The domestic pig is a highly intelligent, social, rooting omnivore kept on farms and increasingly as a 'mini pig' companion — but even mini pigs grow large, live up to two decades, and are demanding pets. Pigs need outdoor rooting space, a wallow or shade for cooling (they can't sweat), a balanced low-calorie pig diet, and firm, consistent handling.
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Highly variable: 'mini'/potbellied pet pigs commonly reach 70-150+ lb fully grown (the 'teacup pig' is a myth — they do not stay tiny); standard farm breeds rea
Lifespan
12–20 years
Social needs
group
Native region
Eurasia (domesticated from the wild boar, Sus scrofa)
Origin
Old World
Climate
🌍 Varied
Family
Suidae
Genus
Sus
Part of the Pigs
Domestic pigs — from intelligent 'mini pig' companions (potbellied, Juliana, Kunekune) to standard farm breeds. Smart, social, rooting omnivores that grow larger and live longer than buyers expect, need cooling and rooting space, and benefit from spay/neuter.
From the minimum an animal needs to be kept humanely, up to the ideal setup. Bigger is almost always better — minimums are floors, not targets.
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Minimum
Pen + wallow + shelter
50 sq ft per pig + wallow + 3-sided shelter + hog-rated fence
Pigs are intelligent social rooters — pair preferred over solo. Pen with wallow (for cooling — pigs can't sweat) and hog-rated fencing. Generic domestic pig — adapt template to specific breed size (commercial vs heritage vs miniature).
Photo coming soon
Recommended
Pasture + barn
1/8-1/4 ac per pig + wallow + barn
Rotational paddock for rooting, sturdy fencing, barn for farrowing.
Photo coming soon
Ideal
Managed pasture + woodland
1/4+ ac per pig + woodland + barn
Managed pasture rotation + woodland browse, mud wallow, shade, herd-mate, breeder/vet schedule. Generic domestic pig — adapt template to specific breed size (commercial vs heritage vs miniature).
Life & growth stages
How this animal changes through its life — each stage often has its own care, diet and space needs.
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Newborn
Newborn mammals are nursed on their mother's milk. Many are born helpless — blind, deaf, and sparsely furred (altricial, as in dogs, cats, and rodents) — while others stand and follow within hours (precocial, as in hoofed livestock).
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Juvenile
After weaning, juveniles grow quickly and become increasingly active, playful, and independent. Adult coat, proportions, and (in many species) the permanent teeth come in as they approach full size.
Photo coming soon
Adult
Adults reach full body size and sexual maturity, with the species' mature coat and build. Sexual dimorphism — differences in size, mane, horns, or markings — is pronounced in some mammals and subtle in others.
Senior
Senior animals show aging signs such as graying fur, reduced activity, and a greater need for veterinary monitoring of joints, teeth, and organ function. Lifespan and the onset of old age vary widely by species and size.
Color & pattern variants
Natural variants occur in the wild; selectively bred (man-made) variants were developed in captivity.
Pigs need a secure outdoor space to **root, graze, and wallow** plus a draft-free, insulated shelter with a deep dry bed — pigs cannot sweat and must have **shade and a mud wallow, sprinkler, or shallow pool** in warm weather to avoid fatal heat stress, while needing a warm, well-bedded house in winter. Outdoor areas must be **strongly fenced**: pigs are powerful, persistent escape artists that root under and push through weak fencing, so use heavy welded panels, hog wire, or electric, set low to the ground. Pet pigs kept partly indoors still need daily outdoor rooting time and a designated rooting area (a 'rooting box' of soil/straw indoors helps), plus litter-box or outdoor toileting — pigs are clean and won't soil their bed. Expect a pig to redesign any yard it can access.
