Вплив уведеного сухостійним коровам трутенату на вміст цинку, купруму і мангану в крові, материнській частині плаценти і перебіг отелення

In the experiment carried out on three groups of dry cows 6 goals in each, the influence of introducing of Trutenat to them on the content of Zincum, Cuprum and Mangan in carunculs of the placenta maternal part and the course of calving researched. The drug is not introduced to cows of control groups, the first group with course of physiological calving and the third at detention of the placenta, and the second group was injected three times at intervals of 7 days, were injected subcutaneously Trutenat in a dose of 7 ml/100 kg of body weight. At all cows throughout 30–45 minutes after birth of the calf we exterpited 2 caruncles, in which we determined the mineral content. The level fluctuation of the test substances in carunculs depending on the current third stage of calving set. The concentration of Zincum in carunculs of cows during the detention of the placenta is higher than in cows of the second (experimental) and the first (control) groups, and Cuprum is lower compared to the first and the second control group, Mangan – below relative to both control groups.The physiological calving courses with different concentration of Zn (61.45 ± 1.34 μmol/l), Cu (0.73 ± 0.1 μmol/l) and Mn (213.3 ± 2.7 μmol/l) in carunculs of the placenta maternal part. The second stage of calving of all cows was within the physiological framework without rendering assistance, ranged from 57 to 85 minutes and amounted 67.5 minutes to an average.Depending on the duration of the third stage of calving we determined the relationship of the studied mineral substances between their levels in blood and maternal parts of the placenta. On the pathology of the third stage of calving in cows blood in the first stage the level of Zinc amounted to 134.15 µg%, Cuprum –90.8 µg %, Mangan –to 3.7 µg%. Separation of the placenta lasted longer for 20–22 hours.