Swine Nursery Pen Design: Space, Flooring, and Environment

By Dr. Zubair Khalid, DVM, MS, PhD · 2026-08-14

Key Takeaways

Space Allocation: Newly weaned pigs (10-25 lbs) require 1.5-2.0 sq ft, while heavier pigs (50-70 lbs) need 3.0-4.0 sq ft, with group size and flooring type influencing these requirements. Overcrowding leads to reduced feed intake, lower daily gain, increased aggression, and higher disease risk.
Flooring Strategy: For the initial 7-10 days post-weaning, fully slatted plastic or woven wire flooring is recommended for comfort and foot health. Transitioning to partially slatted concrete with a solid lying area (40-60% of pen) is advised for subsequent weeks to balance hygiene and pig comfort.
Environmental Control: Maintain initial nursery temperatures at 85-90°F, reducing by 2-3°F weekly. Ventilation rates should be 20-30 cfm/pig in summer and 2-5 cfm/pig in winter to manage temperature, humidity (50-70%), and ammonia levels (<10 ppm).
Resource Provision: Ensure adequate feeder space (1 space per 4-5 pigs, 8-10 inches trough length) and water access (1 nipple drinker per 10-12 pigs, minimum 2 per pen). Placement on opposite sides of the pen encourages movement and reduces competition.
Pen Design for Welfare: Pen dimensions should maintain a length-to-width ratio of 1.5:1 to 2:1. Partitions should be solid for the lower 12-18 inches to prevent drafts and disease transmission, with dividers reaching 24-30 inches high.

Weaning is one of the most stressful events in a pig's life. Piglets leave the sow, encounter new penmates, and face a sudden change in diet and environment. How you design the nursery pen determines whether those newly weaned pigs thrive or struggle. This guide covers the critical decisions in swine nursery pen design: space allocation, flooring choices, and environmental control. It is written for swine producers, farm managers, and anyone planning a new nursery barn or renovating an existing one. You will find specific measurements, material comparisons, and step-by-step guidance you can apply directly to your operation.

At a Glance

Space per pig: Provide 2.5 to 3.5 square feet per pig for pigs weaned at 3 to 4 weeks of age, depending on target market weight and group size.
Flooring: Use fully slatted plastic or woven wire flooring for the first 7 to 10 days, then transition to partially slatted concrete with a solid lying area.
Group size: Keep groups between 10 and 30 pigs per pen. Larger groups require more feeder space and more careful monitoring.
Temperature: Start nursery rooms at 85 to 90 degrees Fahrenheit for the first week, then reduce by 2 to 3 degrees each week.
Ventilation: Provide 20 to 30 cubic feet per minute of air movement per pig in summer and 2 to 5 cfm per pig in winter.
Feeder space: Offer one feeder space per 4 to 5 pigs. A feeder space is roughly 8 to 10 inches of trough length.
Water access: Provide one nipple drinker per 10 to 12 pigs, with two drinkers minimum per pen.
Flooring type matters: Plastic and woven wire outperform expanded metal for foot health and comfort in the first two weeks after weaning.

Why Nursery Pen Design Matters

The nursery phase spans roughly 3 to 10 weeks of age, from weaning to about 40 to 60 pounds. This is a period of rapid growth and high vulnerability. Piglets arrive with immature immune systems and digestive tracts. They have limited body fat reserves and poor temperature regulation. A poorly designed pen can set back a pig for the rest of its life.

Research consistently shows that nursery environment affects lifetime performance. Pigs that experience high stress and poor conditions in the nursery often have reduced growth rates through finishing. They also show higher rates of disease and mortality. The nursery pen is not just a holding area. It is a critical production tool.

Several factors drive nursery pen design decisions. These include weaning age, target weaning weight, group size, ventilation system, manure handling, and available budget. Your choices in one area affect others. For example, fully slatted floors allow more pigs per pen but increase initial cost. Solid floors with bedding require more labor but may lower capital costs.

The goal is to create an environment where pigs can eat, drink, rest, and explore without competition or discomfort. This means paying attention to the details of space, flooring, and climate.

