Table 2.
Pregnancy rates (number of animals) by dosage and device type
| Treatment, mL | CIDR1 | SMB2 | Treatment total |
|---|---|---|---|
| 1.50–1.99 | 50% | 50% | |
| (14) | (14) | ||
| 2.00–2.49 | 76% | 77% | 76% |
| (76) | (13) | (89) | |
| 2.50–2.99 | 72% | 60% | 67% |
| (420) | (258) | (678) | |
| 3.00–3.49 | 69% | 68% | 68% |
| (217) | (279) | (496) | |
| 3.50–3.99 | 69% | 53% | 62% |
| (54) | (36) | (90) | |
| 4.00 | 44% | 50% | 47% |
| (18) | (12) | (30) | |
| 5.00 | 100% | 0% | 20% |
| (1) | (4) | (5) | |
| Study Total | 70% | 63% | 67% |
| (800) | (602) | (1402) |
1CIDR = controlled internal drug releasing device (Pfizer Inc., New York, NY).
2SMB = Syncro-Mate-B device (Sanofi Animal Health, Overland Park, KS).