Choosing Healthy Pigs

The pigs you bring home set the trajectory for everything that follows. Healthy animals with good genetics and proper development grow efficiently, resist disease challenges, and reward your care with good returns. Pigs carrying illness, structural problems, or poor genetics struggle from day one, consuming your time and resources while delivering disappointing results. The difference often becomes apparent only after you have invested weeks of feed and labor into animals that never should have left the seller's farm.

Learning to evaluate pigs before purchase protects your investment and your existing herd from problems that hitchhike home with new arrivals. Every pig you consider buying tells a story through its appearance, movement, and behavior if you know how to read the signs. Bright eyes, active interest in surroundings, smooth movement, and appropriate body condition all signal animals worth considering. Discharge from eyes or nose, labored breathing, lameness, rough coats, and poor body condition warn you away from purchases that bring nothing but problems.

The source of your pigs matters as much as the individual animals themselves. Established breeders with reputations to protect maintain different standards than someone liquidating an overstocked or struggling operation. Auction barns mix animals from multiple sources under stressful conditions that spread disease and make individual evaluation nearly impossible. Your first pigs should come from farms you can visit, sellers you can question, and situations where you see the animals in their normal environment before committing to purchase.

This guide walks through the evaluation process that experienced pig buyers use when selecting animals. You will learn what to look for and what to avoid across the major body systems, how to assess structural soundness that predicts long-term performance, what questions to ask sellers, and how to protect yourself and your existing animals when bringing new pigs home. Taking time to evaluate carefully before purchase saves you from the much larger investment of time, money, and heartache that unhealthy pigs demand.

Physical examination of any pig you consider purchasing begins with overall impression before moving to specific body systems. Stand back and watch the animal move around its pen before catching it or getting close. Healthy pigs move freely with even, coordinated gaits and show active interest in their environment. They should come to investigate you, their penmates, and any activity in their area. Pigs that stand apart from the group, move reluctantly, or show no interest in surroundings are telling you something is wrong.

Body condition assessment reveals whether the pig has been receiving adequate nutrition and whether underlying health problems are affecting growth. Run your hands along the spine feeling for the backbone beneath a moderate covering of flesh. You should be able to feel but not see individual vertebrae. The hip bones and shoulder blades should be covered without excessive fat padding. Ribs should be palpable with light pressure but not visible. Animals that are too thin may be parasitized, ill, or have been poorly fed. Animals that are too fat may have difficulty transitioning to your feeding program.

Skin and coat condition reflect overall health and parasite status. Healthy pigs have smooth, pliable skin covered with hair appropriate to their breed. Look for lesions, scabs, or raw areas that might indicate mange mites, ringworm, or greasy pig disease. Check behind the ears, in the armpits, and along the belly where parasites concentrate. Excessive scratching or rubbing marks on housing suggest itching from external parasites. Rough, dull coats that lack shine often indicate internal parasites or nutritional deficiency even when no obvious skin problems are visible.

Respiratory health shows through breathing patterns and any discharge from the nose or eyes. Watch the pig breathe from a distance, looking for easy, regular respirations without visible effort. Approach and listen for any coughing, sneezing, or abnormal sounds as the pig breathes. Examine the nose and eyes for discharge, which can range from clear fluid to thick, colored mucus depending on the condition involved. Respiratory disease spreads easily between pigs and can devastate your herd once introduced, making any signs of respiratory problems reason to walk away from a purchase.

Digestive health evidence appears in the condition of the pig and the manure visible in the pen. Diarrhea staining around the hindquarters indicates current or recent digestive upset that may signal infectious disease or parasite problems. Pigs recovering from scours often show poor body condition and rough coats even after the diarrhea resolves. Look at the manure in the pen, understanding that some variation is normal but persistent loose or bloody stool suggests problems affecting the group. Healthy pigs produce formed feces that hold their shape.

Structural soundness deserves careful evaluation because skeletal and limb problems that seem minor in young pigs often worsen dramatically as animals gain weight. Watch how the pig walks and stands, looking at leg position from multiple angles. Legs should be straight and properly angled, with the pig standing squarely on all four feet. Check feet for correct toe shape and spacing, absence of overgrowth or cracks, and equal weight bearing. Avoid pigs that stand with splayed legs, have obviously crooked limbs, or favor one leg over others. Structural problems rarely improve and frequently worsen with age and weight gain.

