In todayâs world, weaning is not done to aid the mother. Rather, it is done because puppies generally make their way to their new home at about seven weeks of age, and since their mother is not going with them, the pups need to have their gastrointestinal tracts accustomed to eating commercially prepared foods.
Causes of stomach ulcers. Stomach ulcers are usually caused by Helicobacter pylori (H. pylori) bacteria or non-steroidal anti-inflammatory drugs (NSAIDs). These can break down the stomach's defence against the acid it produces to digest food, allowing the stomach lining to become damaged and an ulcer to form.
Additional factors that increase the risk for peptic ulcer disease include the following: 1  Age (more common in people over the age of 50). 2  Alcohol use. 3  Family history of peptic ulcers. 4  Smoking.