Table 1.
Vaginal discharge, pregnancy rates, and losses of embryo recipient mares synchronized with an intravaginal progesterone-releasing device at D4 to D8.
| Day of Synchronization | D4 | D5 | D6 | D7 | D8 | Total |
|---|---|---|---|---|---|---|
| Categories | ||||||
| Absent | 11 | 6 | 2 | 0 | 0 | 19 |
| Mild | 24 | 19 | 27 | 11 | 9 | 90 |
| Moderate | 2 | 0 | 6 | 8 | 5 | 21 |
| Severe | 0 | 0 | 0 | 0 | 1 | 1 |
| Total | 37 | 25 | 35 | 19 | 15 | 131 |
| Pregnancy rates | 73% (27/37) | 76% (19/25) | 69% (24/35) | 68% (13/19) | 71% (10/14) | 72% (93/130) |
| Pregnancy losses | 11% (3/27) | 11% (2/19) | 8% (2/24) | 15% (2/13) | 20% (2/10) | 12% (11/93) |
Days of synchronization: from four (D4) to eight (D8) days after insertion of the intravaginal progesterone-releasing device. Absent—no inflammation, as no vaginal secretions could be scooped out or irritation of the caudal vagina seen; Mild—hyperemia of the caudal vaginal mucosa with no discharge; Moderate—hyperemia of the caudal vagina and cloudy discharge; Severe—hyperemia of the caudal vagina and mucopurulent discharge covering the device.