Nursery Pig Space Requirements

Space allocation is the most common question producers ask about nursery pen design. The answer depends on several factors, including pig weight at placement, target weight at nursery exit, group size, and flooring type.

Space per Pig by Weight

The National Pork Board and university extension services generally recommend the following space allowances for nursery pigs:

Pigs 10 to 25 pounds: 1.5 to 2.0 square feet per pig
Pigs 25 to 50 pounds: 2.5 to 3.0 square feet per pig
Pigs 50 to 70 pounds: 3.0 to 4.0 square feet per pig

These figures assume fully slatted floors and pigs housed in groups of 20 to 30. If you use partially slatted floors with a solid lying area, you can slightly reduce total space because pigs use the solid area for resting and the slatted area for manure.

Calculating Pen Dimensions

To calculate pen dimensions, multiply the number of pigs by the space per pig. Then choose a length and width that fits your barn layout and provides proper feeder and drinker access.

For example, a pen for 20 pigs weighing 25 to 50 pounds needs 50 to 60 square feet. A pen that is 5 feet wide and 11 feet long provides 55 square feet. That gives each pig 2.75 square feet, which is within the recommended range.

Key Space Considerations

Weaning weight affects space needs. A pig weaned at 8 pounds needs less space in the first week than a pig weaned at 15 pounds. But the heavier pig will reach market weight sooner and will need more space earlier in the nursery period. Plan space based on the expected weight at the end of the nursery phase, not the starting weight.

Group size influences space efficiency. Smaller groups of 10 to 15 pigs allow each pig more feeder and drinker access. Larger groups of 30 to 50 pigs can be more efficient with space but require more careful management. Competition for feed and water increases with group size.

Flooring type changes space needs. Fully slatted floors allow you to use the entire pen area for pig activity. Partially slatted floors require you to account for the solid lying area separately. Pigs will not use the slatted area for lying if the solid area is comfortable.

Seasonal adjustments. In hot weather, pigs need more space to avoid heat stress. In cold weather, pigs huddle and may use less space. If your nursery has limited environmental control, consider reducing group size or increasing space per pig during summer months.

The Cost of Overcrowding

Overcrowding has measurable negative effects. Pigs in overcrowded pens show reduced feed intake, lower daily gain, and increased aggression. They also have higher rates of tail biting and ear necrosis. Manure accumulates faster, which increases ammonia levels and respiratory disease risk.

The economic calculation is straightforward. The cost of building extra pen space is a one-time capital expense. The cost of reduced growth and increased mortality is ongoing. In most cases, providing adequate space pays for itself within one or two groups of pigs.

Pig Nursery Pen Flooring Options

Flooring is the surface pigs stand, lie, and walk on for the entire nursery period. It affects foot health, comfort, cleanliness, and manure handling. The choice of flooring material is one of the most important decisions in nursery pen design.

Flooring Material Comparison

Plastic slats. Plastic flooring is the most common choice for new nursery pens. It is warm to the touch, easy to clean, and gentle on piglet feet. Plastic slats come in panels that snap together and can be removed for cleaning. They provide good traction even when wet. The main downside is cost. Plastic slats are more expensive than other options.

Woven wire flooring. Woven wire is a popular alternative to plastic. It is made of welded wire mesh with small openings that allow manure to pass through. Woven wire is warm, comfortable, and provides excellent traction. It is less expensive than plastic but not as durable. Wire can sag over time, especially in high-traffic areas.

Expanded metal flooring. Expanded metal is made from a solid sheet of metal that is slit and stretched to create diamond-shaped openings. It is strong and durable but can be cold and uncomfortable for piglets. The sharp edges can cause foot injuries. Expanded metal is less common in modern nursery facilities.

Concrete slats. Concrete slats are the standard for finishing barns but are less common in nurseries. Concrete is durable and relatively inexpensive, but it is cold and abrasive for young piglets. If you use concrete in the nursery, provide a rubber mat or plastic mat over the lying area for the first two weeks.

Solid concrete with bedding. Some producers use solid concrete floors with straw or wood shavings. This system works well in cold climates and provides excellent comfort. The downside is increased labor for bedding management and manure removal. Solid floors also require more space per pig because pigs need separate lying and dunging areas.

