Guinea pig モルモット一家
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Guinea pig モルモット一家
めちゃめちゃかわいいです
小型で丸い耳を持ち、尾を持たない。前足4本、後ろ足3本の指を持つ。雌雄とも乳房は1対である。体長は約20-40cm、体重は0.5-1.5kg。染色体数：2n＝64本。歯式は切歯2（1／1 0／0 1／1 3／3）の20本、歯根は開放式で一生延びる。換毛は年2回。
盲腸の発達が顕著で、腸の半分近くを占め、繊維質は盲腸内細菌、プロトゾアによって消化を行う。Lグロノラクトンオキシターゼを持っておらず、ビタミンCを外部からの補給に頼っている。
寿命はおよそ5-8年と言われている。
The guinea pig (Cavia porcellus), also called the cavy, is a species of rodent belonging to the family Caviidae and the genus Cavia. Despite their common name, these animals are not in the pig family, nor are they from Guinea. They originated in the Andes, and earlier studies based on biochemistry and hybridization suggested they are domesticated descendants of a closely related species of cavy such as Cavia aperea, C. fulgida, or C. tschudii and, therefore, do not exist naturally in the wild.[1][2] Recent studies applying molecular markers,[3][4] in addition to studying the skull and skeletal morphology of current and mummified animals,[5] revealed that the ancestor is most likely Cavia tschudii.
The guinea pig plays an important role in the folk culture of many Indigenous South American groups, especially as a food source, but also in folk medicine and in community religious ceremonies.[6] Since the 1960s, efforts have been made to increase consumption of the animal outside South America.[7]
In Western societies, the guinea pig has enjoyed widespread popularity as a household pet since its introduction by European traders in the 16th century. Their docile nature, their responsiveness to handling and feeding, and the relative ease of caring for them, continue to make the guinea pig a popular pet. Organizations devoted to competitive breeding of guinea pigs have been formed worldwide, and many specialized breeds of guinea pig, with varying coat colors and compositions, are cultivated by breeders.
Biological experimentation on guinea pigs has been carried out since the 17th century. The animals were frequently used as a model organism in the 19th and 20th centuries, resulting in the epithet "guinea pig" for a test subject, but have since been largely replaced by other rodents such as mice and rats. They are still used in research, primarily as models for human medical conditions such as juvenile diabetes, tuberculosis, scurvy, and pregnancy complications.