Morphological and biochemical blood parameters in cows with subclinical mastitis in the fresh period

The article presents data on the features of morphological and biochemical blood parameters of lactating cows with subclinical mastitis during the new calving period. The studies were carried out in the spring in the conditions of a livestock farm in the Amur region on Holstein cows (milk yield 5640.0±174.61 kg of milk per year). All cows were clinically healthy, 1-2 months after calving. Cows' milk was tested for mastitis after morning milking. We used the express diagnosticum “Masttest” on milk-control plates PMK-2. After it, 2 groups of animals were formed - control (healthy) group and experimental (subclinical mastitis) group. The conditions of housing, feeding and exploitation were identical in each group. Blood for morphological and biochemical studies was taken from the jugular vein in the morning. Heparin-stabilized blood was examined routinely using generally accepted methods. Biochemical blood parameters were determined in blood serum on a StatFax 1904+R photometer using Vital biochemical reagent kits. The studies have shown disturbances in protein metabolism in the experimental and control groups. The content of total protein exceeded the physiological norm by 19.4% and 15%, respectively, which is explained by the highly concentrated type of feeding. In the experimental group, the blood glucose level was critically low (0.7±0.04 mmol/l, relative to healthy cows r=0.212 (p function show_eabstract() { $('#eabstract1').hide(); $('#eabstract2').show(); $('#eabstract_expand').hide(); }