The dog amongst all the animals has proved to be the mans best friend and faithful companion because of its fidelity, loyalty, obedience and pleasant disposition. Dogs appeared on the earth about 20 million years ago (Sharma et al., 1993). The dogs stomach is a sac-like structure designed to store large volumes of food and begin the digestive process. Once eaten, most food leaves the stomach within twelve hours after entering. The esophagus carries food to the stomach, where it enters via a valve-like structure called the cardiac sphincter. On the interior surface of the stomach is a series...