The Effect of Heat Stress and Water Deprivation On The Environmental Physiology Of The Bushbuck, the Reedbuck and the Uganda Kob

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Date
1970
Authors
Schoen, A.
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Abstract
Earlier studies on the water balance of the East African goat have show:! that this animal is able to resist severe heat stress. This resistance is due mainly to its ability to save water via avenues of urinary and faecal water losses, to the establishment of a fast but shallow panting rate, to a physiologically useful heat storage capacity and to the maintenance of a high level of feed intake (Schoen, 1968). The North African camel sweats 'profusely under heat stress and has an efficient heat storage capacity, but does not increase its ventilation rate to any great extent, (Schmdt-Nidsen, 1964). A 1rupicalantelope, the eland also has a useful heat storage capacity with a diurnal range of about8°C when exposed to heat stress for part of the day, (Taylor and Lyman, 1967). Mammals are generally able to reduce all avenues of water loss and substantially concern take their urine, when dehydrated. Earlier studies on the water balance of the East African goat have show:! that this animal is able to resist severe heat stress. This resistance is due mainly to its ability to save water via avenues of urinary and faecal water losses, to the establishment of a fast but shallow panting rate, to a physiologically useful heat storage capacity and to the maintenance of a high level of feed intake,(Schoen, 1968). The North African camel sweats 'profusely under heat stress and has an efficient heat storage capacity, but does not increase its ventilation rate to any great extent, (Schmidt-Nidsen, 1964). A 1rupicalantelope, the eland also has a useful heat storage capacity with a diurnal range of about8°C when exposed to heat stress for part of the day, (Taylor and Lyman, 1967). Mammals are generally able to reduce all avenues of water loss and substantially concern that their urine, when dehydrated.
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East African Agricultural And Forestry Journal, 37 (1), p. 1-7