# Pig Barn Flooring Options: Slatted, Solid, and Bedded Systems


## Key Takeaways

- Slatted floors, typically constructed from concrete, plastic, or metal, offer efficient manure drainage into under-floor pits, reducing direct contact with waste. However, improper slot width (10-12mm for nurseries, 18-20mm for finishers) and rough surfaces can lead to foot lesions, lameness, and entrapment, necessitating dedicated pit ventilation to manage hazardous gases like H2S and ammonia.
- Solid floors, primarily concrete, require a 2-4% slope for drainage and frequent manual scraping or flushing for manure removal, which increases labor and water usage. Without bedding, they offer poor animal comfort and elevate risks of skin abrasions and lameness; bedding addition improves insulation and moisture absorption but necessitates higher ventilation rates to manage humidity.
- Deep-bedded systems utilize a thick layer of absorbent material (straw, wood chips) to create a composting pack, effectively managing manure as a solid and eliminating liquid manure storage. This system offers high animal comfort and welfare but demands high ventilation rates to control moisture and ammonia, and significant labor for bedding management and pack removal.
- Flooring selection critically impacts manure management, with slatted systems requiring pit management and potential gas control, solid floors necessitating frequent cleaning or flushing, and deep-bedded systems producing solid waste requiring removal. The choice dictates infrastructure needs, including pit excavation, drainage systems, and ventilation design tailored to gas and moisture control.
- Animal welfare is directly influenced by flooring, with potential for foot and leg lesions on poorly designed slatted floors, increased lameness and skin issues on barren solid floors, and superior comfort and behavioral expression in deep-bedded systems. Monitoring lameness rates (exceeding 5-10% warrants investigation) and air quality (ammonia >25 ppm, H2S >5 ppm) are crucial indicators of flooring-related issues.
- Total cost of ownership extends beyond initial construction, encompassing ongoing expenses for ventilation, heating, bedding materials, labor for manure and bedding handling, and potential manure disposal. Slatted floors often have higher upfront costs but lower bedding and labor expenses, while deep-bedded systems have lower initial investment but higher recurring operational costs.

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Selecting a flooring system for a swine barn directly affects manure management, animal health, labor requirements, and facility cost. This article compares slatted, solid, and deep-bedded flooring options for new construction or retrofit projects. The comparison covers material choices, drainage characteristics, manure handling methods, animal welfare considerations, and cost factors. The intended reader is a swine producer evaluating flooring types for finishing, gestation, or farrowing barns.

## At a Glance: Flooring System Comparison

| Feature | Slatted Floor | Solid Floor (with bedding or scraping) | Deep-Bedded System |
|---------|---------------|----------------------------------------|---------------------|
| Manure handling | Under-floor pit or flush system | Daily scraping or flush | Bedding pack absorbs urine, periodic removal |
| Drainage | Excellent, waste falls through slots | Poor, requires slope and frequent cleaning | Moderate, bedding absorbs moisture |
| Animal comfort | Moderate, can cause foot lesions if slats are poorly designed | Good with bedding, poor without bedding | High, deep bedding provides cushioning and warmth |
| Labor requirement | Low for manure removal, moderate for pit management | High for scraping or flush cleaning | High for bedding addition and pack removal |
| Initial cost | High (slats, pit construction, ventilation) | Moderate (concrete floor, drainage) | Low to moderate (bedding materials, housing structure) |
| Ventilation needs | Pit ventilation required for gas control | Room ventilation, floor drying important | High ventilation rate needed for moisture and ammonia |
| Suitability for stage | Finishing, gestation, farrowing (with modifications) | Nursery, farrowing, small-scale finishing | Gestation, farrowing (straw-based), organic systems |

## Slatted Floor Systems

### Materials and Construction

Slatted floors consist of concrete, plastic, or metal slats with gaps that allow manure and urine to fall into a collection pit below. Concrete slats are the most common choice for finishing and gestation barns due to durability and load-bearing capacity. Plastic slats are lighter and often used in nursery pens or retrofit applications. Metal slats, typically cast iron or steel, are less common but appear in some farrowing stalls.

