Common Tests for Detection of Pregnancy In Pigs
Technique | Test Type | Application of Test After Breeding (Accuracy) |
|---|---|---|
Ultrasonography Real-time (B-mode) Pulse echo (A-mode) Doppler | Indirect Direct/Indirect Direct | ≥ 27 days (> 95%) 30–75 days (95%) ≥ 35 days (> 85%) |
Estrus detection | Indirect | Daily testing 18–24 days (75–85%) and through gestation (98%) |
External physical signs | Indirect | > 55 days (gilts); > 84 days (sows) |
Rectal palpation (sows) | Indirect | 30 days (94%), > 60 days (100%) |
In these topics