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Cud is a portion of food that returns from a ruminant's stomach to the mouth to be chewed for the second time. More precisely, it is a bolus of semi-degraded food regurgitated from the reticulorumen of a ruminant. Cud is produced during the physical digestive process of rumination. [1]
A water buffalo chewing cud. Chewing is primarily an unconscious (semi-autonomic) act, but can be mediated by higher conscious input.The motor program for mastication is a hypothesized central nervous system function by which the complex patterns governing mastication are created and controlled.
Food taboos can help utilizing a resource, [citation needed] but when applied to only a subsection of the community, a food taboo can also lead to the monopolization of a food item by those exempted. A food taboo acknowledged by a particular group or tribe as part of their ways, aids in the cohesion of the group, helps that particular group to ...
Advocates have been asking the FDA for nearly two decades to require front-of-pack labels, which they say help people make healthier choices and prod food manufacturers to reformulate their ...
The chewing of cud by animals such as cows, goats, and giraffes is considered normal behavior. These animals are known as ruminants. [8] Such behavior, though termed rumination, is not related to human rumination syndrome, but is ordinary. Involuntary rumination, similar to what is seen in humans, has been described in gorillas and other ...
The food is mixed with saliva and separates into layers of solid and liquid material. [23] Solids clump together to form the cud or bolus. The cud is then regurgitated and chewed to completely mix it with saliva and to break down the particle size. Smaller particle size allows for increased nutrient absorption.
The hare, for chewing the cud without having cloven hooves. [2] [5] The pig, for having cloven hooves without chewing the cud. [6] [7] While camels possess a single stomach, and are thus not true ruminants, they do chew cud; additionally, camels do not have hooves at all, but rather separate toes on individual toe pads, with hoof-like toenails.
Ruminants regurgitate their food as a normal part of digestion. During their idle time, they chew the regurgitated food and swallow it again, which increases digestibility by reducing particle size. [citation needed] Honey is produced by a process of regurgitation by honey bees, which is stored in the beehive as a primary food source.