Researchers Examining Weight Gain, Loss in Varying Breeds

New study results suggest that some horse and pony breeds tend to hold on to weight better than others.
Please login

No account yet? Register


Got a fat pony that won’t lose weight? Give him some slack—it might not be entirely his fault. According to new study results, some horse and pony breeds just tend to hold on to their weight better than others, despite diets and exercise. But don’t give up on your weight loss regimen, the researchers say, as a fat horse is still at increased risk for serious disease. These scientists are helping lead the way toward a better understanding of how to manage weight in various breeds.

“Ponies and certain horse breeds (such as some Andalusians, Morgans, and Warmbloods) are known for their tendency to put on body fat quite readily (compared to Thoroughbreds and Standardbreds),” said Simon Bailey, BVMS, PhD, FHEA, Dipl. ECVPT, MRCVS, associate professor in preclinical veterinary sciences at the Faculty of Veterinary Science at the University of Melbourne, in Australia.

Bailey and his fellow researchers allowed ponies, Standardbreds, and Andalusian crosses to gain weight before putting them on controlled diets and exercise programs to help them lose weight. They found that the Standardbreds lost weight quickly just by switching to a hay-only diet, but many of the ponies and Andalusian crosses retained their weight, despite a restricted diet and daily light exercise.

The team is also evaluating how and where fat is deposited on the horses’ bodies as they gain weight, and how various hormones are affected and potentially play a role in both weight gain and loss in the different breeds

Create a free account with to view this content. is home to thousands of free articles about horse health care. In order to access some of our exclusive free content, you must be signed into

Start your free account today!

Already have an account?
and continue reading.


Written by:

Passionate about horses and science from the time she was riding her first Shetland Pony in Texas, Christa Lesté-Lasserre writes about scientific research that contributes to a better understanding of all equids. After undergrad studies in science, journalism, and literature, she received a master’s degree in creative writing. Now based in France, she aims to present the most fascinating aspect of equine science: the story it creates. Follow Lesté-Lasserre on Twitter @christalestelas.

Related Articles

Stay on top of the most recent Horse Health news with

FREE weekly newsletters from

Sponsored Content

Weekly Poll

sponsored by:

How do you prevent gastric ulcers in horses? Please check all that apply.
148 votes · 347 answers

Readers’ Most Popular

Sign In

Don’t have an account? Register for a FREE account here.

Need to update your account?

You need to be logged in to fill out this form

Create a free account with!