Аграрная наука Евро-Северо-Востока (Apr 2022)
The use of Phytoadditive in lactating cows
Abstract
The subject for the research was Phytoadditive containing extracts from herbs: Rhaponticum carthamoides, Serratula coronata, Filipendula ulmaria. There has been studied the effect of Phytoadditive on biochemical parameters of blood (total protein, albumins, aminotransferases, urea, total cholesterol, reserve alkalinity, calcium), indicators of milk fat, protein and average daily milk yield of lactating cows at the age of 3 years, which were divided into experimental (Phytoadditive + basic diet) and control (basic diet only) groups of 10 animals per group. Phytoadditive in powder form was administered individually to the diet of animals of the experimental group daily, once at a dose of 10 grams per head per day during 90 days. Analysis of Phytoadditive for the presence of biologically active substances showed that the major compounds in it are ecdysteroids (mainly hydroxyecdysone) and flavonoids (rutin) in a total concentration of 13.5 g/kg. At the end of the experiment in cows of the experimental group, in comparison with the initial indicators, significantly (p < 0.05) increased the amount of albumin by 16.7 % (up to 45.3±2.4 g/l), calcium by 21.7 % (2.3±0.01-2.8±0.02 mmol/l). Other studied markers of the biochemical status did not change significantly (p> 0.05) and after the final blood test they were: aminotransferases (AST − 30.1±1.2 U/l, ALT − 35.0±2.8 U/l), urea (5.9±0.1 mmol / l), reserve alkalinity (20.2±2.6 vol.% CO2), cholesterol (2.8±0.1 mmol/l). All studied blood parameters did not go beyond the reference values throughout the experiment, which indicated the absence of any negative properties of Phytoadditive. At the end of the experiment, the milk indicators of cows in the experimental group had the following values: milk yield (19±0.2 kg), fat (4.3±0.4 %), protein (3.3±0.1 %), which exceeded the result in control by 5.5 %; 0.1 and 0.2 %, and in comparison with the beginning of the experiment by 18.7 %, 0.6 and 0.2 %, respectively. Thus, as the result of use of Phytoadditives in cows during lactation, a positive trend was noted in terms of its effect on milk yield, milk quality and the absence of any negative effect on the studied blood parameters.
Keywords
