Hematological parameters of cows with different schemes of using the dietary supplement Lamarin Saldonum

The results of the research conducted to establish the effect of different schemes of Lamarin Saldonum bio supplement application on the organism of high-yielding cows during days in milk are presented. Scientific and economic experience was carried out on the basis of a breeding farm located in the Kotelnichsky district of the Kirov region. For the experiment, three experimental groups of cows ( n = 10) receiving Lamarin Saldonum supplement at a dose of 0.4 g/kg live weight per day for 60 days were formed. In group 1 (scheme 1) feeding of the supplement was started 30 days before the expected calving date, in group 2 (scheme 2) – 60 days, in group 3 (scheme 3) – on the day of calving. Morphological and biochemical indices of their blood were used to evaluate the effect of different schemes of phyto supplement application on the organism of the animals. Blood sampling was performed twice: 30 and 60 days after the calving. It was found in the course of the research that the most optimal way to preserve the health of cows during the days in milk is to start feeding the studied supplement 30 days before the expected calving (scheme 1). This scheme of application has a favorable effect on the organism of the animals during days in milk, as evidenced by a higher hemoglobin content compared to the 2nd experimental group (an excess of 13.81%, p < 0.05), a significantly higher level of total protein (by 7.92 and 16.62%), globulins (by 20.09 and 43.88%), glucose (by 70.06 and 86.84%), calcium (by 13.90 and 23.43%) in the first month of lactation in comparison with the 2nd and 3rd groups, decrease of urea (by 39.45 and 58.70%) and phosphorus (by 50.84 and 66.59%), as well as alanine aminotransferase (by 22.15%) in comparison with the 3rd group in the same period.