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Transcript of Theriogenology Research
At ovulation estrogen levels drop and VST level return to baseline.
Vulvar surface temperature rise/drop in a valid tool to predict ovulation in the sow and gilt. Conclusion Results Following thermal readings:
Estrus detection using a live boar.
Once Estrus observed:
Trans-rectal ultrasound twice daily to determine ovulation Estrus Detection &
Ovulation Infrared thermal imaging camera
used twice daily to measure:
Vulvar Surface Temperature
Gluteal Surface Temperature Thermography 25 Gilts – Synced with Altrenogest (14 days orally)
PG600 (1 injection)
27 Sows – Weaned
Control – 30 Pregnant Sows (60 days gest)
Day 0 of experiment
Sow (Day of weaning)
Gilt (Day of PG600 injection)
Control (Day 60 of gestation) Estrus Synchronization Saara C. Scolari, DVM;
Sherrie G. Clark, DVM, MS, PhD, Diplomate ACT;
Robert V. Knox, PhD;
Manoel A. Tamassia, DVM, MS, PhD, Diplomate ACT Vulvar skin temperature changes significantly during estrus in swine as determined by digital infrared thermography