A Thoroughbred event horse ties up after a distance workout. A Welsh Pony suffers a crippling episode of laminitis. A young warmblood in training for dressage develops sore hocks. Different horses, different breeds, different circumstances and different problems, but in each case, heredity may be partly to blame for the trouble.
Genes, the coded instructions within body cells, control how every living creature appears and how it functions. Genes help determine whether a horse excels as an athlete or falls prey to certain diseases. Now scientists are deciphering the genetic code, and their work could lead to major breakthroughs in horse health. Researchers are investigating the role of genes in diseases ranging from moon blindness in Appaloosas to melanomas in gray horses.
Here, Molly McCue, DVM, MS, PhD, an associate…