There are growing fears that equine dysautonomia, more commonly known as equine grass sickness, is becoming more common as anecdotal cases rise.
The disease is invariably fatal and affects the nervous system of horses, ponies and donkeys causing colic signs, rapid weight loss and trouble swallowing.
Vets are being urged to spread awareness of the condition as it is felt that very few horse owners know exactly what grass sickness is as it has always been relatively uncommon.