Slot width and spacing must match pig size. For nursery pigs, slot openings of 10 to 12 millimeters prevent feet from slipping through. For finishing pigs, openings of 18 to 20 millimeters are standard. Gestation stalls use similar spacing. Wider openings increase the risk of foot injuries and leg entrapment. Narrower openings reduce drainage efficiency and increase manure buildup on the slats.

### Manure Handling and Pit Management

Slatted floors are paired with a manure collection pit that may be shallow (0.6 to 1.2 meters deep) or deep (2.4 meters or more). Shallow pits require more frequent pumping but allow better pit ventilation. Deep pits store manure for longer periods, reducing labor but increasing the risk of gas accumulation.

Continuous pit recirculation systems can be used to manage manure characteristics. Research on aerobically treated manure in finishing barns with continuous pit recirculation has examined odorous material emissions and seasonal atmospheric conditions (Animal bioscience, 2022, pubmed.ncbi.nlm.nih.gov/34237917, Animal bioscience, 2022, pubmed.ncbi.nlm.nih.gov/35760401). These systems circulate pit liquid to maintain aerobic conditions, which can reduce odor and improve air quality. However, the equipment and energy costs must be weighed against benefits.

Acidification of slurry is another option for reducing ammonia and methane emissions. A retrofittable acidification system for fattening pig barns has been studied for its deployment and emission reduction potential (Journal of environmental management, 2023, pubmed.ncbi.nlm.nih.gov/36669315). Producers considering acidification should evaluate compatibility with existing pit infrastructure and manure application plans.

### Animal Welfare and Health

Slatted floors keep pigs cleaner than solid floors without bedding, which reduces the risk of skin infections and parasite exposure. However, slats can cause foot and leg problems if the surface is too rough, the edges are sharp, or the gaps are incorrect. Concrete slats with exposed aggregate can abrade hooves and cause lameness. Plastic slats with smooth surfaces reduce abrasion but may become slippery when wet.

The space allowance per pig interacts with flooring type. Research on pen space allowances for finishing pigs has examined growth performance under different space conditions (Animals, 2025, pubmed.ncbi.nlm.nih.gov/40427328). Producers should ensure that slatted pens provide adequate space for all pigs to lie down simultaneously without crowding, which reduces the risk of pressure sores and joint damage.

### Ventilation and Air Quality

Slatted floors with under-floor pits require dedicated pit ventilation to remove gases such as hydrogen sulfide, methane, and ammonia. Pit fans should run continuously or on a timer to prevent gas buildup. Room ventilation must be balanced with pit ventilation to maintain positive pressure in the barn and prevent gas migration into the animal zone.

Seasonal atmospheric conditions in barns with continuous pit recirculation systems have been characterized, showing that temperature and humidity affect gas release rates (Animal bioscience, 2022, pubmed.ncbi.nlm.nih.gov/35760401). Producers should monitor gas levels with fixed sensors and respond to alarms immediately. Evaporative pad cooling impacts on barn environment and finishing pig performance have also been studied (Applied Engineering in Agriculture, 2022, doi.org/10.13031/aea.14810). Cooling systems can reduce heat stress but may increase humidity, which affects pit gas dynamics.

## Solid Floor Systems

### Concrete Solid Floors

Solid concrete floors are the simplest and least expensive flooring option. They are common in small-scale and traditional barns, as well as in nursery and farrowing facilities where bedding is used. Solid floors require a slope of 2 to 4 percent toward a drain or gutter to prevent liquid pooling. Without adequate slope, urine and wash water accumulate, leading to slippery surfaces, increased ammonia levels, and higher risk of foot infections.

Manure removal from solid floors is typically done by scraping, flushing, or manual cleaning. Scraping can be done with a tractor-mounted blade, a pull scraper system, or by hand in small pens. Flush systems use water to move manure to a collection point, but they increase water use and produce larger volumes of liquid manure. Research on alternatives for animal drinking and barn cleaning to reduce water use in swine production has examined methods to minimize water consumption (American Society of Agricultural and Biological Engineers Annual International Meeting 2013, 2013, api.elsevier.com/content/abstract/scopus_id/84881653695). Producers should evaluate water-saving drinkers and cleaning protocols to reduce waste.