Before visiting any farm to evaluate pigs, gather information that helps you assess both the animals and the seller. Ask about the herd's health history including any recent disease challenges, vaccination protocols, and deworming schedules. Request information about the pigs' parents, particularly if you are purchasing breeding stock. Find out how the pigs have been fed and what diet they have been receiving. Learn about the housing and management system the pigs are accustomed to. This background helps you evaluate what you see on the farm and plan for the transition to your operation.

On the farm evaluation should include observing the overall operation, not just the individual pigs available for purchase. General farm cleanliness, the condition of other animals present, and how the seller handles and discusses their stock all provide valuable information. Farms with well-maintained facilities and healthy-looking animals across all age groups suggest management practices that produce quality stock. Operations with rundown facilities, mixed animal conditions, and evasive sellers about health history should raise concerns regardless of how attractive individual pigs appear.

Practical handling during your visit reveals temperament and socialization that affect how easily pigs will adapt to your management. Ask to see the pigs caught and handled if the seller is willing. Pigs that have been worked regularly and handled appropriately show initial wariness followed by calming once caught. Animals that become wildly agitated and remain panicked despite handling suggest either poor socialization or possible neurological problems. Extremely aggressive behavior, particularly in young pigs, may indicate genetic temperament issues that will only worsen with size.

Documentation of your purchase should include written records of the pigs' background, any health treatments they have received, and the seller's contact information. For breeding stock especially, obtain registration papers, pedigree information, or at minimum written identification of the sire and dam. Keep records of where you purchased animals and when in case health problems develop later that need to be traced to their source. Reputable sellers provide this documentation willingly because it protects both parties and demonstrates their commitment to quality.

Transport planning affects how well pigs transition to your farm. Arrange appropriate transport before picking up pigs, with secure containment, adequate ventilation, and protection from temperature extremes. Moving pigs causes stress that suppresses immune function and can trigger disease in animals carrying subclinical infections. Plan the shortest practical trip and avoid stops that extend travel time unnecessarily. Have receiving facilities ready at home so pigs can settle into clean, comfortable quarantine housing immediately upon arrival.

Disease introduction through purchased pigs represents one of the most significant health risks to any pig operation. Many serious swine diseases spread through direct contact between infected and susceptible animals. Pigs can carry and shed pathogens without showing obvious illness, making visual evaluation alone insufficient to detect all health threats. Some diseases establish in herds and persist indefinitely once introduced, causing ongoing losses that far exceed the cost of the animals that brought them in.

Quarantine protocols protect your existing herd from disease that new arrivals might be carrying. House newly purchased pigs completely separate from your established animals for a minimum of three weeks, though four to six weeks provides better protection for serious diseases with longer incubation periods. During quarantine, observe new pigs daily for any signs of illness that were not apparent at purchase. Handle quarantined animals last in your daily routine and change clothes and footwear before returning to your established herd.

Veterinary involvement in your purchasing process adds professional evaluation to your own assessment. Having a veterinarian examine pigs before purchase, particularly expensive breeding stock, may identify problems that casual observation misses. Blood testing can detect exposure to specific diseases of concern. Health certificates from veterinary examination provide documentation of the animal's condition at purchase. For valuable animals or purchases from unknown sources, veterinary involvement provides protection worth its cost.

Vaccination history affects what disease protection purchased pigs bring with them and what additional vaccination they may need. Ask what vaccines the pigs have received and when. Common vaccines include erysipelas, porcine parvovirus for breeding animals, and various respiratory disease components depending on regional disease pressure. Pigs that have not been vaccinated need a vaccination schedule developed with your veterinarian based on diseases present in your area and your operation's risk factors.

Parasite status in purchased pigs determines what treatment they need upon arrival and how likely they are to contaminate your facilities. Assume any purchased pig carries internal parasites unless you have documentation of recent effective deworming. External parasites like mange mites spread easily between animals and contaminate housing, requiring treatment of both the animals and their environment. Deworm and treat for external parasites as part of your standard receiving protocol for all purchased pigs regardless of their stated treatment history.

