Swine Gestation Calculator

Swine Gestation Milestones

Here's a list of key milestones in swine pregnancy, broken down by stages:

• Health Monitoring: Regular health check-ups throughout pregnancy.
• Diet and Nutrition Adjustment: Increased and adjusted feeding as the pregnancy progresses.
• Farrowing Crate Preparation: Setting up a comfortable birthing area before the due date.

How Do You Calculate a Swine's Due Date?

Calculating a swine's due date primarily revolves around the date of mating. Here's a simple step-by-step process to calculate a swine's due date:

1. Determine the Date of Mating: Record the date(s) when the sow was bred. If there were multiple matings, note all the dates.
2. Understand the Average Gestation Period: The average gestation period for a swine is about 114 days (or approximately 3 months, 3 weeks, and 3 days), but it can range between 111 and 117 days.
3. Use the First Mating Date as a Starting Point: If you know only one mating date, use this date. If there are multiple mating dates, you can either use the first date or an average of the dates for a rough estimate. Using the first mating date is commonly advised for simplicity.
4. Add 114 Days to the Mating Date: Count 114 days forward from the mating date to estimate the due date.
5. Consider the Range: Keep in mind the normal variation in gestation length (111 to 117 days). This means the sow could deliver a few days before or after the calculated due date.
6. Monitor for Signs of Approaching Farrowing: As the estimated due date approaches, look for signs of labor like nesting behavior, restlessness, or loss of appetite.

Pregnancy Durations For Swine

The gestation period for swine is generally consistent. The average gestation period for swine is about 114 days, but it can range from 111 to 117 days.

Swine Pregnancy Reference Table

Below is a reference table showing the due date for all days of the year.