### Bedding on Solid Floors

Adding bedding to solid floors improves animal comfort, provides thermal insulation, and absorbs moisture. Common bedding materials include straw, sawdust, wood shavings, and rice hulls. The choice depends on local availability, cost, and manure management system. Straw is the most common bedding for deep-bedded systems because it provides good insulation and can be composted.

Bedding must be added regularly to maintain a dry surface. Wet bedding increases the risk of respiratory disease, skin infections, and ammonia production. The frequency of bedding addition depends on pig density, ventilation rate, and ambient temperature. In cold weather, more bedding is needed for insulation. In warm weather, less bedding is needed, but ventilation must be increased to remove moisture.

### Drainage and Moisture Control

Solid floors without bedding require careful drainage design. The floor should slope to a gutter or drain that carries liquid to a collection point. Drains must be large enough to handle wash water and rainfall if the barn is open-sided. Clogged drains cause flooding and create unsanitary conditions.

Moisture control is critical for solid floors. High humidity in the barn slows drying and increases the risk of ammonia release. Ventilation systems must be sized to remove moisture from the animal zone. In cold weather, minimum ventilation rates must be maintained to prevent condensation on walls and ceilings.

### Animal Welfare on Solid Floors

Pigs on solid floors without bedding are at higher risk for skin abrasions, pressure sores, and lameness compared to pigs on slatted or bedded floors. The hard surface provides no cushioning, and urine and feces accumulate if cleaning is infrequent. Producers using solid floors must commit to a rigorous cleaning schedule.

Solid floors with bedding provide better welfare outcomes. The bedding offers cushioning, reduces heat loss, and allows pigs to express rooting behavior. Research on people's evaluation of pigs in different farm settings has shown that bedded systems are perceived more positively by the public (PloS one, 2019, pubmed.ncbi.nlm.nih.gov/30753189). However, bedding increases labor and material costs and may not be compatible with liquid manure systems.

## Deep-Bedded Systems

### System Design and Materials

Deep-bedded systems use a thick layer of bedding material that accumulates over the production cycle. The bedding pack absorbs urine and manure, creating a composting environment that generates heat. This heat can reduce heating costs in cold weather, but it also increases the risk of ammonia and moisture buildup if ventilation is inadequate.

Common deep-bedding materials include straw, corn stalks, wood chips, and sawdust. Straw is preferred for its absorbency and insulating properties. Wood chips and sawdust decompose more slowly but can be more difficult to manage in wet conditions. The bedding depth typically starts at 30 to 50 centimeters and increases as fresh material is added.

### Manure Management in Deep-Bedded Systems

Manure in deep-bedded systems is managed as a solid. The bedding pack is removed after each group of pigs is marketed, typically every 4 to 6 months for finishing pigs. The spent bedding can be composted and used as a soil amendment. This system eliminates the need for liquid manure storage and reduces the risk of spills during land application.

However, deep-bedded systems produce large volumes of solid waste that must be handled and stored. The carbon-to-nitrogen ratio of the bedding pack affects composting speed and odor production. Producers should test the spent bedding for nutrient content before land application to avoid over-application of phosphorus and potassium.

### Ventilation and Air Quality

Deep-bedded systems require high ventilation rates to remove moisture and ammonia. The composting process generates heat and water vapor, which can lead to condensation on walls and ceilings if ventilation is insufficient. In cold weather, the heat from the bedding pack can reduce supplemental heating needs, but the ventilation rate must still be maintained to prevent respiratory problems in pigs.

Ammonia levels in deep-bedded barns can be higher than in slatted-floor barns if the bedding pack becomes too wet or if ventilation is inadequate. Producers should monitor ammonia concentrations with handheld sensors or fixed monitors. Levels above 25 parts per million require immediate action, such as increasing ventilation, adding dry bedding, or removing wet material.

