Birgel E H, Grunert E, Soares J A
Klinik für Geburtshilfe und Gynäkologie des Rindes (im Richard-Götze-Haus), Tierärztlichen Hochschule Hannover.
Dtsch Tierarztl Wochenschr. 1994 Sep;101(9):355-9.
To evaluate changes in the externally recognizable indications of parturition, the body temperature and progesteroneprofile were examined in 9 Holstein-Friesian heifers and 14 Holstein-Friesian cows in the preparatory phase of parturition. A special external obstetric examination was performed on these animals in the last 263 hours of pregnancy. Furthermore, the vaginal and rectal temperature was measured, and blood samples were taken. Of the blood samples the plasma progesterone concentration was determined. The time of birth could be predicted to be in the next 22 hours on the basis of the relaxation of the broad pelvic ligaments in 52.5% of the cases. A prediction was possible in 43.5% of the cases on the basis of the drop in temperature, and in 91.3% of the animals using the reduction in progesterone levels. Considering the clinical signs of parturition "relaxation of the pelvic ligaments" and a "decrease in temperature", predicting the time of parturition was possible in 65.2% of the animals. In 8.7% of the cases, in which no reduction in the progesterone level below 1.5 ng/ml blood plasma could be seen, the time of delivery could be determined by considering the relaxation of the broad ligaments and the reduction in temperature. A prediction of the time of parturition to be in the next 22 hours was possible for all animals the indicators of parturition.
为评估分娩外在可识别迹象的变化，在9头荷斯坦 - 弗里生青年母牛和14头荷斯坦 - 弗里生奶牛的分娩准备阶段，对其体温和孕酮水平进行了检查。在怀孕的最后263小时对这些动物进行了特殊的外部产科检查。此外，测量了阴道和直肠温度，并采集了血样。测定血样中的血浆孕酮浓度。在52.5%的病例中，根据阔韧带松弛情况可预测分娩时间在接下来的22小时内。在43.5%的病例中，根据体温下降情况可以进行预测，而在91.3%的动物中，利用孕酮水平降低情况可以进行预测。综合考虑分娩的临床体征“阔韧带松弛”和“体温下降”，65.2%的动物可以预测分娩时间。在8.7%的病例中，血浆孕酮水平未降至1.5 ng/ml以下，通过考虑阔韧带松弛和体温下降情况可以确定分娩时间。对于所有动物，根据分娩指标都有可能预测分娩时间在接下来的22小时内。
