“…In this literature review, we examine reports of breed associated diversity in GI anatomy 39 and morphology, gastric emptying time (GET), oro-cecal transit time (OCTT), small intestinal transit time 40 (SITT), large intestinal transit time (LITT), intestinal permeability, sodium/potassium fecal concentrations, 41 intestinal flora, and fecal moisture content. Physiological processes 65 -Gastric emptying time (GET) 66 -Oro-cecal transit time (OCTT) 67 -Small intestinal transit time (SITT) 68 -Large intestine transit time (LITT) 69 70 Absorption factors 71 -Fecal moisture content 72 -Electrolyte absorption 73 -Intestinal flora 74 -Intestinal permeability 75 76 77 The lack of published information on the relationship between 78 breed and basal fluid volumes, mucous layer thickness, bile salt 79 composition, and regional pH necessitated its exclusion from this 80 review. 81 The studies described in this review utilized a variety of testing 82 methods.…”