### Animal Welfare in Deep-Bedded Systems

Deep-bedded systems provide excellent animal welfare outcomes. The bedding offers cushioning, thermal comfort, and opportunities for rooting and foraging. Pigs in deep-bedded systems have lower rates of tail biting and other behavioral problems compared to pigs in barren environments.

However, deep-bedded systems can present health risks if not managed properly. Wet bedding promotes the growth of bacteria and fungi, leading to respiratory disease and skin infections. The composting process can generate heat that causes heat stress in warm weather. Producers must monitor bedding moisture and temperature and adjust management accordingly.

### Cost and Labor Considerations

Deep-bedded systems have lower initial construction costs than slatted-floor systems because they do not require slats, pits, or complex ventilation systems. However, the ongoing costs of bedding material and labor for bedding addition and pack removal can be significant. The cost of bedding varies by region and availability. Producers should calculate the total cost per pig placed, including bedding, labor, and manure disposal.

Labor requirements for deep-bedded systems are higher than for slatted-floor systems. Bedding must be added weekly or biweekly, and the pack must be removed between groups. In large operations, mechanized bedding handling equipment can reduce labor, but the capital cost of such equipment must be considered.

## Practical Implementation Steps

### Step 1: Assess Existing Barn Conditions

Before selecting a flooring system, evaluate the current barn structure, drainage, ventilation, and manure handling infrastructure. For retrofit projects, the existing floor type and condition will influence the feasibility of conversion. A solid concrete floor can be retrofitted with slats by removing sections of concrete and installing precast slats over a new pit. However, this is a major renovation that may require structural reinforcement.

### Step 2: Match Flooring to Production Stage

Different production stages have different flooring requirements. Farrowing sows and piglets need a solid surface with bedding or a mat to prevent chilling and injury. Nursery pigs need a floor that provides traction and prevents foot damage. Finishing pigs can be housed on slatted, solid, or bedded floors, but the choice affects growth rate, feed efficiency, and mortality.

### Step 3: Evaluate Manure Handling System

The flooring system determines the manure handling method. Slatted floors require a pit and pump system. Solid floors require scraping or flushing. Deep-bedded systems require solid manure handling equipment. The choice must be compatible with local regulations for manure storage and land application.

### Step 4: Calculate Total Cost of Ownership

Initial construction cost is only one factor. Operating costs for ventilation, heating, bedding, labor, and manure disposal vary significantly between systems. A slatted-floor barn may have higher initial cost but lower labor and bedding costs. A deep-bedded barn may have lower initial cost but higher ongoing expenses. Producers should calculate the cost per pig placed over the expected life of the facility.

### Step 5: Plan for Ventilation and Air Quality

Ventilation requirements differ by flooring type. Slatted floors need pit ventilation. Solid floors need room ventilation with attention to floor drying. Deep-bedded systems need high ventilation rates to manage moisture and ammonia. Work with a ventilation specialist to design a system that meets the specific needs of the chosen flooring.

## Records and Measurements

### Manure Production Records

Track the volume and nutrient content of manure removed from the barn. For slatted-floor systems, record the frequency of pit pumping and the volume removed. For deep-bedded systems, record the weight or volume of spent bedding removed and the nutrient analysis. These records are needed for nutrient management planning and regulatory compliance.

### Animal Health Records

Record the incidence of lameness, foot lesions, skin infections, and respiratory disease by pen and flooring type. Compare health outcomes between different flooring systems to identify problems early. If lameness rates exceed 5 percent in a pen, investigate the floor surface, slot width, and bedding condition.

### Ventilation and Air Quality Records

Monitor and record temperature, humidity, and gas concentrations (ammonia, hydrogen sulfide, carbon dioxide) in the barn. Use fixed sensors with data logging or handheld meters for spot checks. Record the date, time, and location of each measurement. If ammonia levels exceed 25 parts per million or hydrogen sulfide exceeds 5 parts per million, take corrective action and document the response.

### Bedding Use Records

For bedded systems, record the type and amount of bedding added each week, the depth of the bedding pack, and the moisture content. Track the cost of bedding per pig placed. If bedding use exceeds 50 kilograms per pig for finishing, evaluate whether the system is being over-bedded or if drainage is inadequate.

