Clinical and Faecal Parameters of Adult Dogs with Chronic Enteropathy Fed a Hydrolised Protein Diet Fortified or Not with a Probiotic Strain

Chronic enteropathy (CE) disorders are among the most frequent clinical challenges in canine gastroenterology, often requiring a dietary management as the primary treatment. Hydrolyzed diets are widely used as a first‑line nutritional strategy, yet growing interest surrounds the potential added value of specific probiotic strains in improving clinical outcomes and supporting microbial health. This 15‑minute presentation will share new findings from a double‑blind, randomized, cross‑over study designed to explore this question. Thirteen client‑owned dogs with chronic GI signs and naïve to previous dietary therapy were enrolled. Each dog received two dietary treatments for 60 days each: a fish‑based hydrolyzed diet alone, and the same diet supplemented with Bacillus velezensis DSM 15544. The session will present the clinical outcomes observed during each feeding period, including changes in gastrointestinal symptom scores, stool quality, and overall patient response. Particular attention will be given to the temporal evolution of signs and whether the addition of B. velezensis DSM 15544 influenced clinical outcomes. In parallel, fecal microbiota composition was assessed to evaluate how each dietary treatment influenced shifts in bacterial composition. Overall, the presentation will offer an updated, evidence‑based perspective on the influence of an hydrolyzed diet, and its potential supplementation with Bacillus velezensis DSM 15544, in dogs with chronic enteropathies.