Coprophagia

Coprophagia is the consumption of feces, from the Greek κόπρος copros ("feces") and φαγεῖν phagein ("to eat"). Many animal species practice coprophagia as a matter of course; other species do not normally consume feces but may do so under unusual conditions. Only in rare cases is it practised by humans, usually as a manifestation of psychiatric illness[1] or being used in some sexual paraphilic practices.

Contents

Coprophagia in animals

Two Common Blue butterflies feed on a small lump of feces lying on a rock.

Coprophagous insects consume and redigest the feces of large animals; these feces contain substantial amounts of semi-digested food. (Herbivore digestive systems are especially inefficient.) The most famous feces-eating insect is the dung-beetle and the most ubiquitous is the fly.

Capybara, rabbits, hamsters and other related species do not have a complex ruminant digestive system. Instead they extract more nutrition from grass by giving their food a second pass through the gut. Soft fecal pellets of partially digested food are excreted and generally consumed immediately. They also produce normal droppings, which are not eaten.

Young elephants, pandas, koalas, and hippos eat the feces of their mother to obtain the bacteria required to properly digest vegetation found on the savanna and in the jungle. When they are born, their intestines do not contain these bacteria (they are completely sterile). Without them, they would be unable to get any nutritional value from plants.

Gorillas eat their own feces and the feces of other gorillas.

Hamsters eat their own droppings, which are thought to be a source of vitamins B and K, produced by bacteria in the gut. Apes have been observed eating horse feces for the salt content. Monkeys have been observed eating elephant feces. Coprophagia also has been observed in the naked mole rat.

Coprophagia in dogs

Coprophagia is a behavior often observed in dogs. Hofmeister, Cumming, and Dhein (2001) wrote that this behavior in dogs has not been well-researched, and they are currently preparing a study. In a preliminary paper, they write that there are various hypotheses for this behavior in canines, although none have been proven:

Some veterinarians recommend adding meat tenderizer to dog food, as this makes the feces taste excessively bad to dogs. Several companies produce food additives that can also be added to the animal's food to make feces taste bad. Often, these food additives will contain Capsicum Oleoresin which gives off a repugnant odor making the fecal matter undesirable to the dog.

Coprophagia in humans

Sexual aspects

Coprophagia is extremely uncommon in humans. It is generally thought to be the result of the paraphilia known as coprophilia. Similar risk of classification can apply to related sexual behaviors, such as analingus or inserting an object into the mouth that recently has been in the anus (see ass to mouth). Coprophagia is also sometimes depicted in pornography, usually under the terms "scat", "shitplay", "buntus cainte" or even "kaviar".

Medical aspects

From the medical literature, coprophagia has been observed in a small number of patients with dementia and/or schizophrenia[2] and depression.[3]

Consuming other people's feces carries the risk of contracting diseases spread through fecal matter, such as Hepatitis A, Hepatitis E, pneumonia, and influenza. Coprophagia also carries a risk of contracting intestinal parasites. Vaccinations are generally recommended for those who engage in this practice.

Lewin (2001) reports that "... consumption of fresh, warm camel feces has been recommended by Bedouins as a remedy for bacterial dysentery; its efficacy (probably attributable to the antibiotic subtilisin from Bacillus subtilis) was confirmed by German soldiers in Africa during World War II."

Cultural aspects

Notes

  1. ↑ http://ageing.oxfordjournals.org/cgi/reprint/28/2/233.pdf
  2. ↑ Effective treatment of coprophagia in a patient with schizophrenia with the novel atypical antipsychotic drug perospirone
  3. ↑ Escalation of a fetish: coprophagia in a nonpsychotic adult of normal intelligence

References

External links