Study links track grazing to better welfare indicators in ponies

A study highlighted in the November 2024 EVJ On the Hoof podcast is adding useful nuance to a familiar equine management problem: restricting pasture access in ponies prone to obesity doesn't affect welfare equally across systems. In the study, published in Equine Veterinary Journal, researchers found that ponies managed on a track grazing system moved more, covered more distance, and displayed less overt agonistic behavior than when the same ponies were managed with strip-grazing. The work points to track systems as a potentially less welfare-compromising way to limit grass intake in outdoor-living ponies. (evj.podbean.com)

That matters because equine obesity remains a persistent welfare and clinical concern, especially in native breeds and leisure ponies. The paper notes that obesity is linked with equine metabolic syndrome and laminitis, and that standard weight-loss advice often centers on reducing forage intake and limiting grazing. But grazing and movement are core equine behaviors, so any management strategy that restricts access to pasture can also reshape time budgets, social interactions, and behavioral expression. (pure.sruc.ac.uk)

The study used a within-subject crossover design, with four groups of pasture-kept ponies experiencing each grazing system for four weeks in random order. Researchers used 24-hour electronic surveillance, weekly morphometric measurements, and activity tracking to compare outcomes. On the track system, ponies spent a greater proportion of time moving and traveled roughly 7.0 km per day, versus about 5.3 km on strip-grazing. They also showed lower rates of overt agonistic behavior. The authors said the difference may reflect how ponies perceive space and resource distribution, even when the accessible grazing area is matched between systems. (pubmed.ncbi.nlm.nih.gov)

The timing is worth clarifying. The article was received on April 30, 2024, accepted on August 9, 2024, and available in EVJ’s early-view pipeline before being assigned to the May 2025 print issue. The related podcast episode was published on December 2, 2024, and names the study authors as Roxane Kirton, Imogen Sandford, Eleanor Raffan, Sarah Hallsworth, Oliver H. P. Burman, and Ruth Morgan. Affiliations include Redwings Horse Sanctuary, the University of Lincoln, the University of Cambridge, Scotland’s Rural College, and the University of Edinburgh. (pure.sruc.ac.uk)

Outside commentary broadly lines up with the study's direction, though much of it remains interpretive rather than formal peer review. Kentucky Equine Research, summarizing the findings, said the work highlights the potential for track systems to support weight management by limiting grass access while encouraging more movement. Separate background literature has also noted that horse carers often see welfare tradeoffs with common restriction methods, and that track systems are attracting interest even though best-practice guidance and long-term efficacy data remain limited. (ker.com)

Why it matters: For veterinary professionals, this is a reminder that obesity management plans should be judged on more than body weight alone. In ponies at risk for laminitis or insulin dysregulation, calorie control is essential, but the delivery method can influence locomotion, social tension, and day-to-day welfare. The present study was short and didn't establish a significant body-weight or body-condition advantage over four weeks, so it shouldn't be read as definitive proof that track systems are superior for weight loss. Still, it strengthens the case for discussing pasture design, group dynamics, and behavior when advising pet parents and yards on restricted grazing strategies. (pubmed.ncbi.nlm.nih.gov)

It also lands alongside a growing body of work asking whether traditional restriction methods may unintentionally undermine welfare goals. Prior literature cited by the authors and related research suggests that some restricted grazing approaches can interfere with social behavior and may even encourage compensatory intake patterns. More recent observational work on track-managed horses has similarly argued that the field needs longer-term, real-world evidence on weight, welfare, and management practicality. (pure.sruc.ac.uk)

What to watch: The next step is longer-duration research that tracks not just movement and behavior, but also body condition, metabolic markers, hoof health, and implementation challenges across different herd setups and pasture types. If those data hold up, track-system design could become a more evidence-based part of preventive guidance for ponies vulnerable to obesity and laminitis. (pubmed.ncbi.nlm.nih.gov)