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The energy and protein metabolism of pigs growing at a high ambient temperature

Published online by Cambridge University Press:  02 September 2010

C. W. Holmes
C. W. Holmes
Affiliation:
Massey University, Palmerston North, New Zealand
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Summary

1. The experiment was designed to investigate the effect of growth at a high ambient temperature, 33–35°C, on the protein and energy metabolism of pigs, compared with 25°C. The high temperature caused an increase in rectal temperature of 1·4° to 1·7°C. The animals were given two low levels of feeding while growing between 25 and 70 kg live weight; energy and nitrogen retention were measured periodically.

2. The apparent digestibilities of the dietary dry matter and energy were decreased and urinary nitrogen losses were increased at the high temperature. Heat production was increased at the high temperature, by between 2% and 10%, the effect becoming more pronounced during the course of the experiment. Retention of energy and nitrogen was reduced at the high temperature.

3. The net efficiency of utilization of metabolized energy above maintenance was between 63% and 67%, and was not significantly affected by live weight or temperature. The results suggested that maintenance requirement was increased at the high temperature.

4. Analyses of sample joints indicated that the high temperature caused an increase in fat percentage only at the higher level of feeding; this result agreed with fat and protein retention calculated from the balances.

Type
Research Article
Information
Animal Production , Volume 16 , Issue 2 , April 1973 , pp. 117 - 133
Copyright
Copyright © British Society of Animal Science 1973

