When Should A Pregnant Horse Have An Ultrasound?

When Should A Pregnant Horse Have An Ultrasound? Your veterinarian can perform transrectal ultrasound as soon as Day 26 of gestation to visualize a heartbeat and confirm fetal viability. Before ultrasound was so widely available, many people relied on the fact that most mares will come back into heat 17 to 20 days after breeding

Do Mares Foal During The Day?

Do Mares Foal During The Day? As the unborn foal matures during the last month of pregnancy, a distended udder is often the first sign of the approaching birth. Typically, your mare’s udder will fill at night and shrink during the day. When the udder remains full, foaling may be days or only hours away.