Breed selection should precede individual animal evaluation because the breed you choose affects everything about your pig operation. Different breeds excel at different purposes, from rapid growth to pasture foraging to exceptional meat quality to breeding efficiency. Match your breed choice to your production goals, management system, and market before shopping for individual animals. The best pig of the wrong breed for your situation will disappoint you despite individual quality.

Heritage breeds attract many small-scale producers for valid reasons including flavor, foraging ability, maternal traits, and contribution to genetic conservation. Evaluating heritage breed pigs requires understanding what correct type looks like for the specific breed. Breed associations publish standards describing ideal characteristics, and attending breed shows or visiting established breeders helps train your eye for quality within the breed. Heritage breed evaluation emphasizes breed character, structural soundness, and production traits appropriate to the breed's purpose.

Commercial genetics produce pigs optimized for intensive production systems with high growth rates, feed efficiency, and lean carcass composition. These traits benefit small producers who want maximum production from their resources, but come with management requirements that may not fit all operations. Commercial pigs often require higher-quality diets to express their genetic potential and may not perform as well on pasture or alternative feeding systems as heritage breeds adapted to those conditions.

Crossbreeding creates opportunities to combine breed strengths while capturing hybrid vigor that often exceeds either parent breed. Evaluating crossbred pigs focuses more on individual merit and less on breed type since there is no breed standard to apply. Look for animals that combine the best characteristics of their parent breeds while avoiding the weaknesses of either. Crossbred gilts from well-chosen parent breeds often make excellent production animals for small operations.

Source reputation matters especially when breed claims cannot be verified through registration papers. Reputable heritage breed breeders register their stock with breed associations and provide documentation. Commercial genetics typically come with known parentage from established breeding programs. Animals sold as specific breeds without documentation may or may not represent what the seller claims. When in doubt about breed authenticity, evaluate pigs on their individual merit rather than breed claims you cannot verify.

Buying on price alone consistently produces disappointing results in pig purchasing. Cheap pigs are cheap for reasons that become apparent after you get them home. Animals that should have been culled, offspring from poor-quality parents, pigs from disease-challenged herds, and individuals with subtle problems all find their way to the low end of the market. Quality breeding stock and healthy feeder pigs command prices that reflect the investment in genetics, nutrition, and health management their producers have made. Pay for quality because you end up paying more in the long run when you do not.

Auction barn purchases carry risks that make them unsuitable for most small-scale producers' needs. Animals pass through auctions for reasons often related to health or quality problems. Stress and commingling during the auction process spreads disease between animals from different sources. You cannot evaluate animals properly in the auction environment and often cannot learn anything about their background. The bargain you think you found at auction frequently becomes an expensive lesson when purchased pigs get sick or fail to perform.

Skipping quarantine puts your entire operation at risk to save the inconvenience of managing separate groups. Diseases that new arrivals might carry can devastate an established herd that has no immunity to pathogens it has never encountered. The three to six weeks of quarantine seems tedious when new pigs arrive, but preventing disease introduction protects investments far more valuable than any individual animal. Maintain absolute separation between quarantined animals and your established herd throughout the quarantine period.

Failing to observe pigs before purchase because you trust the seller or want to save time leads to nasty surprises after the sale is complete. Always see any pig you intend to purchase in person before money changes hands. Watch the animal move, check its condition, and verify it matches descriptions provided by the seller. Photographs and descriptions can be misleading either intentionally or unintentionally. Reputable sellers welcome farm visits and understand why buyers want to evaluate animals personally.

Ignoring structural problems in young pigs because they seem minor guarantees those problems will worsen as the animals grow. Skeleton and limb issues that barely affect a fifty-pound pig become crippling in a four-hundred-pound sow. Breeding stock especially must have correct structure to withstand years of production. Culling animals with structural problems rather than purchasing them and hoping for the best protects your operation from the losses that unsound animals inevitably produce.

Bringing home more pigs than your facilities can properly accommodate creates stress and disease pressure that affects everything in your operation. Overcrowding leads to aggression, poor growth, respiratory disease, and management difficulties that spiral beyond your control. Know your facility capacity before shopping and resist the temptation to add animals beyond what you can house and manage well. Fewer well-managed pigs outperform more pigs under poor conditions every time.