METHODS OF TREATMENT OF RETAINED PLACENTA IN FRIESIAN COWS

Retained placenta in dairy cows is when the fetal membrane or placenta does not exit the uterus within 9-12 hours after calving. Retained placenta is a pathological disorder when the placenta does not fall out within a certain period of time after calving. The placenta in cows is most often expelled 6 (77.3%) to 8 hours after calving (Van Werven et al., 1992). The incidence of placental abruption in cows averages 8.6%. The cause of placental exit is not fully understood. There are several factors on which the separation of the fetal placenta from the uterus depends, they can be: genetic (inherited), nutritional, immunological, and as a result of some diseases of the reproductive tract. The causes of placental retention can be: fatigue of the uterus, inflammatory conditions of the bed, an insufficient amount of some hormones, lack of vitamins and/or minerals, toxic effects of some substances and poisons, and mechanical obstacles. The conclusion is that cows with retained placenta belong to the risk group because they are prone to inflammation of the uterus, so they have a prolonged service period and delayed or absent recovery of the cyclic activity of the ovaries, which can be the cause of sterility, temporary or permanent. Treatment of retained placenta should be carried out in time, removing the fetal placenta manually and inserting foaming tablets for intrauterine use. After that, PgF2α and oxytocin are applied.