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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