Early embryo loss, morphology, and effect of previous immunization against androstenedione in the ewe

• Published in: Theriogenology Vol. 86; no. 5; pp. 1285 - 1293
• Main Authors: O'Connell, Anne R., Demmers, Kristina J., Smaill, Bronwyn, Reader, Karen L., Juengel, Jennifer L.
• Format: Journal Article
• Language: English
• Published: United States Elsevier Inc 15.09.2016
• Subjects: Androstenedione; Androstenedione - immunology; Animals; Embryo morphology; Embryo mortality; Female; Immunization; Ovulation; Ovulation - physiology; Pregnancy; Pregnancy Rate; Sheep; Sheep - embryology; Tissue and Organ Harvesting; Trophoblast; Sheep; Trophoblast; Embryo morphology; Androstenedione; Ovulation; Embryo mortality

In a naturally mated cycle, ova and viable embryo number as well as embryo size were assessed on Day 4, 10, 14, 18, and 30 of gestation in Romney ewes (n = 38–44 per gestational group). For Days 4–18 of gestation, embryos were recovered by flushing the reproductive tract after slaughtering of the ew...