Date Published: 25 July 2013

Cavalry horses help research into lameness in horses

Veterinary scientists at Nottingham University (England) have studied lameness among the ceremonial cavalry horses of the British Army in research that might eventually benefit horses and ponies kept and ridden for pleasure.

Third year student Jessica Putnam of Nottingham University's School of Veterinary Medicine and Science spent 13 months documenting incidents of lameness amongst the 294 horses of the British Army's Household Cavalry Mounted Regiment (HCMR). Her research was carried out in collaboration with Captain Laura Holmes, the regimental veterinary officer, and has recently been published in the Equine Veterinary Journal.

Ms Putnam's research supervisor Dr Sarah Freeman, an expert in veterinary surgery, said:

" These ceremonial horses reveal a lot about what horses in yards around the world have to contend with. The main message from this study is that horses in work often have minor and short-lived problems. Current literature is focused on the more major and poor prognosis conditions, which is understandable because they have the big impact, but we should recognise that they aren't necessarily the most common, and we should not ignore the common minor conditions."

The horses of the Household Cavalry Mounted Regiment are often seen on the streets of London and have the unique privilege of carrying out ceremonial duties on State and Royal occasions. In the last two years they have participated in celebrations for the Royal Wedding, the Queen's Birthday and the Queen's Jubilee.

Ms Putnam, who has now graduated and is working in equine general practice at Aldington Equine Vets in Lancashire, gathered information through questionnaires completed by Captain Holmes and the farriers and riders who help care for the cavalry horses. As well as the type of lameness, information was collected on the length of time the horse was out of work and the eventual outcome.

Dr Freeman said:

" Lameness is a common problem in the horse but in many cases no one thinks it is significant enough to report. As a result, information on the incidence of lameness in horses in the UK is restricted to studies of performance horses, racehorses or referral hospital populations. Although the horses of the HCMR have a highly specialised ceremonial role their activities parallel to a surprising degree those of pleasure horses. Their main workload is walking round the roads and parks so they more closely represent the large number of pleasure horses who will be hacking round the roads steadily and regularly and not doing anything fast or exciting. They represent a very different population to most of the current published research ? which is predominantly racehorses and competition horses ? but to date we have no information on this part of the population."

This research revealed that the incidence of lameness among the group of horses studied was low, with a monthly rate of slightly over 2%. One surprising revelation was that the most common cause of lameness was cellulitis, a bacterial infection of the connective tissue of the skin.

Dr Freeman said:

"We thought arthritis would easily be the most common cause of lameness but early on in the study one of the staff told Jessica that wounds and cellulitis were more of a problem as they were unexpected and put the horses off work. There were a total of 16 cases of cellulitis reported in the study, most attributed to small cuts and each putting the horse out of work for an average of 17 and a half days. Skin wounds were the second most common cause of lameness, accounting for 14 incidents and leading to an average of just over 25 missed working days."

After talking to horse owners on the yard at the university's school of veterinary science, where students keep their own horses, the research team found that a similar percentage of horses had to be taken out of work due to minor nicks or swellings. Foot and shoeing problems were the third most common cause of lameness in the study group, followed by tendon/ligament injury, arthritis, foot abscesses and muscle bruising.

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