Recommended Flooring by Nursery Stage

The best approach is to match flooring to the pig's age and weight.

Week 1 to 2 after weaning. Use fully slatted plastic or woven wire flooring. Piglets need warmth and comfort during this stressful period. Avoid expanded metal and bare concrete. If you must use concrete, cover the entire floor with rubber mats or plastic slats.

Week 3 to 6. You can transition to partially slatted floors. Provide a solid lying area covering 40 to 60 percent of the pen. The slatted area handles manure and urine. This system reduces the amount of expensive slatted flooring you need while maintaining pig comfort.

Week 6 to 8. By this point, pigs weigh 40 to 60 pounds and are more resilient. You can move them to fully slatted concrete floors if your barn is set up for that. Alternatively, keep them on the same partially slatted system until they move to the grow-finish barn.

Flooring Installation Tips

Slat spacing. For plastic and woven wire, slat openings should be 0.4 to 0.5 inches. This allows manure to pass through while preventing feet from getting caught. For concrete slats, use 0.5 to 0.75 inch openings for nursery pigs.

Slat direction. Run slats perpendicular to the length of the pen. This helps manure fall through more easily and reduces the chance of pigs slipping.

Drainage. Ensure the floor has a slight slope toward the manure collection area. A slope of 1 to 2 percent is usually sufficient.

Transition strips. If you use different flooring types in the same pen, install smooth transition strips to prevent tripping and foot injuries.

Cleaning access. Choose flooring that can be easily cleaned between groups. Plastic and woven wire panels can be removed and pressure washed. Concrete requires thorough scraping and washing.

Common Flooring Mistakes

Using expanded metal for young piglets. Expanded metal is cold, slippery, and can cause foot abrasions. It is not suitable for pigs under 30 pounds.

Inadequate slat spacing. Openings that are too large allow feet to get caught, causing injuries. Openings that are too small allow manure to build up on the floor.

No solid resting area. Fully slatted floors are fine for the first two weeks, but pigs need a solid area for comfort and warmth as they grow. Without it, pigs may lie in manure or show increased restlessness.

Poor drainage. If the floor does not drain properly, manure and urine accumulate, increasing ammonia and disease pressure.

Pen Layout and Internal Design

Beyond flooring material, the layout of the pen itself matters. This includes pen dimensions, feeder placement, drinker placement, and partitions.

Pen Dimensions and Shape

Nursery pens are typically rectangular. The ratio of length to width should be between 1.5:1 and 2:1. A pen that is too long and narrow makes it difficult for pigs to access feeders and drinkers. A pen that is too square makes it hard to clean and manage.

For 20 pigs, a pen measuring 5 feet by 11 feet works well. For 30 pigs, use 6 feet by 15 feet. Adjust these dimensions based on your barn layout and the space per pig calculations discussed earlier.

Feeder Placement

Place feeders along a pen wall, not in the center. This gives pigs a clear path to the feeder and reduces competition. Position the feeder so pigs can approach from multiple angles. This is especially important in larger groups.

Feeder space requirements. Provide one feeder space per 4 to 5 pigs. A feeder space is the width of one pig's head at the trough, typically 8 to 10 inches. For 20 pigs, you need 4 to 5 feeder spaces, or 40 to 50 inches of trough length.

Feeder height. Adjust feeder height so pigs can eat comfortably without straining. The trough lip should be at about shoulder height of the smallest pig in the pen. For newly weaned pigs, this is 6 to 8 inches from the floor. Raise the feeder as pigs grow.

Feeder adjustment. Most commercial feeders have adjustable openings to control feed flow. Set the opening so feed flows freely but does not pile up in the trough. Check feeders twice daily and adjust as needed.

Drinker Placement

Place drinkers on the opposite side of the pen from the feeder. This encourages pigs to move around and reduces competition at the feeder. It also keeps the lying area cleaner because pigs tend to dung away from their resting area.

Drinker height. Nipple drinkers should be at shoulder height of the smallest pig. For newly weaned pigs, this is 8 to 10 inches from the floor. Raise drinkers as pigs grow. A general rule is to set drinkers at the pig's shoulder height and adjust weekly.

