Progesterone in mare's milk: suitable for early pregnancy detection?
Borst, G.H.; Smidt, W.J.; Berghuis, G.A.
Tijdschrift Voor Diergeneeskunde 110(10): 400-401
1985
ISSN/ISBN: 0040-7453 PMID: 4012748 Document Number: 266018
The concentrations of progesterone in milk were determined in twenty-one mares to establish a diagnosis of pregnancy in an early stage (15-19 days). Progesterone levels varied from 0.0 to 4.2 ng/ml in nine non-pregnant mares and from 6.7 to 30.0 ng/ml in twelve pregnant mares. Progesterone levels were determined by an enzyme-linked immunosorbent assay (ELISA).
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