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.
It is believed that, although all of these factors--lifestyle, acid and pepsin, and H. pylori --play a role in ulcer development, H. pylori is considered to be the primary cause in most cases. Factors suspected of playing a role in the development of stomach or duodenal ulcers include: Helicobacter pylori.Research shows that most ulcers develop as a result of infection with a bacterium called Helicobacter pylori (H. pylori). The bacterium produces substances that weaken the stomach's protective mucus and make it more susceptible to the damaging effects of acid and pepsin.n ulcer is an open sore, or lesion, usually found on the skin or mucous membrane areas of the body. Click to Enlarge. An ulcer in the lining of the stomach or duodenum, where hydrochloric acid and pepsin are present, is referred to as a peptic ulcer.