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Time of Ovulation Relative to Mounting Activity in Dairy Cattle
artificial insemination estrous behavior ovulation radiotelemetry
2008/7/3
Time of ovulation was determined for Holstein cows (n = 51) for estruses occurring spontaneously (n = 33) or those induced by PGF2 (n = 86). Ultrasound examination of ovaries was conducted 42 to 49 d ...