Enter your sow's Breeding Date and Gestation Period (Days) into the Swine Gestation Calculator to find her Expected Farrowing Date, along with Days Until Farrowing, the Premature Farrowing Range Start, and the Normal Farrowing Range End — so you know exactly when to have the farrowing crate ready.
Expected Farrowing Date
--
Days Until Farrowing
--
Premature Farrowing Range Start
--
Normal Farrowing Range End
--
A pig's gestation period is typically 112-120 days, with the average being 114 days. Both domestic standard breeds and miniature pig breeds have the same gestation period.
Premature farrowing occurs when piglets are born between 109 and 112 days of gestation. If a pig farrows before the 109th day, it's considered an abortion.
A pig can have anywhere from 6 to 12 piglets in a litter, with the average being around 8-10 piglets. The number can vary based on the breed, age, and health of the sow.
Pigs can typically be bred when they reach 8-12 months of age and weigh at least 250-300 pounds. It's important to ensure the pig is physically mature before breeding.
114 days equals approximately 3 months and 3 weeks. This makes pig pregnancy roughly 3.7 months, which is much shorter than many other mammals.
Mini pigs have the same gestation period as standard pigs - 112 to 120 days, with an average of 114 days. The breed size doesn't affect the pregnancy duration.
You should prepare for farrowing about a week before the expected date. Set up a clean, warm farrowing area and have supplies ready, as pigs can farrow anywhere within the 112-120 day range.
Signs include restlessness, nesting behavior, loss of appetite, swollen vulva, and milk production. The pig may also isolate herself and show signs of discomfort as labor approaches.