Common Tests for Detection of Pregnancy In Pigs
Technique | Test Type | Application of Test After Breeding (Accuracy) |
|---|---|---|
Estrus detection | Indirect | Daily testing 18–25 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%) |
Ultrasonography A-mode Doppler Real-time (B-mode) | Indirect Direct/Indirect Direct | 30–75 days (95%) ≥35 days (>85%) ≥24 days (>95%) |