The combination of trailer transport and exercise increases gastrointestinal permeability and markers of systemic inflammation in horses.”
Nancy S. Loving, DVM, reviews a study published this month in Equine Veterinary Journal
Source: EquiManagement, February 8, 2023. Link. While there are other possible explanations for the increase in gastrointestinal permeability, results from the study horses undergoing transport and exercise demonstrated that there was a marked increase in intestinal permeability. This was especially true compared to the control sedentary horses.