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The effects of mineral supplementation to ewes in late pregnancy on Immunoglobulin G absorption by their lambs

Published online by Cambridge University Press:  20 November 2017

T. M. Boland ,
P.O. Brophy ,
J. J. Callan ,
P.J. Quinn ,
P. Nowakowski  and
T.F. Crosby
T. M. Boland
Affiliation:
Department of Animal Science and Production, University College Dublin, Newcastle, Co. Dublin, Ireland
J. J. Callan
Affiliation:
Department of Animal Science and Production, University College Dublin, Newcastle, Co. Dublin, Ireland
P.J. Quinn
Affiliation:
Department of Animal Science and Production, University College Dublin, Newcastle, Co. Dublin, Ireland
P. Nowakowski
Affiliation:
Department of Sheep Breeding, Kozuchowaska 7, 51-631 Wroclaw, Poland
T.F. Crosby*
Affiliation:
Department of Animal Science and Production, University College Dublin, Newcastle, Co. Dublin, Ireland
*
E-mail: [email protected]
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Extract

High levels of mineral supplementation to ewes in late gestation results in reduced blood serum immunoglobulin G (IgG) concentration and a lowered efficiency of colostral IgG absorption at 24h post partum (Boland et al., 2003). Given that lambs are born hypogammaglobulinemic and are dependent on the absorption of immunoglobulins from colostrum for immunity in early life, this decrease in serum IgG concentration is likely to present a significant challenge to the neonatal lamb in relation to disease susceptibility. The aim of this experiment was to determine which element(s) in the mineral supplement are having the greatest effect in reducing colostral IgG absorption and if the removal of this element(s) from the formulation would result in a return to what might be considered as normal immunoglobulin absorption values.

Type
Theatre Presentations
Information
Proceedings of the British Society of Animal Science , Volume 2004 , 2004 , pp. 92
Copyright
Copyright © The British Society of Animal Science 2004

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References

Boland, T. M., Brophy, P.O., Callan, J. J., Quinn, P.J., Nowakowski, P and Crosby, T.F. 2003. The effects of mineral block ingredients when offered to ewes in late pregnancy on Immunoglobulin G (IgG) absorption in their lambs. Proceedings of the British Society of Animal Science Winter Meeting, York. p197 Google Scholar
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