This book includes a review of the pathophysiology of acute colitis in the adult horse and discussion of the more common etiologies for this condition and treatment options available to the equine clinician. The aim of the clinical study performed and documented was to evaluate the use of a hyperimmunized plasma containing high concentration of antibodies against Clostridium difficile, Clostridium perfringens and Salmonella sp in a referral population of equine colitis cases.Forty two horses were enrolled and 38 horses completed the study. At study admission clinical and clinicopathological...