A dying piglet almost always needs three things fast: warmth, energy, and help getting to a teat. Most piglet losses happen in the first 72 hours of life, and the causes are usually hypothermia, low blood sugar, dehydration, or a combination of all three. If you act quickly, many weak piglets can be turned around. Here’s how to assess what’s going wrong and what to do about it.
Warm the Piglet First
Newborn piglets have almost no body fat and lose heat rapidly. A chilled piglet becomes too weak to nurse, which makes its blood sugar crash, which makes it even colder. This spiral kills fast. Piglets need a surface temperature between 30 and 44°C (roughly 86 to 112°F) to stay in their comfort zone, and the room itself should be at least 25°C (77°F) during and after farrowing.
If the piglet feels cold to the touch, especially around the ears and legs, warming is your first priority. A heat lamp is ideal, but you can also use a warm towel from a dryer, a heating pad set to low or medium (with a towel barrier to prevent burns), or even tucking the piglet inside your shirt against your skin. For severely chilled piglets, some farmers use a warm water bath: hold the piglet in water around 100°F (38°C) with its head above the surface, then dry it thoroughly. Don’t try to feed a piglet that’s ice-cold. Its gut can’t absorb nutrients until its core temperature comes back up, so spend 15 to 20 minutes on warming before moving to feeding.
Get Colostrum Into the Piglet
Colostrum, the thick first milk a sow produces, is the single most important thing a newborn piglet needs. It delivers antibodies, energy, and fluid all at once. Piglets that consume less than about 250 grams (roughly 8 to 9 ounces) of colostrum have mortality rates four to six times higher than piglets that get enough. Most piglets take in two-thirds of their total colostrum within the first 12 hours, so every hour counts.
If the piglet is too weak to latch on its own, try holding it to one of the sow’s front teats (these tend to produce more milk) and gently expressing some milk onto its lips. If the piglet still won’t suckle, you’ll need to feed it by hand. Collect colostrum from the sow by hand-milking into a clean container. Use a small syringe (without the needle) to drip colostrum into the side of the piglet’s mouth, going slowly so it doesn’t choke. Give small amounts, around 10 to 15 mL at a time, every 30 to 60 minutes.
If the sow has no colostrum available, frozen colostrum from another sow is the next best option. Goat colostrum can work in a pinch. Commercial pig milk replacer is a last resort since it lacks the antibodies, but it still provides critical energy and fluid.
Treat Low Blood Sugar Immediately
A piglet that’s limp, unresponsive, or shaking often has dangerously low blood sugar. You can give a quick energy boost with a small oral dose of a sugar solution. A practical approach: use corn syrup, honey (for pigs, not human infants), or a 50% dextrose solution dripped into the mouth. Around 10 mL of a 50% dextrose solution provides about 5 grams of sugar and 17 calories, enough to give a small piglet (around 1 to 1.5 kg) a meaningful boost. If you don’t have dextrose, a few drops of corn syrup or sugar water rubbed on the gums can buy time. This isn’t a substitute for milk. It’s a bridge to keep the piglet alive long enough to start nursing or taking hand-fed colostrum.
Rehydrate a Scouring Piglet
Diarrhea (scours) is one of the most common killers of young piglets. The usual culprits are E. coli, Clostridium perfringens, and rotavirus, often hitting within the first few days of life. The diarrhea itself isn’t always what kills. It’s the dehydration that follows. A scouring piglet with sunken eyes, dry skin that stays “tented” when you pinch it, or a hollow look to its belly needs fluids right away.
You can make a basic oral rehydration solution at home: dissolve about 3.5 grams of table salt (roughly half a teaspoon) in one liter of clean water, then add a tablespoon of sugar or honey as an energy source. Give this in small amounts by syringe, 10 to 15 mL at a time, multiple times throughout the day. The goal is frequent small doses rather than one large feeding, since a sick gut absorbs small volumes much better.
If scours are spreading through the litter or the piglet has a fever, bloody stool, or isn’t improving with fluids alone, you’re likely dealing with an infection that needs veterinary treatment. Antibiotics are sometimes necessary, but the specific choice depends on the pathogen involved, so a vet’s input matters here.
Tube Feeding as a Last Resort
If a piglet is too weak to swallow, tube feeding can save its life, but it carries real risk if done incorrectly. You’ll need a soft, flexible piece of polyethylene tubing about 40 cm long and 6 mm in diameter, with a smooth end. Before inserting it, hold the tube alongside the piglet’s body with one end at its mouth and the other reaching its last rib. Mark that length on the tube so you know how far to insert.
Gently pass the lubricated tube over the piglet’s tongue and into its throat. If the piglet coughs or struggles, you may be in the airway. Pull back and try again. Once the tube is in place to the marked depth, slowly push a small volume of warm colostrum or milk replacer through the tube using a syringe. A newborn piglet should receive about 10% of its body weight in colostrum over its first 24 hours, broken into frequent small feedings of around 10 to 15 mL each. After feeding, pinch the tube before withdrawing it to prevent fluid from dripping into the lungs.
Check for Anemia
Piglets are born with very low iron stores, and sow’s milk doesn’t supply nearly enough. Without supplementation, piglets become anemic within days, showing pale skin (especially around the ears and snout), weakness, and poor growth. Standard practice is an intramuscular injection of 100 to 200 mg of iron dextran within the first 24 hours of life, typically given in the neck muscle or the ham. If your weak piglet never received its iron shot, this could be a contributing factor, especially if the piglet is more than a few days old and looking pale.
Consider Cross-Fostering
Sometimes a piglet is dying because it’s being outcompeted at the udder. A runt in a large litter may never get a fair chance to nurse, especially if the sow doesn’t have enough functional teats. Moving the weak piglet to a sow with a smaller litter or better milk production can make the difference.
Timing matters. Cross-fostering works best when done within 12 to 24 hours of birth, before piglets have established their “teat order,” the hierarchy that determines which piglet nurses where. Piglets moved during this window show no negative effects on growth or survival. Moving a piglet after day two becomes increasingly stressful, and fostering at a week old raises stress hormones and disrupts the piglet’s established nursing position. If cross-fostering isn’t possible, supplemental bottle or syringe feeding every two to three hours can substitute for what the piglet isn’t getting from the sow.
Warning Signs That Need a Vet
Some situations are beyond what warming, sugar, and hand-feeding can fix. A piglet with labored or rapid breathing, high fever, refusal to eat despite being warm, swollen joints, or a bluish tint to the skin may have pneumonia, sepsis, or a congenital problem. Neonatal piglets with respiratory infections can develop high fevers, eye inflammation, and rapid decline. Sudden death in a litter, especially if multiple piglets are affected, can point to a bacterial infection moving through the group.
If you’ve addressed warmth, energy, and hydration and the piglet still isn’t improving after several hours, or if multiple piglets in the litter are going downhill, a veterinarian can identify whether an infection is at play and whether the rest of the litter is at risk.