at the current mix a few extra days before moving on.
Clean Water, Always Available
Weaned pigs won't eat well if they can't drink well, and dehydration makes scours worse in a hurry. This is doubly true in our Southeast summers.
- Provide clean, cool water free-choice at all times.
- Check that nipple drinkers or bowls are at the right height and flowing well — a clogged or too-high drinker means pigs quietly go short.
- Show timid pigs the water source the first day; some need to learn where it is.
A Warm, Clean, Low-Stress Pen
Young pigs chill easily, and a cold pig is one that huddles instead of eating. Keep the pen draft-free with a warm, dry, comfortable lying area. Bedding or a heat source in cool weather makes a real difference in intake. Even in summer, a clean, dry pen keeps stress and disease pressure down.
Beyond warmth, keep stress low overall: minimize mixing groups, handle pigs calmly, and give them a day to settle before piling on more changes. Watch for the good signs — pigs up and active, full-looking bellies, firm manure, and steady weight gain.
Warning Signs to Watch
- Watery or discolored scours, especially spreading through the pen
- Pigs off feed, gaunt, or humped up and shivering
- Sunken eyes or listlessness pointing to dehydration
If scours take hold or pigs stop eating, loop in your veterinarian early — the sooner you act, the less ground you lose.
The takeaway: baby the weaned pig for the first week or two. Keep fresh, digestible starter in a clean feeder, change rations slowly, keep clean water in front of them, and give them a warm, calm pen. Nail that start and the rest of the grow-out takes care of itself. Need a starter matched to your setup? Find a Mid South Feeds dealer nearby.