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Growth and backfat depth of pigs kept at a high 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. Two experiments have been carried out to determine the effect of a high air temperature, 32·33°C, on growth and backfat depth of pigs, by comparison with a thermo-neutral air temperature, 22·24°C. The diet consisted predominantly of whey, since it was expected thatthis would enable appetite to be maintained at the higher temperature.

2. Food intake was reduced by 5% to 7% during the period of exposure to 32°C in Experiments 1 and 2 respectively. Growth rate and FCE were reduced significantly only in Experiment 2.

3. Backfat depths measured above the eye muscle were significantly increased by the hot treatment in both experiments; those measured on the split carcass were consistently greater for the hot treatment.

Type
Research Article
Information
Animal Production , Volume 13 , Issue 3 , August 1971 , pp. 521 - 527
Copyright
Copyright © British Society of Animal Science 1971

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References

REFERENCES

Buck, S. F., Harrington, G. and Johnson, R. F. 1962. The prediction of lean percentage of pigs of bacon weight from carcass measurements. Anim. Prod. 4: 25–36.Google Scholar
Cassutto, Y. and Chaffee, R. R. J. 1963. The thermogenic role of the liver in the heat-acclimated hamster. Can. J. Physiol. and Pharmacol. 41: 1840–1842.Google Scholar
Collins, K. J. and Weiner, J. S. 1968. Endocrinological aspects of exposure to high temperatures. Physiol. Rev. 48: 785–839.CrossRefGoogle Scholar
Friend, D. W. and Cunningham, H. M. 1964. Effects of feeding frequency on metabolism, rate and efficiency of gain and on carcass quality of pigs. J. Nutr. 83: 251–256.CrossRefGoogle ScholarPubMed
Friend, D. W. and Cunningham, H. M. 1967. Growth, carcass, blood and fat studies with pigs fed once or five times daily. J. Anim. Sci. 26: 316–322.CrossRefGoogle Scholar
Fuller, M. F. and Cadenhead, A. 1969. 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. and Thorbek, G.), pp. 455–460. Oriel Press, Newcastle.Google Scholar
Heitman, H. and Hughes, E. H. 1949. The effects of air temperature and relative humidity on the physiological wellbeing of swine. J. Anim. Sci. 8: 171–181.CrossRefGoogle Scholar
Heitman, H., Kelly, C. F. and Bond, T. E. 1958. Ambient air temperature and weight gain in swine. J. Anim. Sci. 17: 62–67.CrossRefGoogle Scholar
Holme, D. W. and Coey, W. E. 1967. The effect of environmental temperature and method of feeding on performance and carcass composition of bacon pigs. Anim. Prod. 9: 209–218.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. 1971. Growth of pigs fed whey at two ambient temperatures. Anim. Prod. 13: 1–6.Google Scholar
Ingram, D. L. and Mount, L. E. 1965. The metabolic rates of young pigs living at high environmental temperatures. Res. vet. Sci. 6: 300–306.CrossRefGoogle Scholar
Ingram, D. L. and Slebodzinski, A. 1965. Oxygen consumption and thyroid gland activity during adaptation to high ambient temperatures in young pigs. Res. vet. Sci. 6: 522–530.CrossRefGoogle ScholarPubMed
Morrison, S. R., Hintz, H. F. and Givens, R. L. 1968. A note on the effect of exercise on behaviour and performance of confined swine. Anim. Prod. 10: 341–344.Google Scholar
Seymour, E. W., Speer, V. C, Hays, V. W., Mangold, D. W. and Hazen, T. E. 1964. Effects of dietary protein level and environmental temperature on performance and carcass quality of growing-finishing swine. J. Anim. Sci. 23: 375–379.CrossRefGoogle Scholar
Sorensen, P. H. 1962. Influence of climatic environment on pig performance. In Nutrition of Pigs and Poultry (ed. Morgan, J. T. and Lewis, D.), pp. 88–103. Butterworth's, London.Google Scholar
Sugahara, M., Baker, D. H., Harmon, B. G. and Jensen, A. H. 1969. Effect of air temperature and dietary amino acids on carcass fat deposition in rats. J. Nutr. 98: 344–350.CrossRefGoogle Scholar
Sugahara, M., Baker, D. H., Harmon, B. G. and Jensen, A. H. 1970. Effect of ambient temperature on performance and carcass development in young swine. J. Anim. Sci. 31: 59–62.CrossRefGoogle Scholar
Tonks, H. and Smith, W. C. 1965. The effects of high-temperature, high-humidity, indoor environment on the performance of bacon pigs. Anim. Prod. 7: 280 (Abstr.).Google Scholar
Vanschoubroek, F., De Wilde, R. O. and Lampo, PH. 1967. The quantitative effects of feed restriction in fattening pigs on weight gain, efficiency of feed utilization and backfat thickness. Anim. Prod. 9: 67–74.Google Scholar