Hostname: page-component-848d4c4894-p2v8j Total loading time: 0.001 Render date: 2024-05-17T15:46:54.125Z Has data issue: false hasContentIssue false
  • English
  • Français

A note on the heat production of fasting pigs in the range 16 to 96 kg live weight

Published online by Cambridge University Press:  02 September 2010

C. W. Holmes  and
K. Breirem
C. W. Holmes
Affiliation:
Massey University, Palmerston North, New Zealand
K. Breirem
Affiliation:
Massey University, Palmerston North, New Zealand
Get access

Summary

The results of earlier work by Breirem have been reanalysed, and some recent results are presented. Breirem's results indicated that for pigs of 16 to 96 kg live weight and fasted for 4 to 9 days, heat production (HP) was related to live weight (LW) according to:

HP = 229 LW0·512

which could be converted to:

HP = 185 LW0·569

This equation gives values for fasting heat production which are about 20% higher than those usually estimated from Breirem's results on pigs of 16 to 196 kg. The recent results, for pigs fasted for 24 hr, were slightly higher than would be indicated by the latter equation. If the values derived from the reanalysis of Breirem's data are related to several estimates of the energy required for maintenance by pigs, values for km% between 87 to 103% are obtained.

Type
Research Article
Information
Animal Production , Volume 18 , Issue 3 , June 1974 , pp. 313 - 316
Copyright
Copyright © British Society of Animal Science 1974

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

REFERENCES

Agricultural Research Council. 1967. The Nutrient Requirements of Farm Livestock. No. 3. Pigs. Agricultural Research Council, London.Google Scholar
Breirem, K. 1936. [Maintenance metabolism of growing pigs.] no. 170, Beretni. Forsogslab., Køzibenhavn.Google Scholar
Breirem, K. 1939. [Energy exchange in pigs.] Tieretnährung 11: 487–528.Google Scholar
Brody, S. and Kibler, H. H. 1944. Resting energy metabolism and pulmonary ventilation in growing swine. Res. Bull. Mo. agric. Exp. Stn, No. 380.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
Deighton, T. 1929. A study on the metabolism of two breeds of swine (with observations on a third). J. agric. Sci., Camb. 19: 140–184.CrossRefGoogle Scholar
Deighton, T. 1937. A study of the fasting metabolism of various breeds of hogs. J. agric. Sci., Camb. 27: 317–331.CrossRefGoogle 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. Br. J. Nutr. 25: 373–384.CrossRefGoogle Scholar
Holmes, C. W. 1973. The energy and protein metabolism of pigs growing at a high ambient temperature. Anim. Prod. 16: 117–133.Google Scholar
Kielanowski, J. 1972. The energy requirements of the growing pig. In ‘Pig Production’, pp. 183–201. Butterworth, London.Google Scholar
Mitchell, H. H. 1962. Comparative Nutrition of Man and Domestic Animals. Vol. 1. Academic Press, New York.Google Scholar
Mitchell, H. H. 1964. Comparative Nutrition of Man and Domestic Animals. Vol. II. Academic Press, New York.Google Scholar