Hostname: page-component-586b7cd67f-rdxmf Total loading time: 0 Render date: 2024-11-23T14:50:24.521Z Has data issue: false hasContentIssue false
  • English
  • Français

The intakes and growth rates of grazing border Leicester × Merino lambs weaned at 21, 49 and 77 days

Published online by Cambridge University Press:  02 September 2010

J. P. Langlands  and
G. E. Donald
J. P. Langlands
Affiliation:
CSIRO, Pastoral Research Laboratory, Armidale, NSW, 2350, Australia
G. E. Donald
Affiliation:
CSIRO, Pastoral Research Laboratory, Armidale, NSW, 2350, Australia
Get access

Summary

Weaning increased forage intake and depressed live weight; differences in intakes and growth rates of lambs born to South Australian and Fine wool Merinos were small. At 21 days, sucking lambs received less than 2% of their digestible organic matter from pasture and half the lambs weaned at this age died but the survivors consumed twice as much forage as unweaned sheep in the 14 days following weaning. At 49 days, unweaned lambs obtained approximately 41% of their digestible organic matter from pasture, and weaning resulted in less mortality and a proportionally smaller increase in forage consumption.

Type
Research Article
Information
Animal Production , Volume 21 , Issue 2 , October 1975 , pp. 175 - 181
Copyright
Copyright © British Society of Animal Science 1975

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

Black, J. L. 1971. A theoretical consideration of the effect of preventing rumen fermentation on the efficiency of utilisation of dietary energy and protein in lambs. Br. J. Nutr. 25: 31–55.CrossRefGoogle ScholarPubMed
Corbett, J. L. 1968a. Variation in the yield and composition of milk of grazing Merino ewes. Aust. J. agric. Res. 19: 283–294.CrossRefGoogle Scholar
Corbett, J. L. 1968b. Early weaning of Merino lambs. Wool Technol. Sheep Breed. 15: 49–55.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: 317–322.Google Scholar
Langlands, J. P. 1973. Milk and herbage intakes by grazing lambs born to Merino ewes and sired by Merino, Border Leicester, Corriedale, Dorset Horn and Southdown rams. Anim. Prod. 16:285–291.Google Scholar
Owen, J. B., Davies, D. A. R. and Ridgman, W. J. 1969. The effects of varying the quantity and distribution of liquid feed in lambs reared artificially. Anim. Prod. 11: 1–9.Google Scholar
Penning, P. D., Cottrell, K. M. and Treacher, T. T. 1973. The effects of quantity and distribution of milk substitute on the performance of artificially reared lambs to forty-eight days of age. Anim. Prod. 17: 179–186.Google Scholar