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Table 2 Physical signs of estrus in pregnant and non pregnant animals

From: Pre-service ultrasonic and manual evaluation of the reproductive organs of dairy cows presumed to be in estrus

Types of physical sign of estrus Overall [%] (n = 62) Pregnant [%] (n = 18) Non-pregnant [%] (n = 44)
Uterine turgidity 82.3 85 81
Palpable ovarian follicles 67.7 73.8 56
Open cervix 88.7 93.75 90