Newborn Piglet Care During the First 48 Hours

By Dr. Zubair Khalid, DVM, MS, PhD · 2026-07-12

Key Takeaways

• Hypothermia is the primary cause of neonatal piglet mortality; maintaining a creep floor temperature of 32-35°C (90-95°F) for the first few days is critical, achieved through heat lamps or mats, with careful adjustment of lamp height to regulate floor temperature. Drafts at floor level must be meticulously avoided as they accelerate heat loss through convection.
• Prompt colostrum intake within the first 1-2 hours of birth is paramount for passive immunity transfer, as immunoglobulin absorption efficiency declines significantly after 6 hours and closes within 12-24 hours. Ensuring all piglets nurse before the sow is left unattended, especially smaller or weaker individuals, is essential to prevent immunological compromise.
• Effective litter size management and timely fostering decisions within 12 hours of birth are crucial, particularly for litters exceeding the sow's functional teat count. Foster piglets only after they have consumed colostrum from their birth sow to avoid depriving them of vital passive immunity.
• Rigorous hygiene, including a clean, dry creep area and navel care as per a veterinary-authorized protocol (e.g., dipping or spraying with appropriate disinfectants), is essential to prevent pathogen entry and reduce the risk of omphalitis. Pathogens can readily colonize wet navels and contaminated floors.
• Consistent, scheduled observation (every 2-4 hours for the first 24 hours, then at least twice daily) is vital for early detection of issues such as chilling, starvation, overlay, or sow health problems affecting milk let-down. Documenting observations, treatments, and mortality with specific causes (e.g., hypothermia, starvation) is critical for management adjustments and welfare audits.
• Procedures such as iron supplementation, teeth clipping, and tail docking, where permitted, must be performed by trained personnel under a veterinarian-approved protocol and meticulously documented. Adherence to local welfare regulations and market requirements regarding these procedures and potential pain relief is mandatory.

The first 48 hours after birth determine whether most piglets will survive and thrive. Newborn pigs are born with almost no body fat reserves, are wet and vulnerable to cold, and depend entirely on colostrum for both nutrition and passive immune protection. A simple, consistent protocol focused on warmth, colostrum access, and close observation reduces early mortality more reliably than reactive treatment of sick animals.

The WOAH Terrestrial Animal Health Code chapter on pig welfare identifies neonatal care, thermal comfort, and prompt attention to sick or injured animals as core welfare requirements for pig production. Local regulations and welfare assurance programs may add specific requirements for farrowing facilities, piglet procedures, and record-keeping.

At a Glance

The First Hour: The Most Critical Window

When a piglet is born, dry it quickly to reduce evaporative heat loss. Move it to a warm creep or under a heat lamp only briefly if the sow is still farrowing,each piglet needs to attach to a functional teat before it is warm enough to compete. Assist piglets that are slow to find the teat: guide them to the udder and observe until they nurse.

Colostrum is not replaceable by milk replacer for passive immunity. Immunoglobulins can only be absorbed across the small intestine during the first 12,24 hours of life, and absorption efficiency declines rapidly after the first few hours. A piglet that misses adequate colostrum in the first six hours may appear normal but will be immunologically compromised throughout the nursery phase. Iowa State University Extension's neonatal pig care resources provide practical guidance on assisting slow-starting piglets and estimating colostrum adequacy.

Check whether the sow has sufficient milk let-down. A sow with mastitis, a full bladder, pain, or extreme stress may have delayed or absent milk. The farrowing attendant should feel each mammary gland for heat and firmness and observe the nursing behavior,piglets that fight vigorously and then lie down satisfied have nursed; those that circle and squeal repeatedly have not.

Managing Litter Size and Foster Decisions

Litters larger than the sow's functional teat count present a significant challenge. Rather than assuming all piglets can compete, count functional teats early and decide within the first 12 hours whether any piglets need to be fostered.

Foster only after all piglets in a litter have nursed their birth sow for colostrum. Moving a piglet that has not received colostrum to a recipient sow that is already 2,3 days post-farrowing means that piglet will receive only milk, not colostrum. Identify suitable recipient sows,those that recently farrowed with smaller litters,and match piglet sizes where possible. Keep records of foster movements for traceability and health investigations.

Colostrum banking from high-producing sows (collected under hygienic conditions by hand or machine) can support piglets that cannot nurse effectively. Stored colostrum must be chilled promptly, used quickly, and fed at appropriate temperature. Consult your veterinarian on a written protocol before establishing a colostrum bank; hygiene failures can transmit pathogens between sows and litters.