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References

REFERENCES

Adam, J. L. and Smith, W. C. 1966. The use of sample joints in predicting the composition of the pig carcass. Anim. Prod. 8: 85–94.Google Scholar
Agricultural Research Council. 1967. The Nutrient Requirements of Farm Livestock. No. 3. Pigs. Agricultural Research Council, London.Google Scholar
Association of Official Agricultural Chemists. 1965. Methods of Analysis, 10th ed. Association of Official Agricultural Chemists, Washington, D.C.Google Scholar
Barton, R. A. and Kirton, A. H. 1958. Assessment of fat in mutton and lamb. Proc. N.Z. Soc. Anim. Prod. 18: 112–125.Google Scholar
Benson, G. K. and Morris, L. R. 1971. Foetal growth and lactation in rats exposed to high temperatures during pregnancy. J. Reprod. Fert. 27: 369–384.CrossRefGoogle ScholarPubMed
Blaxter, K. L. and Wainman, F. W. 1961. Environmental temperature and the energy metabolism and heat emission of steers. J. agric. Sci., Camb. 56: 81–90.CrossRefGoogle Scholar
Breirem, K. 1935. [Energy metabolism in swine.] Beretn. Forsgslab., No. 162.Google Scholar
Breirem, K. 1939. [Metabolism of pigs.] Tierernährung 11: 487–528.Google Scholar
Brouwer, E. 1965. Report of sub-committee on constants and factors. In Energy Metabolism (ed. Blaxter, K. L.), pp. 441–443, –Academic Press, London.Google Scholar
Cassuto, Y. 1968. Metabolic adaptions to chronic heat exposure in the golden hamster. Am. J. Physiol. 214: 1147–1151.CrossRefGoogle ScholarPubMed
Close, W. H. 1971. The effect of environmental temperature and plane of nutrition on heat losses from individual pigs. Anim. Prod. 13: 295–302.Google Scholar
Colin, J., Tinbal, J., Houdas, Y., Boutelier, C. and Grier, J. D. 1971. Computation of mean body temperature from rectal and skin temperatures. J. appl. Physiol. 31: 484–489.CrossRefGoogle ScholarPubMed
Collins, K. J. and Weiner, J. S. 1968. Endocrinological aspects of exposure to high temperatures. Physiol. Rev. 48: 785–839.CrossRefGoogle Scholar
Einhorn, J., Dimttriadou, A. and Gadhok, R. S. 1968. The effect of overheating on the oxygen consumption of rats at various levels of thyroid function. J. Endocr. 41: 373–376.CrossRefGoogle ScholarPubMed
Frazer, A. F. 1970. Studies on heat stress in pigs in a tropical environment. Trop. Anim. Hlth Prod. 2: 76–87.CrossRefGoogle Scholar
Fuller, M. F. and Cadenhead, A. 1969. The preservation of urine and faeces to prevent losses of energy and nitrogen during metabolism experiments. In Energy Metabolism of Farm Animals (ed. Blaxter, K. L., Kielanowski, J., Thorbek, G.), pp. 455–459, Oriel Press, Newcastle upon Tyne.Google Scholar
Graham, N. McC. 1964. Influence of ambient temperature on the heat production of pregnant ewes. Aust. J. agric. Res. 15: 982–988.Google Scholar
Graham, N. McC. 1965. Metabolism of the pregnant ewe and some effects of thermal stress. In Energy Metabolism (ed. Blaxter, K. L.), pp. 387–394. Academic Press, London.Google Scholar
Graham, N. McC., Wainman, W., Blaxter, K. L. and Armstrong, D. G. 1959. Environmental temperature, energy metabolism and heat regulation in sheep. J. agric. Sci., Camb. 52: 13–24.CrossRefGoogle Scholar
Holmes, C. W. 1971. Growth and backfat depth of pigs kept at a high temperature. Anim. Prod. 13: 521–527.Google Scholar
Houghton, T. R., Butterworth, M. H., King, D. and Goodyear, R. 1964. The effect of different levels of food intake on fattening pigs in the humid tropics. J. agric. Sci., Camb. 63: 43–51.CrossRefGoogle Scholar
Ingram, D. L. 1964. The effect of environmental temperature on body temperatures, respiratory frequency and pulse rate in the young pig. Res. vet. Sci. 5: 348–356.CrossRefGoogle Scholar
Ingram, D. L. and Mount, L. E. 1965. The metabolic rates of young pigs living at high ambient temperatures. Res. vet. Sci. 6: 300–306.CrossRefGoogle ScholarPubMed
Ingram, D. L. and Slebodzinski, A. 1965. Oxygen consumption and thyroid activity during adaptation to high ambient temperatures in young pigs. Res. vet. Sci. 6: 522–530.CrossRefGoogle ScholarPubMed
Kleiber, M. 1965. Metabolic body size. In Energy Metabolism (ed. Blaxter, K. L.), pp. 427–432. Academic Press, London.Google Scholar
Robinson, K. W. and Lee, D. H. K. 1947. The effect of the nutritional plane upon the reactions of animals to heat. J. Anim. Sci. 6: 182–194.CrossRefGoogle ScholarPubMed
Rogerson, A. 1960. The effect of environmental temperature on the energy metabolism of cattle. J. agric. Sci., Camb. 55: 359–364.CrossRefGoogle Scholar
Sharma, V. D., Young, L. G., and Smith, G. C. 1971. Energy utilisation by the Lacombe and Yorkshire breeds of pig. Can. J. Anim. Sci. 51: 761–770.CrossRefGoogle Scholar
Van es, A. J. H., Nijkamp, H. J., VAN Weerden, E. J. and Van hellemond, K. K. 1969. Energy, carbon and nitrogen balance experiments with veal calves. In Energy Metabolism of Farm Animals (ed. Blaxter, K. L., Kielanowski, J., Thorbek, G.), pp. 197–201. Oriel Press, Newcastle upon Tyne.Google Scholar
Vercoe, J. E. 1969. The effect of increased rectal temperature on nitrogen metabolism in Brahmam cross and Shorthorn × Hereford steers fed on lucerne chaff. Austr. J. agric. Res. 20: 602–612.CrossRefGoogle Scholar
Vercoe, J. E., and Frisch, J. E. 1970. The effect of increased rectal temperature on nitrogen metabolism in Brahman cross and Shorthorn × Hereford steers fed on a low-nitrogen roughage. Aust. J. agric. Res. 21: 857–863.CrossRefGoogle Scholar
Walker, D. M. and Norton, B. W. 1971. The utilization of the metabolizable energy of diets of different protein content by the milk-fed lamb. J. agric. Sci., Camb. 77: 363–369.CrossRefGoogle Scholar
Williamson, G. and Payne, W. J. A. 1959. The Introduction to Animal Husbandry in the Tropics. Longman, London.Google Scholar