Obstetric end gynecologic pathology in fresh cows of simmental breed under various ages of beginning reproduction
The article represents the evaluation of heifers' functional state at the final stage of gestation under various ages of beginning reproduction (14 - 15, 16 - 18, 20 and more months). The differences in metabolic rates, endocrine status, functional activity of cardiovascular and respiratory systems, vaginal microbiota were detected. The complications of labor and postpartum period in heifers inseminated at the age of 14 - 15 and 20 months were registered 1,9 - 2,4 times more often than in animals inseminated at the age of 16 - 18 months.