OTOFUKE, Hokkaido--A herd of mares in foal galloped across a snow-covered track here on Jan. 16 for wintertime exercise to improve their health and prepare for a safer, easier delivery.

As we approach the opening of the 2025 breeding season, the TDN staff is once again sitting down with leading breeders to find out what stallions they have chosen for their mares, and why. In recent ...