Flow rate. Nipple drinkers should deliver 1 to 2 cups of water per minute. Pigs need about 0.5 gallons of water per day for every 10 pounds of body weight. Check flow rates regularly and clean drinkers between groups.

Number of drinkers. Provide one nipple drinker per 10 to 12 pigs, with a minimum of two drinkers per pen. If one drinker becomes blocked, pigs still have access to water.

Partitions and Pen Dividers

Pen dividers should be solid on the lower portion to prevent drafts and reduce disease transmission between pens. Use solid material for the bottom 12 to 18 inches, then open bar or mesh above. This allows air movement while protecting pigs from drafts.

Dividers should be 24 to 30 inches high. Pigs can jump surprisingly well, especially when excited. Taller dividers reduce the risk of pigs moving between pens.

Gates. Use a gate on each pen for easy access. Gates should swing outward into the aisle and latch securely. Consider using a drop-down gate or a gate with a self-locking mechanism to make catching pigs easier.

Dunging Area Design

Pigs naturally separate their lying and dunging areas. You can encourage this behavior with thoughtful pen design.

Slatted area as dunging zone. In a partially slatted pen, pigs will typically dung on the slatted portion. Place the slatted area at the front of the pen, away from the solid lying area. This keeps the lying area clean and dry.

Dunging area location. Pigs prefer to dung in areas with air movement and light. Position the slatted area near the aisle or near the ventilation inlet. This encourages pigs to use the slatted area for dunging.

Training pigs. When you place pigs in a new pen, they need time to learn the dunging area. Keep the lying area clean and dry. If pigs dung in the wrong area, remove the manure and place it in the slatted area. This teaches pigs where to dung.

Environmental Control in the Nursery

Temperature, humidity, and air quality are critical in the nursery. Newly weaned pigs cannot regulate their body temperature well. They need a warm, draft-free environment to thrive.

Temperature Requirements

Newly weaned pigs need a temperature of 85 to 90 degrees Fahrenheit for the first week. This is significantly warmer than the farrowing room, which is typically 70 to 75 degrees. The extra warmth helps piglets adjust to their new environment and encourages feed intake.

After the first week, reduce temperature by 2 to 3 degrees per week. By week 4, the nursery can be at 75 to 78 degrees. By week 6, pigs are comfortable at 70 to 75 degrees.

Temperature monitoring. Place thermometers at pig level, not at human eye level. The temperature at floor level can be 5 to 10 degrees different from the temperature at shoulder height. Use multiple thermometers throughout the room to identify cold or hot spots.

Heat lamps and pads. In the first week, provide supplemental heat with heat lamps or heat pads. Place heat lamps over the solid lying area. This creates a warm zone where piglets can rest. Use one heat lamp per 20 to 25 pigs. Adjust lamp height to maintain the correct temperature at pig level.

Humidity and Ventilation

Relative humidity in the nursery should be 50 to 70 percent. High humidity makes it harder for pigs to cool themselves and increases ammonia levels. Low humidity can dry out respiratory passages and increase dust.

Ventilation rates. In summer, provide 20 to 30 cubic feet per minute of air movement per pig. In winter, reduce to 2 to 5 cfm per pig to maintain temperature while removing moisture and gases. Use variable-speed fans to adjust ventilation based on temperature and humidity.

Air distribution. Air should enter the room at one end and exit at the other, creating a consistent flow across the pens. Avoid dead zones where air stagnates. Use baffles and ceiling inlets to direct air flow.

Draft prevention. Drafts are a major cause of chilling in young pigs. Air moving at 50 feet per minute feels like a 5 degree temperature drop to a pig. Use solid pen dividers and proper inlet design to prevent drafts at pig level.

Ammonia and Air Quality

Ammonia is a significant problem in nursery barns. High ammonia levels irritate the respiratory tract, increase disease susceptibility, and reduce feed intake. Ammonia levels should stay below 10 parts per million.

Controlling ammonia. Keep floors clean and dry. Remove manure regularly. Ensure proper ventilation to remove ammonia gas. If ammonia levels remain high, increase ventilation rate or improve manure handling.

