The number of stallions and mares bred in 2001 both decreased, and Thunder Gulch became the first Thoroughbred stallion in North America to cover over 200 mares in one northern hemisphere season.

The high rate of failed horse pregnancies may have a simple explanation: pragmatism. Mares may simply abort because nearby stallions other than the sire could be expected to kill the foal anyway ...

A rift has developed in Thoroughbred breeding industry that has some of the richest horse farms in Kentucky on different sides of the fence. On one side: Breeders who say Thoroughbred genetic ...

Japan's Shadai Stallion Station has released its figures of mares bred for the 2025 breeding season, led by global superstar Equinox and U.S. Grade 1 winner Nadal, each with 206. Equinox, a 5-year-old ...