doi: 10.1530/jrf.0.0440453.
Total unconjugated oestrogen and progesterone concentrations in peripheral blood during pregnancy in the dog
- PMID: 1181413
- DOI: 10.1530/jrf.0.0440453
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Total unconjugated oestrogen and progesterone concentrations in peripheral blood during pregnancy in the dog
J Reprod Fertil.
1975 Sep.
Abstract
Daily blood samples were withdrawn from three bitches throughout gestation and at intervals during parturition. The highest mean oestrogen value of 26-1 +/- 6-0 pg/ml was detected on the last day of pro-oestrus, and a lower post-oestrous peak occurred shortly after the maximum progesterone value of 17-0 +/- 1-0 ng/ml which was recorded 18 days after first service. No oestrogen rise was detected before parturition, and progesterone could not be detected after the end of parturition.