Horse breeders are individuals or businesses that specialize in the mating and raising of horses. They carefully select parent horses based on desirable traits such as speed, temperament, and conformation to produce offspring that meet specific goals, whether for racing, work, or companionship. Breeders often keep detailed records of lineage and health to ensure the quality of their horses. They may also participate in competitions and shows to showcase their horses and attract potential buyers. The process requires knowledge of genetics, animal care, and market trends in the equine industry.