Pig Keeping — Frequently Asked Questions

A single pig needs a minimum of 4 to 6 square metres of indoor sleeping space and at least 20 square metres of outdoor rooting and exercise area. Larger is always better — pigs are highly active and intelligent animals that develop behavioural problems (aggression, obsessive rooting) when confined in inadequate space. A pair of pigs on a small lifestyle block would ideally have access to 0.2 to 0.5 acres of rotating pasture that can be rested between pigs.

Electric fencing is the most practical and cost-effective pig containment solution for lifestyle and small farm use. A two-wire electric fence — one strand at 20 cm and one at 40 cm — will contain pigs once they have been trained to respect it. Training involves allowing the pigs to make nose contact with the energised wire in a small yard before moving to the main pasture area. Permanent pig fencing for breeding operations typically uses heavy-gauge hinge-joint or pig wire, 900 mm to 1.2 m high, with electric wire on the inside.

Pigs are omnivores and will eat an enormous range of foods, but a balanced diet is critical for healthy growth and reproduction. Commercial pig pellets provide a nutritionally complete base diet. Pasture, vegetables, fruit, and dairy by-products can supplement pellets and reduce feed costs significantly. Kitchen scraps and food waste (except meat, fish, and catering waste) are permitted in some states — check your state biosecurity regulations before feeding any swill. Fresh, clean water must always be available.

A domestic pig breed (Large White, Duroc, or cross) raised from birth on a commercial ration grows from approximately 1.5 kg at birth to 80 to 100 kg liveweight in 5 to 6 months — the standard market weight for pork production. Heritage breeds (Berkshire, Wessex Saddleback, Kunekune) grow more slowly and may take 8 to 12 months to reach equivalent weights, but often produce superior flavour and fat quality.

Yes — pigs are highly social animals and should be kept in groups of at least two. A single pig kept alone shows clear signs of distress: constant vocalisation, pacing, and increased aggression toward people. Pairs or small groups are calmer, healthier, and easier to manage. If keeping a boar and sow together, be aware that sows can be mated from 5 to 6 months of age — separate them if you are not ready for piglets.

Pigs have one of the most predictable gestation periods of any livestock species: 114 days, or exactly 3 months, 3 weeks, and 3 days. This consistency makes farrowing date prediction very precise. A sow served on a specific date will farrow 114 days later in the vast majority of cases, with a natural range of 110 to 118 days.

Pig identification requirements vary by state, but most Australian states and territories require pigs to carry a property identification code (PIC) and be tagged or tattooed with a Property Identification Number before being moved off their property of birth. In most states, pigs must be identified before movement and be accompanied by a National Vendor Declaration (NVD). Contact your state Department of Primary Industries for current identification and movement requirements before purchasing or moving pigs.

The earliest and most reliable sign of illness in a pig is going off feed — a pig that refuses a meal it would normally eat eagerly is telling you something is wrong. Other key warning signs include: persistent coughing or sneezing, rapid breathing or laboured respiration, diarrhoea (particularly in piglets), lameness or reluctance to rise, pale or jaundiced skin, and a rectal temperature above 40°C (normal is 38.5 to 39.5°C). Any of these signs warrant close observation and veterinary consultation if they persist.

The core Australian pig vaccination program includes: Erysipelas (caused by Erysipelothrix rhusiopathiae — causes diamond skin disease and arthritis), Parvovirus (reproductive failure in sows), and Leptospirosis (zoonotic risk — transmissible to humans). Clostridial vaccination (particularly for sows before farrowing, to protect piglets through colostrum) is also widely used. Consult your pig vet for a program appropriate to your location and management system.

Pig keeping is subject to local council zoning regulations, which vary significantly between councils. Many residential zones prohibit pigs entirely; some rural-residential zones permit small numbers with conditions. Check your council's planning scheme before acquiring any pigs — operating illegal pigs on residential property can result in fines and forced removal of the animals. Many people in suburban areas keep Guinea pigs (which are not true pigs and are not regulated as livestock) or miniature pig breeds under specific council approvals.