Warmth and Environmental Management

The thermal comfort zone for neonatal piglets is substantially higher than for the sow. A sow is comfortable at approximately 16,18 °C, while a newborn piglet on a cold, wet floor becomes hypothermic within minutes. The design solution is a separate piglet creep area,typically with a heat lamp, heated mat, or both,that the sow cannot enter.

Check floor temperature in the creep, not just air temperature. Wet concrete at 15 °C is far more dangerous than still air at 20 °C. Bedding or solid insulating mats reduce conductive heat loss significantly. Lamp height determines floor temperature: adjust to achieve 32,35 °C at floor level during the first few days, then reduce gradually as piglets develop fat deposits and thermoregulatory capacity.

Drafts at floor level are highly detrimental. Even when air temperature is adequate, air movement across cold, wet piglets causes rapid heat loss. Check ventilation design in the farrowing house for drafts at floor level, especially near inlets and along walls. The Penn State Extension guide on swine facility ventilation addresses how inlet placement and air speed affect animal zones.

Navel and Procedure Hygiene

Follow a written veterinary-authorized protocol for navel treatment. In many herds, navels are dipped or sprayed with an appropriate disinfectant after birth to reduce omphalitis risk. Do not use products or concentrations not included in your veterinary plan, as some disinfectants can cause tissue damage.

Procedures such as iron supplementation, teeth clipping or grinding, and tail docking,where permitted and practiced,must be performed by trained personnel under a veterinarian-approved protocol. Welfare regulations vary significantly by jurisdiction and market requirement. Some programs restrict or prohibit certain procedures or require pain relief for specific interventions. Know which regulations apply and document all procedures performed, by whom, and at what age. The National Pork Board's Pork Quality Assurance Plus (PQA+) program outlines the documentation and care standards commonly expected by commercial US pork supply chains.

Daily Observation Sequence

Develop a written observation checklist for the first 48 hours. Walk the farrowing room on a fixed schedule and document:

1. Litter count and appearance. Count piglets; note any found dead, chilled, or injured.
2. Nursing behavior. Observe the sow during a let-down. Count piglets suckling versus those standing aside or sleeping away from the group.
3. Creep temperature. Note actual floor temperature. Adjust lamp height as needed.
4. Sow water and feed intake. A sow not eating or drinking in the first 12,24 hours may have a health problem affecting milk.
5. Sow vulvar discharge. Small amounts of reddish-brown discharge are normal; excessive fresh blood, greenish discharge, or retained piglets require veterinary evaluation.
6. Body condition and injuries. Note crushed or trampled piglets. Adjust creep design if overlay is frequent.

Record observations in the farrowing crate log. Entries require date, time, pig count, treatments given, and any unusual findings. This record supports investigation if mortality spikes and is required for welfare audits and veterinary consultations.

Useful Records to Keep

• Litter birth date, sow ID, total born, born alive, stillborn, mummified
• Birth weights (individual or estimated group) if feasible
• Number of functional teats; number of viable piglets matched to teats
• Foster movements: which pigs moved, to which sow, at what age and weight
• Iron dosing, teeth treatment, tail status, and other procedures with date and performer
• Mortality: date, estimated age, presumed cause (hypothermia, starvation, overlay, other)
• Treatments: piglet ID, sign, product, dose, date (veterinary authorization required)
• Colostrum bank batches: sow source, collection date, volume, use date

Review pre-weaning mortality by cause at the end of each farrowing batch. A cause distribution,overlay, hypothermia, starvation/low birth weight, diarrhea, other,guides targeted management changes more effectively than a single total mortality figure.

Common Mistakes

• Leaving slow-starting piglets in the creep without confirming colostrum intake. Warmth alone does not sustain a piglet that has not nursed.
• Over-fostering too early. Moving piglets to another sow before they nurse the birth sow deprives them of colostrum.
• Checking the room but not the individual litter. Walking past a crate without watching nursing leaves problems undetected until piglets are moribund.
• Relying only on air temperature. Creep floor temperature is what matters for neonatal thermoregulation.
• Performing undocumented procedures. All interventions must be recorded and covered by the herd veterinarian's plan.
• Underestimating sow health impact. A sow with fever, pain, or mastitis cannot let milk down reliably; piglet hunger and the sow's udder are both diagnostic clues.

