Join Date: Feb 2012
Location: Alberta, Canada
How Accurate is Ultra Sound Dating?
My Bo has a mare that was ultra sounded June 21 and told the fetus was 20 days old, making her due date in the first half of may. She was bred on the two previous cycles and apparently didn't catch on either(ultra sound showed her open). Well, she is progressing faster than expected and looks like she could go in the next three weeks. Which would be right on track if she caught on the second breeding, But quite early if the US was correct.
Just wondering if anyone knows how accurate early fetal dating via US is?