Cases of equine grass sickness (EGS) peak between April and July, and researchers are looking for horse owners to help them investigate the potentially fatal disease.

Scientists at the University of London are looking for owners whose horses have suffered from EGS or who live in an area where there have been outbreaks in the past.

The research project — run by the university’s centre for pharmacognosy and phytotherapy — is looking at the potential causes of equine grass sickness.

Little is known about the disease, though clear links have been made to some elements of the horse’s diet — either in the food or water.

Signs include intestinal problems and can be fatal.

EGS — also known as dysautonomia — most commonly affects horses aged between two and seven.

For more information or to take part, email: equinegrass@googlemail.com or tel: 020 77535846