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Table 1 Clinical and ultrasonographic features associated with cloprostenol induced early abortions in four Swedish Red and White heifers.

From: Clinical features and hormonal profiles of cloprostenol-induced early abortions in heifers monitored by ultrasonography

Clinical/Ultrasonographic Features Heifer-1 Heifer-2 Heifer-3 Heifer-4
Stages of gestation* (days) 63 77 83 116
Heartbeat rate (beats per minute) 170–182 178–186 180–184 176–182
Foetal death post-CP treatment (Hrs) < 24 < 24 24 – 48 24 – 48
Foetus/FM expelled** (Hrs) 56 – 72 80 – 96 75 80 – 96#
CRL of expelled foetus (cm) 9 12 15 30
Foetus expelled with unruptured FM Yes Yes Yes No#
Thick mucous vaginal discharge Yes Yes No No
Blood tinged vaginal discharge No No Yes Yes
Showed standing heat*** Yes Yes No No
  1. *on the day of cloprostenol treatment; **after cloprostenol treatment; ***within two days after abortion; #only the foetal membrane was expelled but the foetus was stacked in the vagina and removed manually; CP = cloprostenol; Hrs = hours; CRL = crown-rump length; FM = foetal membrane.