Caecal function provides the energy of fermentation without liberating heat in the poikilothermic mammal, Heterocephalus glaber

Shlomo Yahav, Rochelle Buffenstein

Research output: Contribution to journalArticle

8 Scopus citations

Abstract

This paper presents the first report of a mammalian internal organ with a lower temperature than its abdominal surrounds. Heterocephalus glaber, the naked mole-rat, is a poikilothermic mammal that leads a strictly subterranean existence and consumes a high proportion of fibre in its diet. The fermentation chamber in these animals appears to absorb rather than generate heat and the temperature in it was consistently 1.2±0.5°C (n=17) lower than rectal temperature. A caecum with a lower temperature than its abdominal surrounds provides an internal heat sink which could be advantageous for metabolic heat dissipation in the plugged humid burrows in which the naked mole-rat permanently resides.

Original languageEnglish (US)
Pages (from-to)216-218
Number of pages3
JournalJournal of Comparative Physiology B
Volume162
Issue number3
DOIs
StatePublished - Apr 1 1992

Keywords

  • Caecal temperature
  • Caecum
  • Fermentation
  • Hind-gut
  • Mole-rat, Heterocephalus glaber

ASJC Scopus subject areas

  • Ecology, Evolution, Behavior and Systematics
  • Biochemistry
  • Physiology
  • Animal Science and Zoology
  • Endocrinology

Fingerprint Dive into the research topics of 'Caecal function provides the energy of fermentation without liberating heat in the poikilothermic mammal, Heterocephalus glaber'. Together they form a unique fingerprint.

  • Cite this