## Common Failure Patterns

### Slatted Floor Failures

- **Slat breakage**: Concrete slats can crack or break under heavy loads, especially if the reinforcement is inadequate. Broken slats create gaps that can trap pig feet. Inspect slats regularly and replace damaged sections immediately.
- **Slot clogging**: Manure can bridge across slots if the gap is too narrow or if the pit ventilation is insufficient. Clogged slots reduce drainage and increase ammonia levels. Clean slots with a high-pressure washer or mechanical scraper.
- **Pit gas accumulation**: Hydrogen sulfide can accumulate in deep pits, especially during agitation before pumping. This gas is lethal at high concentrations. Never enter a pit without proper ventilation and gas monitoring equipment.

### Solid Floor Failures

- **Poor drainage**: Floors without adequate slope develop puddles that increase ammonia and promote foot infections. Regrade the floor or install additional drains if puddling occurs.
- **Slippery surfaces**: Wet concrete floors become slippery, increasing the risk of falls and injuries. Add texture to the floor surface or use bedding to improve traction.
- **Inadequate cleaning**: Solid floors require daily cleaning to remove manure. If cleaning is delayed, ammonia levels rise and pigs become dirty. Implement a cleaning schedule and verify compliance.

### Deep-Bedded System Failures

- **Wet bedding pack**: If the bedding becomes saturated, it stops absorbing moisture and generates ammonia. Add dry bedding immediately and increase ventilation. If the pack is too wet, remove the wet material and start fresh.
- **Heat stress**: The composting process generates heat that can cause heat stress in warm weather. Increase ventilation, reduce bedding depth, or provide cooling such as sprinklers or evaporative pads.
- **Respiratory disease**: High ammonia and dust levels in deep-bedded barns can cause respiratory problems. Monitor air quality and adjust ventilation or bedding management as needed.

## Welfare and Safety Context

### Animal Welfare

Flooring directly affects pig welfare through comfort, health, and behavior. Slatted floors can cause foot lesions and lameness if not properly designed and maintained. Solid floors without bedding provide poor comfort and increase the risk of skin infections. Deep-bedded systems offer the best welfare outcomes but require careful management to prevent respiratory and heat stress.

Producers should observe pigs daily for signs of lameness, skin lesions, and abnormal behavior. Pigs that are reluctant to stand or move should be examined and treated promptly. If lameness rates exceed 10 percent in a pen, the flooring system should be evaluated and modified.

### Worker Safety

Worker safety is a critical concern in swine barns. Slatted-floor barns with pits pose risks of hydrogen sulfide poisoning, methane explosion, and oxygen deficiency. Workers should never enter a pit without a self-contained breathing apparatus and a safety harness. Solid-floor and deep-bedded barns have lower gas risks but higher risks of slips, falls, and musculoskeletal injuries from manual cleaning and bedding handling.

A Markov model for fate and transport of Staphylococcus aureus at a swine barn has been developed to assess worker exposure risks (Annals of work exposures and health, 2026, pubmed.ncbi.nlm.nih.gov/41564269). Producers should implement biosecurity and hygiene protocols to reduce pathogen transmission between animals and workers.

### [Food Safety](/knowledge/bacteria/livestock-bacteria/cooking-chicken-bacteria-prevention)

Flooring systems affect food safety through their impact on pig cleanliness and pathogen load. Pigs raised on slatted floors are generally cleaner than those on solid floors without bedding. Deep-bedded systems can produce pigs with dirtier hides, which increases the risk of carcass contamination during slaughter.

Producers should implement pre-harvest food safety practices, including cleaning pens between groups, maintaining dry bedding, and minimizing contact between pigs and manure. Swine carcass characterization studies have examined desiccation environments and temperature effects on carcass quality (American Society of Agricultural and Biological Engineers Annual International Meeting 2021, 2021, doi.org/10.13031/aim.202100821, Applied Engineering in Agriculture, 2023, doi.org/10.13031/aea.14844). These studies highlight the importance of maintaining clean pigs for food safety.

