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.
What is peptic ulcer disease? Peptic ulcer disease is a term sometimes used for stomach ulcers. Ulcers from peptic ulcer disease can also affect the small intestine, called duodenal ulcers. What causes ulcers? Ulcers can be caused by: Infection with a type of bacteria called Helicobacter pylori (H pylori). This is responsible for about 80% of stomach ulcers and about 95% of duodenal ulcers.