Dynamics of clinical symptoms of damage to the shin of newborn Ukraini-an red dairy breed under industrial exploitation conditions

The analysis of the data 5-year monitoring visual (in points) examination firstborns (n = 1113) newly created Ukrainian red milk (URD) breed for assessment clinical condition lateral surface lower leg under conditions unharnessed keeping on rubber mats is presented. An increase in number cows with damage to epithelium skin (“gateway infection”) along chronological axis (2018–22), namely: from 33.88 ± 3.97 % 55.95 5.94 (P < 0.01). Pronounced inflammatory phenomena (purulent-necrotic) area tibial joint increased by 15.05 0.01), and symptoms severe all tissues signs lameness 0.96 4.11 0.95 0.05). dynamics symptom complex shin pathologies showed a positive correlative relationship growth productivity 2018, average yield 305 days lactation was 6999.13 kg, 2020 – 8947.25 kg). Still, trend increasing firstborns' shins remained even after drop 2021 7995.00 kilograms milk. results study tendency decrease adaptive properties young URD breed, which probably can be connected high degree Holsteinization population during negative microevolutionary consequences rapid transformation genotype were manifested, require further research.