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The mean temperature-humidity index (THI) change (black circles), raw data of the changes in the ovarian (red circles), and the vaginal temperature (blue circles) in three cows at 9 to 18 days after the surgery (15 to 24 days after PGF2α treatment). THI range in this period represents a non-stress conditions for beef cows. The ovarian and vaginal temperature showed synchronized diurnal variation.
