THE INDICATORS OF PROTEIN AND NITROGEN METABOLISM IN PIGS DURING PREGNANCY
Dynamic changes in protein and nitrogen metabolism are used as one of diagnostic criteria for a full-fledged metabolic status. These indicators are gomeoresis for animals and the first change under the action of environmental factors. The deviation from the standard indicators can lead to the predisposition to particular pathology of the entire organism. The aim of the research was to determine the parameters of protein and nitrogen metabolism in non-pregnant pigs, during and after pregnancy. The research was conducted on the collective-stud farm "Russia" of Novoaleksandrovsky district of Stavropol Region and in the conditions of the Scientific-Diagnostic and Therapeutic Veterinary Center of Stavropol State Agrarian University. The object of the study was the blood of large white pigs - non-pregnant sows, the first and second half of pregnancy and after the delivery of 10 individuals in each group. It was found that with the onset of pregnancy in pigs, the level of total protein in the blood serum significantly increased (by 10.5-11.8 %), and the amount of both albumins and globulins increased, and the ratio of albumins to globulins increased. During pregnancy, there was the accumulation of protein metabolism metabolites-urea (up to 7.31±0.21 mmol/l) and creatinine (136.60±2.10 mmol/l), the level of which stabilized after the delivery. The obtained data can be used as constant for pig farms in the Northern Caucasus when growing large white pigs at different gestation periods.