Distribution, forms of clinical manifestation and features of postpartum metritis in high yielding cows of various breeds

Purpose: to study the forms of clinical manifestation and features of the course of postpartum metritis of inflammatory diseases of the uterus in highly productive cows of different breeds with free-stall and traditional technologies of their operation. The novelty of the work lies in the fact that for the first time the distribution and forms of clinical manifestations of postpartum metritis in cows of different breeds were studied under free-stall and traditional housing technologies.

Materials and methods. The degree of distribution, forms of clinical manifestation and features of the course of postpartum metritis in highly productive cows of different breeds (n = 5345) were studied using traditional and free-stall technologies of their operation. To study the above indicators, anamnestic and veterinary data were used. Clinical and obstetric examination was carried out using generally accepted methods: transrectal palpation and ultrasound sonography, in accordance with the “Methodological manual for the prevention of infertility in highly productive dairy cattle”.

Results. As a result of the studies, it was found that obstetric pathology is registered on average in 71.3% of new-born animals. The most frequently affected animals were the Holstein breed with an annual milk yield of 7500-8500 kg. They were diagnosed with postpartum metritis in 78.0-86.4 % of cases of the number of calvings. In cows of the Simmental breed of domestic selection with tether housing technology and an annual milk yield of 4000 to 5300 kg, obstetric pathology was recorded much less frequently, in the range of 59.3-65.1%. In highly productive Holstein cows, severe forms of the inflammatory process most often developed: purulent-fibrinous - in 12.4 %, purulent-necrotic - in 13.2 %, gangrenous - in 1.1 %, postpartum sepsis - in 0.8 % of cases , whereas it was not diagnosed in animals with traditional exploitation technology. The more frequent manifestation of severe forms of this disease in highly productive animals may be associated with a decrease in the general nonspecific resistance of their body. In 65.7%, postpartum metritis occurred in an acute form, regardless of the breed and conditions of detention.

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