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Estimation by gas chromatography of 5β-pregnane-3α, 20α-diol in the urine of normal lactating and ketosed cows

Published online by Cambridge University Press:  01 June 2009

R. J. Heitzman
R. J. Heitzman
Affiliation:
Department of Anatomy, University of Birmingham*
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Summary

The measurement by gas chromatography of pregnanediol in the urine of normal and ketosed cows in the first 3 months of lactation is described. Mean pregnanediol levels, corrected for recovery losses, are reported for 3 groups of cows, namely: normal lactating cows 30·7 μg/1 urine; experimentally induced ketosed cows 22·3 μg/1 urine; and primary spontaneously ketosed cows, 31·4 μg/1 urine. No significant differences between the 3 groups of animals were found.

Type
Original Articles
Information
Journal of Dairy Research , Volume 34 , Issue 1 , February 1967 , pp. 21 - 25
Copyright
Copyright © Proprietors of Journal of Dairy Research 1967

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References

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