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Journal of Thermal Biology
Yahav, S., Department of Physiology, Medical School, University of Witwatersrand, 7 York Road, Parktown 2193 Johannesburg, South Africa
Buffenstein, R., Department of Physiology, Medical School, University of Witwatersrand, 7 York Road, Parktown 2193 Johannesburg, South Africa
1. 1.|The effect of temperature on caecal function was examined in the naked mole-rat Heterocephalus glaber, a poikilothermic mammal, which consumes a high proportion of fibre in its natural diet. 2. 2.|The temperature of optimal caecal function was determined from fermentation data measure at three specifically chosen temperatures (28, 33 and 40°C). 3. 3.|There was no significant difference between gas production at 33 and 40°C, however, gas production was significantly lower at 28°C. 4. 4.|The relative proportions of the gases produced were markedly different at 33 and 40°C (P ≤ 0.01). More methane and hydrogen were produced at 33°C than at 40°C. 5. 5.|These data suggest that microbial organisms within the caecum were active and functioning more effectively at 33°C (the preferred body temperature of the naked mole-rat) than at the other two temperatures. © 1991.
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The effect of temperature on caecal fermentation processes in a poikilothermic mammal, Heterocephalus glaber
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Yahav, S., Department of Physiology, Medical School, University of Witwatersrand, 7 York Road, Parktown 2193 Johannesburg, South Africa
Buffenstein, R., Department of Physiology, Medical School, University of Witwatersrand, 7 York Road, Parktown 2193 Johannesburg, South Africa
The effect of temperature on caecal fermentation processes in a poikilothermic mammal, Heterocephalus glaber
1. 1.|The effect of temperature on caecal function was examined in the naked mole-rat Heterocephalus glaber, a poikilothermic mammal, which consumes a high proportion of fibre in its natural diet. 2. 2.|The temperature of optimal caecal function was determined from fermentation data measure at three specifically chosen temperatures (28, 33 and 40°C). 3. 3.|There was no significant difference between gas production at 33 and 40°C, however, gas production was significantly lower at 28°C. 4. 4.|The relative proportions of the gases produced were markedly different at 33 and 40°C (P ≤ 0.01). More methane and hydrogen were produced at 33°C than at 40°C. 5. 5.|These data suggest that microbial organisms within the caecum were active and functioning more effectively at 33°C (the preferred body temperature of the naked mole-rat) than at the other two temperatures. © 1991.
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