Overview
Pig production remains one of the most efficient ways to convert feed into highquality protein. Modern swine operations blend genetics, precise nutrition, and sound management to achieve fast growth, optimal carcass quality, and profitability. This guide provides a concise, practical reference for producersfrom new entrants to seasoned growerscovering the essential components of a successful pig enterprise.
Breeding & Genetics
Selection Objectives
- Growth rate (average daily gain)
- Feed conversion efficiency
- Carcass leanness and backfat thickness
- Reproductive traits (litter size, mothering ability)
- Disease resistance and robustness
Common Breeding Systems
- Multisite breeding: Use of a dedicated gilt development unit and separate farrowing houses.
- AI (Artificial Insemination): Allows rapid genetic improvement and reduces the need for multiple boars.
- Crossbreeding: Commercial systems often use a threeway cross (e.g., Landrace Yorkshire Duroc) to exploit heterosis.
Maintain detailed performance records. Modern herdmanagement software can calculate estimated breeding values (EBVs) and help you select the best sires for each cycle.
Housing & Management
Facility Design
Good ventilation, temperature control, and biosecurity zones are essential. Typical layout includes:
- Gestation barns 0.81.0m per sow.
- Farrowing pens 2.22.5m per sow with creep area for piglets.
- Nursery rooms 0.4m per piglet.
- Finisher barns 0.50.7m per marketready pig.
Environmental Controls
| Parameter | Ideal Range | Management Tips |
|---|---|---|
| Temperature | 1822C (gestating) 2026C (farrowing) 2024C (nursery) 1822C (finisher) | Use thermostats with automated fans or supplemental heating. |
| Relative Humidity | 5570% | Install dehumidifiers in humid climates. |
| Air Speed | 0.20.3m/s (gestation) 0.30.5m/s (farrowing) | Adjust ventilation louvers; keep drafts away from pigs. |
Cleaning & Disinfection
Implement a cleanincleanout (CICO) protocol between production cycles. Use pressure washing followed by an approved disinfectant (e.g., glutaraldehyde or iodinebased). Allow sufficient contact time before restocking.
Nutrition
Nutrition drives growth, carcass quality, and overall health. Formulate diets that meet or exceed the NRC (National Research Council) nutrient recommendations for each growth phase.
Phase Feeding
Starter (021days)
- Protein: 2024% (crude protein)
- Energy: 3.03.4Mcal ME/kg
- Key additives: colostrum replacer (if needed), electrolytes, zinc oxide (2000ppm) for gut health.
Grower (2270days)
- Protein: 1618%
- Energy: 3.23.5Mcal ME/kg
- Additives: phytase, probiotics, controlled levels of antibiotics or alternatives.
Finisher (71120days)
- Protein: 1214%
- Energy: 3.33.6Mcal ME/kg
- Focus on lean gain: limit lysine excess, add choline and vitaminE.
Key Ingredients
- Corn: Primary energy source; ensure low mycotoxin levels.
- Soybean meal: Main protein; consider soy isolates for higher digestibility.
- Animal proteins: Fishmeal, blood mealuse sparingly to control cost and aminoacid balance.
- Fiber sources: Wheat bran, beet pulphelp gut health but limit inclusion to 10%.
- Fats & oils: Provide dense energy; add 35% for highperformance finishers.
Feed Management Practices
- Store feed in a dry, rodentfree environment.
- Mix feed daily to ensure uniform nutrient distribution.
- Provide ad libitum access for growers and finishers; restrict feed for sows on a schedule.
- Monitor feed intake per pen; a drop of >10% may indicate disease or feed quality issue.
Health & Biosecurity
Vaccination Programs
| Age/Stage | Vaccine(s) | Purpose |
|---|---|---|
| Day0 (colostrum) | Mycoplasma hyopneumoniae, PCV2 | Early protection against respiratory disease. |
| Weaning (2128days) | Porcine parvovirus, Erysipelothrix | Prevent reproductive losses later. |
| Finisher (6070days) | PRRS (if herd status requires) | Control viral pneumonia. |
Common Health Issues & Prevention
- PostWeaning Diarrhea: Use zinc oxide (max 2000ppm) or copper sulfate; maintain clean water.
- Swine Influenza: Biosecurityrestrict visitor access, provide footbaths.
- PRRS (Porcine Reproductive & Respiratory Syndrome): Implement strict line isolation and consider herdlevel eradication protocols.
- Parasites: Deworm at 68weeks and again near market; monitor fecal egg counts.
Biosecurity Checklist
- Dedicated clothing and boots for each zone.
- Vehicle disinfection at entry points.
- Allinallout (AIAO) flow for farrowing rooms.
- Rodent and insect control program.
- Regular staff training on disease recognition.
Economics & Decision Tools
Cost Components
- Feed typically 6570% of total production cost.
- Genetics purchase of boars or AI semen.
- Labor skilled labor for farrowing assistance and health monitoring.
- Facilities depreciation, utilities, maintenance.
- Veterinary & medicines.
Profitability Calculator (example)
Assume a 120day finishing period.
Average market weight: 115kgLiveweight price: $1.75/kgFeed cost: $0.35/kg (average)Feed conversion ratio: 2.7kg feed/kg gainRevenue = 115 1.75 = $201.25Feed used = 115 2.7 = 310.5kgFeed cost = 310.5 0.35 = $108.68Gross margin = $201.25 $108.68 = $92.57 per pig
Adjust the variables for your own market prices, feed formulations, and conversion rates to evaluate different scenarios.
Key Management Indicators
- Average Daily Gain (ADG)
- Feed Conversion Ratio (FCR)
- Mortality rate (target <5% for finishers)
- Carcass lean percentage (target 5560% for market pigs)
