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Effect of partial replacement of barley with molassed sugar beet feed in concentrate given and winter shearing on the performance of pregnant ewes and survival of new-born lambs

Published online by Cambridge University Press:  05 November 2021

E.O. Egan ,
A.B. Notman  and
J. Hill
E.O. Egan
Affiliation:
Dept of Agriculture and Business Management, Writtle College, Chelmsford CM1 3RR
A.B. Notman
Affiliation:
Dept of Agriculture and Business Management, Writtle College, Chelmsford CM1 3RR
J. Hill
Affiliation:
Dept of Agriculture and Business Management, Writtle College, Chelmsford CM1 3RR
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Extract

Winter shearing of ewes has been shown to reduce the incidence of hypoglycaemia in twin bearing ewes (Symonds et al, 1986), increase litter birthweight and reduce lamb mortality especially in housed conditions (Austin. 1982. Vipond et al, 1987). It is however not clear if winter shearing effects lamb birth weight independently of nutrient intake or reflects solely an increase in the intake of nutrients in late pregnancy. The aim of the experiment was to study the interaction between changing the source of energy in the concentrate given in late pregnancy and winter shearing in multiparous ewes.

Type
Programme
Information
Proceedings of the British Society of Animal Science , Volume 1997 , 1997 , pp. 181
Copyright
Copyright © British Society of Animal Science 1997

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References

Austin, A.R. 1982. Winter shearing of housed pregnant ewes. Sheep Veterinary Record 6: 36–68.Google Scholar
Symonds, M.E., Bryant, M.J., Shepherd, D.A.L. and Lomax, M.A. 1986. The effects of winter shearing on the energy metabolism of the pregnant ewe. British Journal of Nutrition 56: 635–643.CrossRefGoogle Scholar
Vipond, J.E., King, M.E., Inglis, D.M. and Hunter, E.A. 1987. The effect of winter shearing of housed pregnant ewes on food intake and animal performance. Animal Production 45: 211–221.Google Scholar