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The use of heat transfer coefficients in estimating sensible heat loss from the pig

Published online by Cambridge University Press:  02 September 2010

L. E. Mount
L. E. Mount
Affiliation:
ARC Institute of Animal Physiology, Babraham, Cambridge CB2 4AT
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Summary

Heat transfer coefficients are used to calculate convective and radiant heat losses from pigs of 4, 20 and 60 kg body weight at 20 and 30 °C environmental temperatures for different wind speeds. Comparisons with heat losses estimated from whole-animal calorimetry suggest that calculations with heat transfer coefficients can lead to useful approximate estimates of heat loss from the pig.

Type
Research Article
Information
Animal Production , Volume 25 , Issue 3 , December 1977 , pp. 271 - 279
Copyright
Copyright © British Society of Animal Science 1977

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References

REFERENCES

Bond, T. E., Kelly, C. F. and Heitman, H. 1952. Heat and moisture loss from swine. Agric. Engng, St. Joseph, Mich. 33: 148–152.Google Scholar
Brody, S. 1945. Bioenergetics and Growth, p. 457. Reinhold, New York.Google Scholar
Cairnie, A. B. and Pullar, J. D. 1959. An investigation into the efficient use of time in the calorimetric measurement of heat output. Br. J. Nutr. 13: 431–439.CrossRefGoogle ScholarPubMed
Cena, K. 1974. Radiative heat loss from animals and man. In Heat Loss from Animals and Man (ed. Monteith, J. L. and Mount, L. E.), pp. 34–58. Butterworth, London.Google Scholar
Close, W. H. and Mount, L. E. 1975. The rate of heat loss during fasting in the growing pig. Br. J. Nutr. 34: 279–290.CrossRefGoogle ScholarPubMed
Close, W. H. and Mount, L. E. 1976. Critical temperature in relation to feeding level in the growing pig. In Energy Metabolism of Farm Animals (ed. Vermorel, M.), pp. 343–350. de Bussac, Clermont-Ferrand.Google Scholar
Close, W. H., Mount, L. E. and Start, I. B. 1971. The influence of environmental temperature and plane of nutrition on heat losses from groups of growing pigs. Anim. Prod. 13: 285–294.Google Scholar
Finch, , Virginia, A. 1972. Energy exchanges with the environment of two East African antelopes, the eland and the hartebeest. In Comparative Physiology of Desert Animals (ed. Maloiy, G. M. O.), pp. 315–326. Academic Press, London.Google Scholar
Fuller, M. F. and Boyne, A. W. 1972. The effects of environmental temperature on the growth and metabolism of pigs given different amounts of food. 2. Energy metabolism. Sr.J. Nutr. 28: 373–384.CrossRefGoogle ScholarPubMed
Gray, R. and McCracken, K. J. 1974. Utilization of energy and protein by pigs adapted to different temperature levels. In Energy Metabolism of Farm Animals (ed. Menke, K. M., Lantzsch, H. J. and Reichl, J. R.). Eur. Ass. Anim. Prod. Publ. No. 14, pp. 161–164. Univ. Hohenheim.Google Scholar
Holmes, C. W. 1968. Heat losses from young pigs at three environmental temperatures, measured in a direct calorimeter. Anim. Prod. 10: 135–147.Google Scholar
Holmes, C. W. and Close, W. H. 1977. The influence of climatic variables on aspects of productivity in pigs. In Nutrition and the Climatic Environment (ed. Haresign, W., Swan, H. and Lewis, D.), pp. 51–73. Butterworth, London.Google Scholar
Holmes, C. W. and Mount, L. E. 1967. Heat loss from groups of growing pigs under various conditions of environmental temperature and air movement. Anim. Prod. 9: 435–452.Google Scholar
Monteith, J. L. 1973. Principles of Environmental Physics, p. 103. Arnold, London.Google Scholar
Mount, L. E. 1962. Evaporative heat loss in the newborn pig. J. Physiol., Lond. 164: 274–281.CrossRefGoogle Scholar
Mount, L. E. 1963. Responses to thermal environment in newborn pigs. Fedn Proc. Fedn Am. Socs exp. Biol. 22: 818–823.Google ScholarPubMed
Mount, L. E. 1964. Radiant and convective heat loss from the new-born pig. J. Physiol., Lond. 173: 96–113.CrossRefGoogle ScholarPubMed
Mount, L. E. 1968. The Climatic Physiology of the Pig. Arnold, London.Google Scholar
Mount, L. E. and Ingram, D. L. 1965. The effects of ambient temperature and air movement on localized sensible heat-loss from the pig. Res. vet. Sci. 6: 84–91.CrossRefGoogle ScholarPubMed
Stombaugh, D. P., Roller, W. L., Adams, T. and Teague, H. S. 1973. Temperature regulation in neonatal piglets during mild cold and severe heat stress. Am. J. Physiol. 225: 1192–1198.CrossRefGoogle ScholarPubMed
Verstegen, M. W. A., Close, W. H., Start, I. B. and Mount, L. E. 1973. The effects of environmental temperature and plane of nutrition on heat loss, energy retention and deposition of protein and fat in groups of growing pigs. Br. J. Nutr. 30: 21–35.CrossRefGoogle ScholarPubMed
Verstegen, M. W. A., Van Der Hel, W. and Cöp, W. A. G. 1974. Energy balances in groups of young pigs in relation to some environmental factors. In Energy Metabolism of Farm Animals (ed. Menke, K. H., Lantzsch, H. J. and Reichl, J. R.). Eur. Ass. Anim. Prod. Publ. No. 14, pp. 157–160. Univ. Hohenheim.Google Scholar