Coagulation profile in different stages of pregnancy and under consideration of placental expulsion in dairy cattle.

It was the aim of the present study to determine different parameters of blood coagulation in dairy cattle in the course of gestation (n = 19) and during 9 days post partum (n = 40). The coagulation profile comprised prothrombin time, partial thromboplastin time, thrombin time, fibrinogen concentration, and platelet count. Prothrombin time was shorter in the 2nd month of gestation (13.

Coagulation profile of dairy cattle in the periparturient period.

A coagulation profile including prothrombin time (PT), partial thromboplastin time (PTT), thrombin time (TT) and fibrinogen concentration was determined in 52 clinically healthy German Black Pied cattle during the periparturient period. In these cows a hypercoagulability appeared within the first 48 hours after parturition. Prothrombin time and partial thromboplastin time for these animals were significantly shorter than those of nonpregnant animals.