10,000 Thoroughbreds sent to slaughter annually due to overproduction

The U.S. Thoroughbred industry breeds approximately 20,000 foals per year, but only 60-65% ever make it to the track, and racing careers average just 2-3 years. An estimated 10,000 Thoroughbreds are sent to slaughter annually — roughly half of each year's foal crop eventually ends up at kill buyers' auctions. Aftercare organizations have rehomed about 18,500 horses total since 2012, meaning the entire decade of organized aftercare effort has saved fewer horses than two years of slaughter output. The problem persists because the Jockey Club stud book has no mechanism to limit breeding — any registered Thoroughbred can breed — and the economics incentivize overproduction: breeders profit from selling yearlings regardless of whether those horses ever race successfully, and stallion owners earn stud fees per mating with no downstream liability for the resulting foal's welfare. There is no breeder responsibility law analogous to product liability; once a horse is sold, the breeder has zero legal or financial obligation for its fate.