Substrate
Bed the shelter deeply with clean, dry **straw** (the classic choice — pigs love to burrow and build nests in it) or hay; a deep straw nest is how pigs thermoregulate in cold. Pine shavings can be used but pigs may root and scatter them. For indoor pet pigs, provide a soft bed plus a **rooting box** of soil, straw, or rubber mats with scattered food to satisfy the rooting drive, and a litter area (large litter pan with pelleted or paper litter — avoid clumping clay). Outdoors, a mix of dirt/pasture for rooting plus a **mud wallow** is ideal; mud is functional, not just dirty — it cools the skin and offers sun protection. Keep sleeping areas dry and ammonia-free.
Equipment & setup
Essentials: a sturdy insulated shelter, **heavy-duty fencing** (hog panels/welded wire or electric) rated to contain a strong digger, shade plus a wallow/pool/sprinkler for cooling, and a large heavy water source. For pet pigs: a measured feeding system, a harness and lead for walks (pigs can't be collared like dogs — use an H- or step-in harness), a litter pan, rooting box, and food puzzles for enrichment. Husbandry tools: hoof trimmers, a brush, sunscreen for pink-skinned pigs in summer, and a transport crate the pig is trained to enter. A relationship with a swine-experienced veterinarian and knowledge of local zoning/permit rules complete the setup.
Diet
Pigs are **omnivores** with a strong tendency toward obesity, so diet control is central to their welfare. Pet/mini pigs should be fed a **formulated mini-pig pellet** (lower-calorie than production hog feed, which is designed to fatten fast-growing meat pigs) measured by body condition, supplemented with leafy greens, limited vegetables, and grazing; treats must be limited. **Never free-feed**, and never let a pig become so fat that fat rolls obstruct its eyes ('fat blindness') or strain its joints. Production pigs are fed balanced grower/finisher rations for growth. Always provide unlimited fresh water (pigs drink a lot). Avoid feeding meat scraps/food waste containing meat, which is illegal in many places (swill-feeding bans to prevent disease) and risky. Chocolate, moldy feed, and salt excess without water are dangerous.
Behavior & temperament
Pigs are among the most intelligent domestic animals — comparable to dogs in problem-solving — and are curious, social, food-motivated, and highly trainable (they learn names, tricks, harness-walking, and litter use). This intelligence cuts both ways: a bored, under-stimulated pig becomes destructive and pushy. They are social herd animals with a real dominance hierarchy and will test humans for rank; **consistent, calm boundaries are essential**, and pigs that are allowed to 'win' can become aggressive, especially intact males. **Spaying/neutering is strongly recommended** for pet pigs to curb hormonal aggression, odor, marking, and (in females) very high reproductive/uterine-cancer risk. Pigs root constantly (an innate need), love wallowing and belly rubs, and form strong bonds but should ideally have a porcine companion.
Health
Pigs need a **swine-experienced vet**, which can be hard to find for pet pigs. Key issues: **obesity** and its cascade (arthritis, joint and heart strain, fat blindness), overgrown **hooves and tusks** (boars' tusks keep growing and need periodic trimming), dry skin and mange/lice (external parasites are common), respiratory disease, and heat stroke. Routine care includes hoof trims, deworming, and where required, vaccinations and regulated disease testing (e.g., pseudorabies/brucellosis status matters legally in many states). **Spay/neuter** prevents hormonal disease and behavior problems. Pigs hide pain and illness well, so monitor appetite, gait, and body condition closely. Note pigs are highly sensitive to many sedatives/anesthetics, another reason a swine-savvy vet matters.
Tips, DIY & hacks
The most important truth: **'teacup' and 'micro' pigs are not real** — sellers achieve tiny adults by underfeeding (stunting) or by selling underage piglets that grow to 70-150+ lb. Buy from honest breeders/rescues and plan for an adult mini pig the size of a medium dog that lives 15-20 years. **Check your zoning first** — many municipalities classify pigs as livestock and ban them from residential areas regardless of size. Get pet pigs **spayed/neutered** early. Establish calm, consistent leadership from day one and never reinforce pushy, food-aggressive behavior. Give a pig a job: training, food puzzles, a rooting box, and ideally a pig friend prevent the boredom-driven destructiveness that lands so many pigs in rescues. Provide cooling in summer — heat stroke kills pigs fast.