### Regulatory Context

Flooring systems must comply with local regulations for manure storage, nutrient management, and air emissions. Some regions require minimum floor space per pig, which varies by flooring type. Producers should consult with their local extension service or regulatory agency to ensure compliance.

Factor analysis of swine farm management practices has been conducted in some regions to identify factors associated with successful operations (Preventive [Veterinary Medicine](/blog/careers/veterinary-medicine-careers-from-clinical-practice-to-public-health), 1994, doi.org/10.1016/0167-5877(94)90112-0). Producers can use these analyses to benchmark their management practices against industry standards.

## Professional Escalation Criteria

Consult a swine veterinarian, agricultural engineer, or extension specialist if any of the following conditions occur:

- Lameness rates exceed 10 percent in a pen and do not respond to treatment
- Ammonia levels consistently exceed 25 parts per million despite ventilation adjustments
- Hydrogen sulfide levels exceed 5 parts per million in the animal zone
- Slat breakage or floor damage affects more than 5 percent of the pen area
- Bedding pack temperature exceeds 60 degrees Celsius, indicating excessive composting
- Manure pit gas levels cause worker symptoms such as headache, dizziness, or respiratory irritation
- Regulatory citations for manure storage or air emissions violations

## Frequently Asked Questions

### What is the best flooring for finishing pigs?

The best flooring depends on your manure management system, climate, and labor availability. Slatted floors are the most common choice for large-scale finishing operations because they allow efficient manure removal and keep pigs clean. Deep-bedded systems are preferred for organic production or when liquid manure handling is not feasible. Solid floors with bedding can work for small-scale operations but require more labor.

### How often should slatted floors be cleaned?

Slatted floors do not require daily cleaning because manure falls through the slots. However, the slats themselves should be inspected weekly for manure buildup, especially in areas where pigs defecate. If manure accumulates on the slats, clean them with a high-pressure washer or mechanical scraper. The pit should be pumped according to the manure storage capacity and local regulations.

### Can I convert a solid floor barn to slatted floors?

Yes, but it is a major renovation. The existing concrete floor must be removed, a pit excavated, and precast slats installed. The barn structure may need reinforcement to support the slats and pit walls. Ventilation systems must be modified to include pit ventilation. The cost of conversion is often comparable to building a new barn, so a cost-benefit analysis is recommended.

### What bedding material is best for deep-bedded systems?

Straw is the most common bedding material for deep-bedded systems because it is absorbent, provides good insulation, and can be composted. Wood shavings and sawdust are alternatives but may be more expensive and decompose more slowly. The best material depends on local availability and cost. Producers should test different materials to determine which works best in their climate and management system.

### How do I control ammonia in a deep-bedded barn?

Ammonia control in deep-bedded barns requires adequate ventilation, dry bedding, and proper carbon-to-nitrogen ratio. Add dry bedding regularly to absorb moisture and dilute nitrogen. Increase ventilation rates to remove ammonia gas. If ammonia levels remain high, remove wet bedding and replace it with fresh material. Consider using bedding with a high carbon content, such as straw or wood chips, to improve nitrogen capture.

### What are the signs of poor flooring in a pig barn?

Signs of poor flooring include increased lameness, foot lesions, skin abrasions, dirty pigs, and high ammonia levels. Pigs may be reluctant to stand or move, and they may spend more time lying down than normal. If you observe these signs, inspect the floor surface, slot width, bedding condition, and ventilation system. Address problems promptly to prevent welfare issues and production losses.

### How does flooring affect pig growth rate?

Flooring affects growth rate through its impact on comfort, health, and feed efficiency. Pigs on well-designed slatted floors or deep-bedded systems typically have better growth rates than pigs on solid floors without bedding. Poor flooring that causes lameness or stress reduces feed intake and growth. Space allowance also interacts with flooring type, so ensure adequate space per pig for the chosen system.