Monitoring air quality. Use gas detection tubes or electronic sensors to measure ammonia and carbon dioxide levels. Check air quality weekly, especially in winter when ventilation rates are low.

Lighting

Pigs need 14 to 16 hours of light per day for optimal feed intake. Provide 10 to 20 foot-candles of light at pig level during daylight hours. Use timers to provide a consistent light-dark cycle.

Lighting also helps with management. Good lighting makes it easier to check pigs, identify problems, and clean pens. Use light-colored walls and ceilings to reflect light and reduce energy costs.

Common Nursery Pen Design Mistakes

Even experienced producers make design errors. Here are the most common problems and how to avoid them.

Mistake 1: Overcrowding

The most common mistake is putting too many pigs in a pen. Producers often try to maximize barn capacity by reducing space per pig. This saves on building costs but costs more in reduced performance and increased mortality.

The fix. Calculate space requirements based on the expected weight at the end of the nursery period, not the starting weight. If you are unsure, provide more space rather than less.

Mistake 2: Cold Floors for Young Pigs

Bare concrete or expanded metal floors chill piglets and cause foot injuries. This is especially problematic in the first two weeks after weaning.

The fix. Use plastic or woven wire flooring for at least the first two weeks. If you must use concrete, cover the lying area with rubber mats or plastic slats.

Mistake 3: Poor Drainage

If the floor does not drain properly, manure and urine accumulate, creating health problems and increasing labor.

The fix. Ensure proper slope and drainage in the pen design. Check for standing water after cleaning and fix any low spots.

Mistake 4: Inadequate Feeder or Drinker Space

When pigs compete for feed and water, smaller pigs lose out. This leads to uneven growth and increased mortality.

The fix. Provide one feeder space per 4 to 5 pigs and one drinker per 10 to 12 pigs. Place feeders and drinkers in separate areas to reduce competition.

Mistake 5: Drafts at Pig Level

Drafts chill pigs and increase disease risk. Many barns have ventilation systems that work well at human height but create drafts at floor level.

The fix. Use solid pen dividers for the bottom 12 to 18 inches. Adjust air inlets to direct air flow above pig level. Check for drafts with a smoke pencil or by feeling for air movement at floor level.

Mistake 6: Ignoring Seasonal Temperature Changes

Nursery temperatures need adjustment as outside conditions change. A system that works in October may not work in January or July.

The fix. Monitor room temperature daily and adjust ventilation and heating as needed. Have a plan for extreme weather events, including backup heating and emergency ventilation.

Mistake 7: Poor Pen Layout for Cleaning

Pens that are difficult to clean lead to poor sanitation and increased disease risk.

The fix. Design pens with smooth surfaces, removable flooring panels, and good access for pressure washing. Use a clean-in-place system if possible.

Step-by-Step Guide to Designing a Nursery Pen

Follow these steps to design a nursery pen that meets the needs of your pigs and your operation.

Step 1: Determine Your Group Size and Weaning Age

Decide how many pigs will be in each pen. This depends on your weaning schedule, barn layout, and management style. Groups of 20 to 30 pigs work well for most operations. Smaller groups of 10 to 15 are easier to manage but require more pens and more feeder and drinker space per pig.

Weaning age affects space requirements. Pigs weaned at 3 weeks are smaller and need less space initially but will be in the nursery longer. Pigs weaned at 4 to 5 weeks are larger and need more space from the start.

Step 2: Calculate Space Requirements

Use the space recommendations from earlier in this article. Multiply the number of pigs by the space per pig at the expected exit weight. Add 10 percent as a safety margin.

For example, for 25 pigs expected to reach 50 pounds in the nursery, provide 3.0 square feet per pig. That is 75 square feet of pen space. Add 10 percent for a total of 82.5 square feet.

Step 3: Choose Flooring

Select flooring based on your budget, climate, and management style. For the first two weeks, use plastic or woven wire. For the remaining nursery period, you can transition to partially slatted concrete or stay with slatted flooring.

