Pigs and piglets receive a wide range of specialized care designed to keep them healthy, reduce stress, and support natural behavior. This includes temperature-controlled environments for newborns, enrichment materials to satisfy their instinct to root and chew, early socialization with other litters, gradual introduction to solid food, pain management during routine procedures, and gentle handling that improves their well-being and growth.
Warm Zones for Newborn Piglets
Newborn piglets are highly vulnerable to cold. While adult sows are comfortable at around 16°C (61°F), piglets need significantly warmer conditions and require supplemental heating from birth until about three weeks of age. Farmers provide this through heat lamps positioned over a dedicated piglet corner within the farrowing pen, creating a warm microclimate where piglets can huddle without raising the temperature for the sow, who would overheat.
The farrowing pens themselves are carefully designed. In loose-housed systems where sows can move freely, pens typically measure about 3.2 meters long by 2 meters wide, with a total area of roughly 6.5 square meters. A protected piglet corner of about 1.1 square meters gives the litter a safe resting area away from the sow, reducing the risk of crushing. Protection rails along pen walls and strategic placement of feeding troughs add further safety. Research from Swedish commercial farms found that the largest sows occupy up to 3 square meters of floor space when lying down, which means pen design has to account for considerable size variation.
Enrichment Materials for Rooting and Chewing
Pigs are intensely curious animals with a strong drive to root, chew, and explore with their snouts. In barren indoor environments, this unmet need leads to problematic behaviors like tail biting. To address this, enrichment materials give pigs an outlet for their natural instincts.
The most effective enrichment materials are ones pigs can investigate, reshape, destroy, and even eat. Straw is the gold standard, but farms also use hay, sawdust, peat, mushroom compost, and alfalfa. These substrates can be spread as bedding or offered in racks and dispensers. Many producers also provide point-source objects like chains, plastic pipes, wooden blocks, balls, and commercially made pig toys, though research consistently shows these are less satisfying to pigs than substrates they can actually root through and chew apart.
The European Union has required since 2003 that all pigs have permanent access to enrichment materials. Council Directive 91/630/EEC originally stipulated that pigs must be able to obtain straw or other suitable material, and a 2001 update strengthened this to require a sufficient quantity of material for “proper investigation and manipulation activities.” Despite these rules, compliance varies widely. Surveys across EU member states still find many farms relying on bare chains or small balls on chains, which fall short of what pigs actually need.
Early Socialization With Other Litters
In commercial farming, piglets from different litters are typically mixed together at weaning, around 3 to 4 weeks of age. This sudden mixing triggers intense fighting as piglets try to establish a social hierarchy, causing stress, injuries, and reduced growth. A more welfare-friendly approach is to let litters mingle before weaning.
When piglets from two litters are allowed to interact starting around 10 days of age, simply by removing a barrier between adjacent pens, they engage in mostly playful, non-aggressive social encounters. This mirrors what happens in wild boar populations, where sows leave the isolated farrowing nest when piglets are one to two weeks old and the young naturally encounter other sows and piglets. Researchers have identified this window, from about a week after birth until weaning, as a natural socialization period when piglets are primed to form social relationships.
The long-term payoff is significant. Socialized piglets develop better social skills that persist well beyond weaning. When mixed with unfamiliar pigs later, they establish a stable dominance hierarchy more quickly. Their fights are shorter. By ten days after mixing, they have fewer skin lesions than piglets who were never socialized early. The early mixing does involve some brief aggression between piglets, but it causes only a temporary disruption to the sow’s behavior, nursing, and piglet growth.
Creep Feeding for a Smoother Transition
Creep feed is a highly palatable, easily digestible diet offered to piglets while they’re still nursing. It bridges the gap between mother’s milk and the solid food they’ll eat after weaning, giving their digestive systems time to adapt gradually rather than all at once.
Timing matters. Piglets started on creep feed during their first week of life tend to be heavier at weaning than those introduced to it later. For practical purposes, piglets weaned at 24 days or younger should begin creep feeding at the start of their second week of life. Those weaned at 28 days or later can start in their third week. A minimum of 14 days on creep feed is needed to see measurable improvements in pre-weaning weight gain.
Formulation also plays a role. Piglets fed a soluble creep diet containing oatmeal and soy protein isolate, offered in gruel form, were heavier at weaning, and that weight advantage carried through the first week of the nursery period. The goal is a feed that’s gentle enough for an immature gut while being appealing enough that piglets voluntarily eat it alongside their mother’s milk.
Pain Relief During Routine Procedures
Castration is one of the most common and painful procedures piglets undergo, typically performed in the first week of life. Pain management has become an increasing focus, with several approaches now in use. General anesthesia using inhaled or injectable agents can eliminate pain during the procedure itself but doesn’t address the hours of soreness that follow. Local anesthesia, injected into the scrotal area 5 to 15 minutes beforehand, numbs the surgical site. Anti-inflammatory medications, given by injection or orally about 20 minutes before the procedure, help reduce pain and swelling afterward.
Newer approaches aim to make pain relief more practical for farmers. One promising method uses a topical formulation applied directly into the wound during the procedure. It contains a fast-acting numbing agent that takes effect within 30 seconds, plus a longer-lasting anesthetic to extend pain relief into the post-operative period. This combination addresses what researchers have identified as the most painful moment of castration: the severing of the spermatic cords. Because it can be applied by the farmer during the procedure rather than requiring a pre-surgical injection, it’s more likely to be widely adopted on commercial farms.
Gentle Handling and Human Contact
How humans interact with pigs has a measurable effect on their stress levels, behavior, and productivity. Positive handling typically involves approaching pigs calmly, speaking in a soft voice, offering a hand for the pig to investigate, and then providing slow, gentle palm strokes from head to back at a pace of about one stroke every two seconds for a couple of minutes per pig.
Pigs that receive this kind of regular positive contact show more affiliative behavior toward people, meaning they approach rather than flee. They also show improved growth rates and, in breeding sows, better reproductive performance including higher farrowing rates and larger litter sizes. The mechanism works both ways: calm pigs are easier to manage, which makes handlers calmer, reinforcing a cycle of low-stress interactions. Sows provided with suitable nesting material before farrowing, another form of welfare support required by EU law, also show reduced stress around the time of giving birth.