### What is the cost difference between slatted and deep-bedded systems?

Slatted-floor systems have higher initial construction costs due to slats, pits, and ventilation equipment. Deep-bedded systems have lower initial costs but higher ongoing costs for bedding material and labor. The total cost per pig placed depends on the scale of operation, local material costs, and labor rates. Producers should calculate the net present value of each option over the expected life of the facility.

## Related Farming Guides

- [Manure Management For Pig Farms](/knowledge/animal-farming/swine/manure-management-for-pig-farms)
- [Systems Biology](/blog/news/systems-biology)
- [Pig Barn Ventilation And Thermal Comfort](/knowledge/animal-farming/swine/pig-barn-ventilation-and-thermal-comfort)
- [Pig Lameness Monitoring And Flooring Management](/knowledge/animal-farming/swine/pig-lameness-monitoring-and-flooring-management)
- [Swine Barn Cleaning Disinfection And Downtime](/knowledge/animal-farming/swine/swine-barn-cleaning-disinfection-and-downtime)

## Related Clinical & Scientific Guides

* [Pig Enrichment Programs and Behavior Monitoring](/knowledge/animal-farming/swine/pig-enrichment-programs-and-behavior-monitoring)
* [Swine Handling Facility Design for Safe Pig Movement](/knowledge/animal-farming/swine/swine-handling-facility-design-safe-pig-movement)
* [Swine Feeding Management for Grow-Finish Pigs](/knowledge/animal-farming/swine/swine-feeding-management-for-grow-finish-pigs)


## References and Further Reading

- [www.ars.usda.gov](https://www.ars.usda.gov/animal-production-and-protection)
- [www.aphis.usda.gov](https://www.aphis.usda.gov/livestock-poultry-disease/swine)
- [www.merckvetmanual.com](https://www.merckvetmanual.com/management-and-nutrition)
- [Effect of aerobically treated manure on odorous material emissions from a swine finishing barn equipped with a continuous pit recirculation system.](https://pubmed.ncbi.nlm.nih.gov/34237917). Animal bioscience, 2022.
- [Seasonal atmospheric characteristics in a swine finishing barn equipped with a continuous pit recirculation system using aerobically treated manure.](https://pubmed.ncbi.nlm.nih.gov/35760401). Animal bioscience, 2022.
- [A Markov model for fate and transport of Staphylococcus aureus at a swine barn and proposed interventions to reduce worker exposures.](https://pubmed.ncbi.nlm.nih.gov/41564269). Annals of work exposures and health, 2026.
- [Does picture background matter? People's evaluation of pigs in different farm settings.](https://pubmed.ncbi.nlm.nih.gov/30753189). PloS one, 2019.
- [Effect of Pen Space Allowances on Growth Performance of Finishing Pigs.](https://pubmed.ncbi.nlm.nih.gov/40427328). Animals : an open access journal from MDPI, 2025.
- [Acidification of slurry to reduce ammonia and methane emissions: Deployment of a retrofittable system in fattening pig barns.](https://pubmed.ncbi.nlm.nih.gov/36669315). Journal of environmental management, 2023.
- [Alternatives for animal drinking and barn cleaning to reduce water use in swine production operations](https://api.elsevier.com/content/abstract/scopus_id/84881653695). American Society of Agricultural and Biological Engineers Annual International Meeting 2013 Asabe 2013, 2013.
- [EVAPORATIVE PAD COOLING IMPACTS ON BARN ENVIRONMENT AND FINISHING PIG PERFORMANCE](https://doi.org/10.13031/aea.14810). Applied Engineering in Agriculture, 2022.
- [Swine carcass characterization exposed to a small-scale desiccation environment](https://doi.org/10.13031/aim.202100821). American Society of Agricultural and Biological Engineers Annual International Meeting Asabe 2021, 2021.
- [RESPONSES OF SWINE CARCASSES CONTINUOUSLY EXPOSED TO 43°C INSIDE A SMALL-SCALE FINISHING ROOM](https://doi.org/10.13031/aea.14844). Applied Engineering in Agriculture, 2023.
- [Factor analysis of swine farm management practices on Prince Edward Island](https://doi.org/10.1016/0167-5877%2894%2990112-0). Preventive Veterinary Medicine, 1994.

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