Welfare, Biosecurity, and Regulatory Caveats

Welfare regulations for neonatal piglets address minimum space, thermal comfort, nursing access, and restrictions on painful procedures. Requirements differ between markets, certification programs, and jurisdictions. The EU, US, Canada, and other regions have distinct requirements for tail docking, teeth treatment, castration, and pain relief. Before performing any procedure, confirm its legal status in your jurisdiction and under any buyer or certification requirements.

From a biosecurity perspective, the farrowing room is a high-risk area: pathogens can move through contaminated boots, equipment, and clothing between litters. Maintain a written protocol for room entry, dedicated footwear, and equipment cleaning between crates. Sick sows or litters with unusual signs should be investigated promptly; consult USDA APHIS swine health resources for guidance on reportable diseases and when to notify the state veterinarian.

When to Involve a Veterinarian

Contact the herd veterinarian immediately when you observe: multiple fresh-born stillborns or mummified fetuses in excess of your normal baseline; a sow with retained fetuses, excessive hemorrhage, or signs of sepsis; a sow refusing to nurse or showing aggressive behavior toward piglets; outbreak-level diarrhea in piglets under 7 days; neurologic signs in piglets; or mortality significantly above your herd baseline during the first 48 hours. A veterinarian should also be involved in developing or reviewing protocols for colostrum banking, navel treatment, litter management procedures, and the treatment plan for sick piglets.

Frequently Asked Questions

How quickly must a newborn piglet receive colostrum?

Passive immune transfer occurs most efficiently in the first 4,6 hours after birth, and the intestinal capacity to absorb immunoglobulins largely closes within 12,24 hours. Practical management aims to ensure every piglet nurses within the first 1,2 hours. Piglets that do not nurse in the first few hours are both immunologically vulnerable and at risk of hypoglycemia from depleted glycogen reserves.

How do I tell if a piglet has nursed successfully?

A satisfied piglet will fall asleep, often with a milk-distended belly, and will not vocalize persistently. A hungry or cold piglet circles, vocalizes, and does not settle. You can also observe during a nursing cycle: the sow grunts rhythmically, and piglets attach firmly and make suckling movements. Count how many piglets are attached versus standing aside.

What is the normal pre-weaning mortality rate, and when should I be concerned?

Pre-weaning mortality across commercial herds typically ranges from roughly 8,15% in well-managed operations, though this varies widely with litter size, sow parity, facilities, and management. Mortality above your rolling baseline,or any sudden spike within a short period,warrants investigation. Cause-specific analysis matters: overlay and hypothermia are largely management-addressable, while pathogen-driven diarrhea or sudden death requires diagnostic investigation and veterinary guidance.

Can iron deficiency harm piglets before weaning?

Yes. Sow milk contains very little iron, and piglets are born with limited stores. Without access to soil or supplemental iron, neonatal piglets develop iron-deficiency anemia, which impairs growth, reduces disease resistance, and can cause deaths. Most commercial operations provide parenteral iron under a veterinary protocol, typically between 1,3 days of age. Outdoor and pasture operations may supply adequate iron through rooting in soil. Consult your veterinarian on appropriate timing, product, and dose for your system.

Related Clinical & Scientific Guides

• Pig Enrichment Programs and Behavior Monitoring
• Swine Handling Facility Design for Safe Pig Movement
• Swine Feeding Management for Grow-Finish Pigs

References and Further Reading

1. WOAH: Animal welfare and pig production systems (current chapter)
2. Iowa State University Extension: Neonatal pig care
3. National Pork Board: Pork Quality Assurance Plus (PQA+)
4. USDA APHIS: Swine health resources for producers
5. Penn State Extension: Swine production facilities and technology
6. University of Minnesota Extension: Swine,neonatal care and farrowing
7. National Pork Board: Common Swine Industry Audit standards
8. Iowa State University Extension: Iron supplementation for neonatal pigs

Related Farming Guides

• Farrowing House Preparation and Sow Care
• Sow Body Condition and Feeding Management
• Nursery Pig Management After Weaning
• Pig Farm Biosecurity Plan
• Production Records for Pig Farms

Educational notice: This article is educational and is not a substitute for veterinary diagnosis, treatment, or prescription; nutritional advice; engineering design; or regulatory guidance. Procedures such as iron supplementation, navel treatment, and litter management interventions must be performed under a veterinarian-authorized plan. Welfare regulations for neonatal procedures vary by jurisdiction and market,consult qualified local professionals and regulators before implementing any practice.