The majority of these invading bacteria are killed by macrophages, and some will also be presented to B cells. The B cells produce IgA, that is secreted in the lumen, binding to bacteria and activating specific bacterial destruction (2). Canine normally experience digestive difficulties that affect their health and comfort. https://deanfpxfd.livebloggs.com/43773081/how-natural-gut-balance-for-pets-can-save-you-time-stress-and-money