At what age can a pig get pregnant

Fetal development occurs between attachment of fertilized embryos to the uterus, to the days right before parturition (birth). It is at this time, gestation, that piglets form and grow inside of the sow. Generally, the length of time a sow is pregnant, or gestating, is about 115 days, or 3 months, 3 weeks, and 3 days.

During this time, the piglets go through different phases of development, which we will separate into 5 major phases: Day 0–15, Day 13–30, Day 30–77, Day 77–90, Day 90–114. We will touch on each of these phases in this article.

Day 0-15

The first sign of heat is considered Day 0 of the estrous cycle.

How many times can a pig get pregnant in a lifetime

Ovulation occurs within the first 24–48 hours after the start of heat. Fertilized embryos will elongate and migrate to find space in the uterus. During this time, sow fighting and trauma typically have little impact on embryo survival, because the embryos have yet to form attachments to the uterine wall.

Any loss in embryos at this time is typically influenced by quality of the oocyte before ovulation, quality of the sperm, and/or disruptions in hormonal signaling befo

how long is the gestation period for swine

how long is gestation for swine