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Comparison of oestrone sulphate concentrations in mammary secretions during lactogenesis and lactation in dairy ruminants

Published online by Cambridge University Press:  01 June 2009

Maureen Hamon ,
Ivan R. Fleet  and
R. Brian Heap
Maureen Hamon
Affiliation:
AFRC Institute of Animal Physiology and Genetics Research, Babraham, Cambridge CB2 4AT, UK
Ivan R. Fleet
Affiliation:
AFRC Institute of Animal Physiology and Genetics Research, Babraham, Cambridge CB2 4AT, UK
R. Brian Heap
Affiliation:
AFRC Institute of Animal Physiology and Genetics Research, Babraham, Cambridge CB2 4AT, UK
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Extract

Oestrone sulphate is quantitatively a major oestrogen in pregnant goats rising gradually in concentration in milk and plasma as placental function develops (Heap et al. 1984). We report here that its concentration in mammary secretions increases sharply at the time of parturition. The results support the idea that oestrone sulphate in mammary secretions could be used as a predictor of the onset of parturition in dairy animals.

Type
Short Communication
Information
Journal of Dairy Research , Volume 57 , Issue 3 , August 1990 , pp. 419 - 422
Copyright
Copyright © Proprietors of Journal of Dairy Research 1990

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References

REFERENCES

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