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The effects of feeding propylene glycol to ewes during late pregnancy and early lactation

Published online by Cambridge University Press:  20 November 2017

D. Handford
Affiliation:
ASRC, School of Agriculture, Harper Adams University College, Edgmond, Newport, Shropshire TF10 8NB, UK
J. Percival
Affiliation:
ASRC, School of Agriculture, Harper Adams University College, Edgmond, Newport, Shropshire TF10 8NB, UK
D. Wilde
Affiliation:
Frank Wright Ltd., Blenheim House, Blenheim Rd., Airfield Industrial Estate, Ashbourne, Derbyshire DE6 1HA, UK
A.M. Mackenzie
Affiliation:
ASRC, School of Agriculture, Harper Adams University College, Edgmond, Newport, Shropshire TF10 8NB, UK
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Extract

The pregnant uterus has a requirement for glucose that rises rapidly towards the end of pregnancy (Robinson et al., 1977). Despite this, the dry matter (DM) intake of the ewe is often depressed during this period causing excessive mobilisation of adipose tissue and an increased concentration of plasma ketones. Propylene glycol resists fermentation in the rumen and following absorption is converted to glucose and glycogen (Andrews, 1982). There is little data available on how in feed inclusion of propylene glycol affects the productivity and energy metabolism of late pregnant and lactating ewes.

Type
Poster Presentations
Copyright
Copyright © The British Society of Animal Science 2002

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References

Andrews, A.H. (1982). Effects of glucose and propylene glycol on pregnancy toxaemia in ewes. Veterinary Record 110, 8485.Google Scholar
Robinson, J.J., McDonald, I., Fraser, C. & Crofts, R.M.J. (1977). Studies on reproduction in prolific ewes. 1. Growth of the products of conception. Journal of Agricultural Science 88, 539552.Google Scholar