Consider the following factors when choosing flooring:

Cost per square foot: Plastic is most expensive, followed by woven wire, expanded metal, and concrete.
Durability: Concrete lasts longest, followed by expanded metal, plastic, and woven wire.
Pig comfort: Plastic and woven wire are most comfortable, followed by expanded metal and concrete.
Cleaning ease: Plastic and woven wire are easiest to clean, followed by expanded metal and concrete.

Step 4: Design Pen Dimensions

Choose pen dimensions that fit your barn layout and provide the required space per pig. A rectangular shape with a length to width ratio of 1.5:1 to 2:1 works best.

For a 25-pig pen with 82.5 square feet, a pen measuring 6 feet by 14 feet provides 84 square feet. This gives each pig 3.36 square feet, which is adequate.

Step 5: Position Feeders and Drinkers

Place feeders along one wall and drinkers on the opposite wall. This encourages pigs to move and separates the eating and drinking areas.

Calculate feeder space: one feeder space per 4 to 5 pigs. For 25 pigs, you need 5 to 7 feeder spaces, or 50 to 70 inches of trough length.

Calculate drinker space: one nipple drinker per 10 to 12 pigs. For 25 pigs, you need 3 drinkers. Install at least 2, but 3 is better.

Step 6: Plan Environmental Control

Determine your heating and ventilation needs. For most nurseries, a combination of forced-air heating and mechanical ventilation works well.

Calculate ventilation requirements based on the number of pigs and the season. For 25 pigs in summer, you need 500 to 750 cfm of air movement. In winter, you need 50 to 125 cfm.

Plan for supplemental heat in the first week. Heat lamps or heat pads over the lying area provide the extra warmth piglets need.

Step 7: Consider Manure Handling

Decide how you will handle manure. Options include:

Deep pit: Manure falls through slats into a pit below. This is the most common system for large operations.
Pull plug or flush: Manure is collected in a shallow pit and flushed or drained periodically.
Scrape or solid removal: Manure is scraped from solid floors or collected from slatted floors.

Your manure handling system affects flooring choice and pen design. Fully slatted floors work with deep pit or flush systems. Partially slatted floors may require more labor for manure removal.

Step 8: Review and Refine

Before building, review your design with a swine specialist or experienced producer. Check for common mistakes such as inadequate space, poor drainage, or drafts at pig level.

Consider future needs. Will you change weaning ages or group sizes? Can the pen be modified if needed? A flexible design is more valuable than one that is optimized for a single scenario.

Monitoring and Recordkeeping

Once your nursery pens are built and pigs are in place, ongoing monitoring is essential. Track key performance indicators and adjust your management as needed.

Key Metrics to Track

Mortality rate. Target less than 2 percent for the nursery phase. If mortality exceeds 3 percent, investigate causes such as disease, poor environment, or management issues.

Average daily gain. Target 0.75 to 1.0 pounds per day for nursery pigs. Low ADG may indicate inadequate feed intake, poor health, or environmental stress.

Feed conversion ratio. Target 1.4 to 1.6 pounds of feed per pound of gain in the nursery. High FCR may indicate feed waste, digestive issues, or poor feed quality.

Water intake. Monitor water usage to ensure pigs are drinking adequately. Low water intake can cause feed intake to drop.

Body condition and uniformity. Check pigs regularly for signs of poor condition or uneven growth. Group sizes and feeder space may need adjustment if some pigs are falling behind.

Recordkeeping System

Keep records for each group of pigs, including:

Weaning date and average weaning weight
Number of pigs placed and number removed
Deaths and causes
Feed usage and cost
Medication and treatment records
Temperature and ventilation settings
Any problems or observations

Use these records to identify trends and make improvements. Compare performance across groups to see if pen design changes are working.

Regular Checks

Daily checks. Walk through the nursery at least twice daily. Check temperature, ventilation, feed and water supply, and pig behavior. Look for signs of disease, injury, or distress.

Weekly checks. Clean and disinfect pens as needed. Check flooring for damage. Test drinker flow rates. Adjust feeder settings as pigs grow.

Between groups. After each group leaves the nursery, thoroughly clean and disinfect all surfaces. Remove and clean flooring panels. Check for repairs needed before the next group arrives.

When to Call a Veterinarian or Extension Agent

Most nursery management decisions can be handled by the producer. However, some situations require professional help.

