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A Comparison between rotational grazing and set stocking with ewes and lambs at three stocking rates

Published online by Cambridge University Press:  02 September 2010

N. E. Young
Affiliation:
The Grassland Research Institute, Hurley, Maidenhead, Berkshire
J. E. Newton
Affiliation:
The Grassland Research Institute, Hurley, Maidenhead, Berkshire
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Summary

In 1972 a comparison was made between rotational creep grazing (R—8 paddocks) and set stocking (S—2 paddocks) for ewes and their twin lambs at 3 stocking rates viz. 20 (H), 17 (M) and 14 (L) ewes/ha.

The herbage intakes/kg live weight of the R ewes were similar to those of the S ewes in period 1 (c. 7th week of lactation) but higher i n period 2 (c. 10th week of lactation). The intakes of the lambs were not affected by the grazing management in periods 3 or 5, but in period 4 the R lambs had a higher intake than those on S. The overall lamb growth rates were also higher on R compared with S. The carcass outputs (net of supplementary feed) were higher for any R treatment compared with any S treatment being 453, 451 and 427 for R and 419, 379 and 380 for S at the H, M and L stocking rates respectively.

Type
Research Article
Copyright
Copyright © British Society of Animal Science 1975

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References

REFERENCES

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: 89100.CrossRefGoogle Scholar
Corbett, J. L. 1968. Variation in the yield and composition of milk of grazing Merino ewes. Aust. J. agric. Res. 19: 283294.CrossRefGoogle Scholar
Freer, M., Jones, D. B. and Christian, K. R. 1972. Retention of energy and nitrogen by young sheep on different feeding patterns. J. agric. Sci., Camb. 78: 712.CrossRefGoogle Scholar
Hadjipieris, G. and Holmes, W. 1966. Studies on feed intake and feed utilization by sheep. I. The voluntary intake of dry, pregnant and lactating ewes. J. agric. Sci., Camb. 66: 217224.CrossRefGoogle Scholar
Hodge, R. W. 1966. The apparent digestibility of ewes' milk and dried pasture by young lambs. Aust. J. exp. Agric. Anim. Husb. 6: 139144.CrossRefGoogle Scholar
Hodgson, J. and Rodriguez, J. M. 1971. The measurement of herbage intake in grazing studies. A. Rep. Grassld Res. Inst., Hurley 1970: 132140.Google Scholar
Joyce, J. P. and Rattray, P. V. 1970. The intake and utilization of milk and grass by lambs. Proc. N.Z. Soc. Anim. Prod. 30: 94105.Google Scholar
Lambourne, L. J. 1956. A comparison between rotational grazing and set stocking for fat lamb production. N.Z. Jl Sci. Technol. 37A: 555568.Google Scholar
Langlands, J. P. 1972. Growth and herbage consumption of grazing Merino and Border Leicester lambs reared by their mothers or fostered by ewes of the other breed. Anim. Prod. 14: 317322.Google Scholar
Myers, L. F. 1972. In Plants for sheep in Australia (ed Leigh, J. H. and Noble, J. C.). Angus and Robertson, Sydney.Google Scholar
Tiixey, J. M. A. and Terry, R. A. 1963. A two stage technique for the in-vitro digestion of forage crops. J. Br. Grassld Soc. 18: 104111.Google Scholar
Wheeler, J. L. 1962. Experimentation in grazing management. Herb. Abstr. 32: 17.Google Scholar
Woodman, H. E., Norman, D. B. and French, M. H. 1931. Nutritive value of pasture. VII. The influence of the intensity of grazing on the yield, composition and nutritive value of pasture herbage (Part III). J. agric. Sci., Camb. 21: 267323.Google Scholar