| Typical Capacity per Room | 300–600 piglets | 500–1,000 piglets | 800–1,500 piglets | 500–1,000 piglets per room for flexible batch management |
| Recommended Space Allowance | 0.32–0.38 m² per piglet | 0.28–0.34 m² per piglet | 0.26–0.32 m² per piglet | At least 0.30 m² per piglet, adjusted for local regulations and final weight |
| Indicative Building Cost | US$350–650 per piglet place | US$650–1,100 per piglet place | US$900–1,500 per piglet place | Compare total installed cost, including flooring, ventilation, heating, electrical work, and drainage |
| Annualized Capital Cost | US$35–65 per piglet place/year | US$55–95 per piglet place/year | US$70–125 per piglet place/year | Use a 12–20 year building life and 7–10% annual capital charge for planning |
| Temperature Control | Limited; strongly affected by outdoor weather | Automatic heating and mechanical ventilation | Multi-zone sensors, variable-speed ventilation, and automated alarms | Stable room temperature with automatic adjustment and backup alarms |
| Target Temperature After Placement | 24–28°C, with seasonal variation | 24–28°C during the first week, gradually reduced thereafter | 24–28°C during the first week, reduced according to piglet weight and behavior | Set points should follow piglet size, floor type, air speed, and observed behavior |
| Minimum Ventilation Performance | Natural airflow; inconsistent in extreme weather | Approximately 0.10–0.20 m³/min per piglet during minimum ventilation | Approximately 0.10–0.25 m³/min per piglet with variable-speed control | Prevent condensation and harmful gas accumulation without creating drafts at piglet level |
| Energy Use for Heating and Ventilation | Approximately 8–18 kWh per piglet place/year | Approximately 12–25 kWh per piglet place/year | Approximately 9–20 kWh per piglet place/year with efficient controls | Evaluate energy per piglet weaned, not only energy per building |
| Labor Requirement | High; approximately 3.0–5.0 labor hours per 100 piglets per batch | Moderate; approximately 2.0–3.5 labor hours per 100 piglets per batch | Lower; approximately 1.5–3.0 labor hours per 100 piglets per batch | Choose automation only where staff can maintain and troubleshoot it |
| Feed Conversion During Nursery Stage | Approximately 1.45–1.75 | Approximately 1.35–1.60 | Approximately 1.30–1.55 | Target improvement through stable temperature, water access, feed presentation, and health control |
| Typical Daily Gain | Approximately 350–450 g/day | Approximately 400–500 g/day | Approximately 420–520 g/day | Measure by starting weight, final weight, genetics, diet, and health status |
| Nursery Mortality Target | Usually below 3.0% with effective management | Usually below 2.5% with consistent environmental control | Potentially below 2.0% when biosecurity and management are strong | Use farm baseline and rolling 12-month performance rather than a single batch |
| Water Delivery Standard | At least 1 drinker per 10–12 piglets | At least 1 drinker per 10–12 piglets | At least 1 drinker per 10 piglets, with accessible backup points | Provide clean water continuously and verify flow rate at piglet level |
| Floor and Drainage | Partial slats or concrete; cleaning can be labor-intensive | Partial or fully slatted systems with improved manure separation | Durable plastic or coated slats, optimized drainage, and easy wash-down access | Prioritize non-slip surfaces, low injury risk, drainage, and replacement availability |
| Cleaning and Turnaround Time | 24–48 hours, depending on layout and equipment | 18–36 hours with improved drainage and washing access | 12–24 hours when designed for all-in/all-out production | Allow adequate drying and disinfection time between groups |
| Expected Structural Service Life | 15–25 years with regular maintenance | 20–30 years with corrosion protection and planned repairs | 20–30 years for the structure; controls and sensors may need replacement every 5–10 years | Separate building life from the replacement cycle of fans, controllers, sensors, and feeders |
| Maintenance Cost | Approximately 2–4% of installed cost per year | Approximately 3–5% of installed cost per year | Approximately 4–7% of installed cost per year | Include preventive maintenance, spare parts, calibration, and emergency service |
| Biosecurity Potential | Moderate; open access can increase contamination risk | High when designed with controlled entry and separate room airflow | High; supports zoning, batch separation, monitoring, and automated alerts | Use all-in/all-out rooms, dedicated tools, controlled entry, and clear clean/dirty routes |
| Estimated Payback Period for Efficiency Upgrades | Not applicable or limited | Approximately 4–8 years | Approximately 5–10 years | Calculate payback from reduced mortality, improved gain, labor savings, energy use, and extra saleable output |
| Best Fit | Small farms, mild climates, and low initial capital budgets | Commercial farms seeking a balance between control and investment | Large or expanding farms with skilled staff and reliable technical support | Select the design that meets production goals without exceeding local labor, power, and maintenance capacity |