Hostname: page-component-586b7cd67f-rcrh6 Total loading time: 0 Render date: 2024-11-23T05:51:24.254Z Has data issue: false hasContentIssue false
  • English
  • Français

The response of pigs weaned at 5 weeks of age to digestible energy and lysine concentrations in the diet

Published online by Cambridge University Press:  02 September 2010

J. F. O'Grady
J. F. O'Grady
Affiliation:
An Foras Talúntais, Moorepark Research Centre, Fermoy, Co. Cork, Ireland
Get access

Abstract

Eight-hundred-and-fifty-two pigs were weaned at 5 weeks of age, and at an average weight of 8·5 kg were allocated in pens of 14 or 15 to diets having 13·6 or 14·6 MJ digestible energy (DE)/kg combined with 11·0 or 11·8 g lysine per kg.

Over a 5-week experimental period, pigs receiving the diet with the higher DE content had a lower daily feed intake, improved feed conversion efficiency (FCE) but a similar rate of gain to those getting less DE/kg. Efficiency of utilization of energy was poorer when DE content was higher.

Increasing lysine level increased daily feed intake and rate of gain while improving FCE. There were significant energy x lysine interactions. At the lower energy density, increasing the lysine level resulted in increased daily feed intakes whereas the reverse was the case at the higher energy density. Daily gain increased when lysine level was increased at the lower energy density but was unaffected at the higher density. Efficiency of energy utilization was improved by increasing lysine at the higher but not at the lower energy level.

Type
Research Article
Information
Animal Production , Volume 26 , Issue 3 , June 1978 , pp. 287 - 291
Copyright
Copyright © British Society of Animal Science 1978

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

Campbell, R. G. 1977. The response of early-weaned pigs to various protein levels in a high energy diet. Anitn. Prod. 24: 69–75.Google Scholar
Campbell, R. G., Taverner, M. R. and Mullaney, P. D. 1975. The effect of dietary concentrations of digestible energy on the performance and carcass characteristics of early-weaned pigs. Anim. Prod. 21: 285–294.Google Scholar
Henry, Y. 1969. Effects of varying levels of cellulose or non-nutritive diluent in the diet on growth performance of the pig and nutrient digestibility. Proc. 2nd Wld Conf. Anim. Prod., College Park, Md, 1968, pp. 337–338.Google Scholar
Likuski, H. J. A., Bowland, J. P. and Berg, R. T. 1961. Energy digestibility and nitrogen retention by pigs and rats fed diets containing non-nutritive diluents and varying in protein level. Can. J. Anim. Sci. 41: 89–101.CrossRefGoogle Scholar
O'grady, J. F. and Bowland, J. P. 1972. Response of early weaned pigs to diets of different digestible energy concentrations and the effects of cereal source and added molasses on performance. Can. J. Anim. Sci. 52: 87–97.CrossRefGoogle Scholar
O'Grady, J. F. and Lynch, P. B. 1978. Voluntary feed intake by lactating sows. Influence of system of feeding and nutritive density of the diet. Ir. J. agric. Res. 17: 1–5.Google Scholar
Owen, J. B. and Ridgman, W. J. 1967. The effect of dietary energy content on the voluntary intake of pigs. Anim. Prod. 9: 107–113.Google Scholar
Owen, J. B. and Ridgman, W. J. 1968. Further studies on the effect of dietary energy content on the voluntary intake of pigs. Anim. Prod. 10: 85–91.CrossRefGoogle Scholar