Delia, the veterinarian said, most likely had a marble in her uterus and possibly a second, which had shattered.

foal, and therefore preventing her from

coming into heat.

As strange as it may sound, this

can work---but only sometimes and

only for short periods. Studies have

shown that marbles suppress estrus

either confirm the problem or rectify

it, Delia’s veterinarian referred her to

New Bolton Center, where Turner took

over the case.

“Our first step was to perform an

ultrasound to verify what the first