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.
The most common cause for peptic ulcer disease is Helicobacter pylori (pronounced HEE-li-co BACK-ter pie-LOR-ee or HELL-uh-koh-BAK-tur py-LOH-ree) infection, also called H. pylori infection. Helicobacter pylori are spiral-shaped bacteria that are found in contaminated food and water.elicobacter pylori infection can cause peptic ulcer disease, gastritis (inflammation of the stomach lining), and other complications (e.g., stomach [gastric] cancer).