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Monogastrics cannot digest the fiber molecule cellulose as efficiently as ruminants, though the ability to digest cellulose varies amongst species. [2] A monogastric digestive system works as soon as the food enters the mouth. Saliva moistens the food and begins the digestive process.
The expensive tissue hypothesis (ETH) relates brain and gut size in evolution (specifically in human evolution).It suggests that in order for an organism to evolve a large brain without a significant increase in basal metabolic rate (as seen in humans), the organism must use less energy on other expensive tissues; the paper introducing the ETH suggests that in humans, this was achieved by ...
Venison originally meant the meat of a game animal but now refers primarily to the meat of deer (or antelope in South Africa). [1] Venison can be used to refer to any part of the animal, so long as it is edible, including the internal organs. Venison, much like beef or pork, is categorized into specific cuts, including roast, sirloin, and ribs.
Humans can get the protein and essential fatty acids we need from other sources, including wild-caught cold-water fish, omega-3–rich free-range eggs, and tofu, beans, and nuts.
TSEs in non-human mammals include scrapie in sheep, bovine spongiform encephalopathy (BSE) in cattle – popularly known as "mad cow disease" – and chronic wasting disease (CWD) in deer and elk. The variant form of Creutzfeldt–Jakob disease in humans is caused by exposure to bovine spongiform encephalopathy prions. [4] [5] [6]
Upper and lower human gastrointestinal tract. The human gastrointestinal tract is around 9 metres (30 feet) long. Food digestion physiology varies between individuals and upon other factors such as the characteristics of the food and size of the meal, and the process of digestion normally takes between 24 and 72 hours.
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But in order to get nutrients out of hard to digest fiber, some smaller hindgut fermenters, like lagomorphs (rabbits, hares, pikas), ferment fiber in the cecum (at the small and large intestine junction) and then expel the contents as cecotropes, which are reingested . The cecotropes are then absorbed in the small intestine to utilize the ...