Call a Veterinarian When

Mortality exceeds 3 percent or is rising rapidly
Multiple pigs show signs of respiratory disease, diarrhea, or neurological problems
Pigs are not eating or drinking normally
You suspect a disease outbreak that could spread to other groups
You need help developing a vaccination or treatment protocol

Call an Extension Agent When

You are planning a new nursery facility and need design advice
You want to evaluate different flooring or ventilation options
You need help interpreting performance data
You are considering changes to weaning age or group size
You need information on current best practices or regulations

Questions to Ask When You Call

Be prepared to provide:

Number of pigs affected and total group size
Age and weight of affected pigs
Clinical signs and duration
Recent changes in management or environment
Your current vaccination and treatment protocols

The more information you provide, the better advice you will receive.

Frequently Asked Questions

How much space does a nursery pig need?

A pig from 25 to 50 pounds needs 2.5 to 3.0 square feet of pen space on fully slatted floors. Pigs from 10 to 25 pounds need 1.5 to 2.0 square feet. Pigs from 50 to 70 pounds need 3.0 to 4.0 square feet. These figures assume groups of 20 to 30 pigs. If you use partially slatted floors with a solid lying area, you can reduce total space slightly because pigs use the solid area for resting.

What is the best flooring for nursery pigs?

Plastic slats and woven wire are the best options for newly weaned pigs. They are warm, comfortable, and gentle on feet. Expanded metal and bare concrete are too cold and abrasive for young pigs. If you use concrete, cover the lying area with rubber mats or plastic slats for the first two weeks. As pigs grow past 30 pounds, they can tolerate concrete slats.

How many pigs should be in one nursery pen?

Groups of 10 to 30 pigs work well for most operations. Smaller groups of 10 to 15 pigs reduce competition and make it easier to monitor individual pigs. Larger groups of 30 to 50 pigs are more space efficient but require more feeder and drinker space. Choose a group size that matches your barn layout and management style.

What temperature should a nursery room be?

Newly weaned pigs need 85 to 90 degrees Fahrenheit for the first week. Reduce temperature by 2 to 3 degrees each week. By week 4, the nursery can be at 75 to 78 degrees. By week 6, pigs are comfortable at 70 to 75 degrees. Always measure temperature at pig level, not at human eye level.

How many nipple drinkers do I need per pen?

Provide one nipple drinker per 10 to 12 pigs, with a minimum of two drinkers per pen. Place drinkers on the opposite side of the pen from the feeder to encourage movement and reduce competition. Check flow rates regularly and clean drinkers between groups.

How much feeder space do nursery pigs need?

Provide one feeder space per 4 to 5 pigs. A feeder space is 8 to 10 inches of trough length. For 20 pigs, you need 4 to 5 feeder spaces, or 40 to 50 inches of trough length. Adjust feeder height so the trough lip is at shoulder height of the smallest pig.

Can I use concrete slats for nursery pigs?

Yes, but not for young piglets. Concrete is cold and abrasive and can cause foot injuries and chilling in pigs under 30 pounds. If you use concrete slats, cover the lying area with rubber mats or plastic slats for the first two weeks after weaning. After pigs reach 30 to 40 pounds, they can tolerate concrete slats.

How do I reduce ammonia levels in my nursery?

Keep floors clean and dry. Remove manure regularly. Ensure proper ventilation to remove ammonia gas. Ammonia levels should stay below 10 parts per million. If levels remain high, increase ventilation rate, improve manure handling, or reduce stocking density.

Related Farming Guides

Nursery Pen Design for Weaned Pig Health

This section will be populated with related farming guides programmatically after generation. Check back soon for links to additional resources on swine housing, piglet care, and nursery management.

Related Clinical & Scientific Guides

References

USDA Farm Management: https://www.farmers.gov/
FAO Farm Management: https://www.fao.org/farmer-field-schools/en/
FAO Animal Production and Health: https://www.fao.org/animal-production/en/
WOAH (World Organisation for Animal Health): https://www.woah.org/en/home/

This article is educational and is not a substitute for veterinary diagnosis, treatment, public-health guidance, or regulatory reporting.