Foaling Watch Update: Surprise Shows Waxing, But Still No Foal

Despite milk calcium levels spiking above 300 ppm and her pH dropping a couple of days ago, Surprise has not foaled yet. However, this morning, she finally showed waxing on her teats—a sign that we may be getting close. (Photo included.)

What Is Waxing, and Why Does It Matter?

Waxing occurs when drops of colostrum (first milk) begin forming on the teats as the udder prepares for foaling. This happens due to increased pressure inside the mammary glands as milk production ramps up.

🔹 When does waxing happen?
Most mares wax 12 to 48 hours before foaling, but some may wax for several days before labor begins. Others may never wax at all and foal unexpectedly.

🔹 Does waxing guarantee foaling is imminent?
Not always. Waxing is a strong indicator that foaling is getting close, but it’s not a precise countdown. Since mares foal on their own timeline, it’s just one of several signs we monitor.

Why Haven’t We Seen a Foal Yet?

Based on Surprise’s milk test results, she should have foaled by last night, but mares don’t always follow the expected patterns. While her calcium levels and pH changes strongly suggested labor was imminent, mares can hold off foaling until their body is truly ready.

That said, we are staying in close contact with our veterinarian and monitoring her carefully. Right now, we are not concerned because:
✔️ Surprise’s past three foals had an average gestation of 337 days (she’s currently at Day 336).
✔️ The average Thoroughbred gestation is 342 days, so she is still within a normal range.
✔️ Her behavior, appetite, and overall condition remain normal—showing no signs of distress.

What’s Next?

With her waxing, previous milk test results, and overall progression, foaling could happen at any time. We’ll continue closely monitoring her overnight and will keep everyone updated.

Keep watching the live cameras—tonight might be the night! 🐴✨