Buyers want larger size animals to obtain the maximum meat yield, so go for thoroughbreds and riding horses, the study indicates.
The researchers looked at the animals put up for sale at seven randomly selected auction markets in Britain in August and September 2011, and the type preferred by dealers buying on behalf of abattoirs.
The auctions were in North Yorkshire, West Yorkshire, Wales (Powys), Berkshire and Cheshire and traded equines only, but of all types, breed and age.