Hostname: page-component-586b7cd67f-rcrh6 Total loading time: 0 Render date: 2024-11-23T06:45:21.427Z Has data issue: false hasContentIssue false
  • English
  • Français

The performance and intake of weaned lambs grazing S24 perennial ryegrass, with and without supplementation

Published online by Cambridge University Press:  02 September 2010

J. E. Newton  and
N. E. Young
J. E. Newton
Affiliation:
The Grassland Research Institute, Hurley, Maidenhead, Berks
N. E. Young
Affiliation:
The Grassland Research Institute, Hurley, Maidenhead, Berks
Get access

Summary

Two forms of supplement, barley or dried grass pellets (G) were given to weaned lambs, set-stocked at pasture, at three stocking rates (43·5, 60 and 87 per hectare). The supplements were given either from weaning or from the time growth rate fell below a target value. The supplements significantly increased the proportion of lambs reaching the target weight (35 kg) and G was significantly better than barley, but slightly more G was given. The substitution value of supplement for herbage was 0·48 ± 0·12 and there was no difference in this value between barley and G. The proportion of lambs reaching the target slaughter weight was not influenced by whether the supplement was offered at weaning or delayed until lamb growth declined below a target level. Increase in stocking rate depressed the herbage intake and growth rate of the unsupplemented control lambs.

Type
Research Article
Information
Animal Production , Volume 18 , Issue 2 , April 1974 , pp. 191 - 199
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

Allden, W. G. and Jennings, A. C. 1962. Dietary supplements to sheep grazing mature herbage in relation to herbage intake. Proc. Aust. Soc. Anim. Prod. 4: 145–153.Google Scholar
Campbell, A. G., Phillips, D. S. M. and O'Reilly, E. D. 1962. An electronic instrument for pasture yield estimation. J. Br. Grassld Soc. 17: 89–100.Google Scholar
Hodgson, J. and Rodriguez, J. M. 1971. The measurement of herbage intake in grazing studies. Ann. Rep. Grassld Res. Inst, 1970, pp. 132–140.Google Scholar
Holder, J. M. 1962. Supplementary feeding of grazing sheep—its effect on pasture intake. Proc. Aust. Soc. Anim. Prod. 4: 154–159.Google Scholar
Langlands, J. P. 1969. The feed intake of sheep supplemented with varying quantities of wheat while grazing pastures differing in herbage availability. Aust. J. agric. Res. 20: 919–924.CrossRefGoogle Scholar
Tait, R. M. 1972. The utilization of dried grass by early weaned lambs. J. Br. Grassld Soc. 27: 217–220.Google Scholar