Modification of the embryo-maternal relationship in ewes by progesterone treatment early in the oestrous cycle
Autor: | L. P. Cahill, R. A. S. Lawson |
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Rok vydání: | 1983 |
Předmět: |
Embryology
medicine.medical_specialty Time Factors Cell Survival Uterus Luteal phase Biology Endocrinology Estrus Pregnancy Internal medicine Luteolysis medicine Animals Blastocyst Progesterone reproductive and urinary physiology Estrous cycle Sheep urogenital system Obstetrics and Gynecology Embryo Cell Biology Embryo Transfer medicine.disease Embryo transfer medicine.anatomical_structure Reproductive Medicine Female |
Zdroj: | Reproduction. 67:473-475 |
ISSN: | 1741-7899 1470-1626 |
DOI: | 10.1530/jrf.0.0670473 |
Popis: | When 25 mg progesterone/day were injected into ewes on Days 0-3 of the oestrous cycle, (i) the subsequent cycle was shortened by 4 days and (ii) on Day 6 such ewes provided an acceptable uterine environment for the survival of 10-day-old embryos. We suggest that exposure of the non-pregnant uterus to approximately 8 days of normal luteal concentrations of progesterone may be necessary to initiate luteolysis. |
Databáze: | OpenAIRE |
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