@article{Fedak_Chumachenko_Dushara_2021, title={EFFICIENCY OF USING IN FEEDING CALVES VETCH-OAT SILAGE PREPARED WITH PROBIOTICS}, volume={22}, url={https://scivp-journal.com.ua/index.php/journal/article/view/171}, DOI={10.36359/scivp.2021-22-1.29}, abstractNote={<p>The results of the study of the effectiveness of new probiotic preparations based on strains of probiotic microorganisms in the preparation of silage from cereal-legume mixtures of annual forage crops with high humidity and their impact on the interior performance and productivity of fattening calves.</p> <p>in production conditions, two variants of vetch-oat silage were preserved, the control one was fermented with BPS-L leaven at a dose of 10 ml per tone, and the experimental one was preserved with probiotic preparation KT-L 18/1 at a dose of 8 ml per tone of green mass. Both preparations are domestically produced, created in the laboratory of probiotics of the Institute of Agriculture Microbiology and Agro-Industrial Manufacture of NAAS.</p> <p>A study of the chemical composition and nutritional value of silos showed that the addition of probiotic preparations BPS-L and KT-L 18/1 to the green mass by ensiling annual forage crops with high humidity (78-80%) contributes to the preservation of dry matter at 91-94, crude protein 90-93 and carotene 85-88%, provides the optimal level of lactic acid fermentation, accumulation of lactic acid at the level of 67-69%, acetic - 29-32% without accumulation butyric acid. Based on data on chemical composition, fermentation acid content and organoleptic evaluation, such silos were classified as quality class 1.</p> <p>Studies on animals (calves for fattening) lasted 140 days in the experimental farm "Obroshyne" Pustomyty district of Lviv region. The main diet of both groups consisted of cereal-legume hay, winter wheat straw, pulp and feed. Animals of the control group received an additional 15 kg of silage prepared with BPS-L, and experimental - 14.5 kg of silage with the KT-L 18/1.</p> <p>In the rumen fluid calves were fed silage harvested with drug KT-L 18/1 noted the increase in the concentration of nitrogen free amino acids and protein nitrogen in the background reduction of ammonia.</p> <p>Established tendency to increase the level of red blood cells and hemoglobin content of calves in the experimental group.</p> <p>Analysis of serum protein spectrum showed a significant increase in the level of albumin and γ-globulin fractions in animals that consumed silage prepared with the KT-L 18/1.</p> <p>Average daily live weight increase of calves in experimental group were 703 g, its 4.2% higher than in controls (675 g).</p&gt;}, number={1}, journal={Scientific and Technical Bulletin оf State Scientific Research Control Institute of Veterinary Medical Products and Fodder Additives аnd Institute of Animal Biology}, author={Fedak, N. M. and Chumachenko, S. P. and Dushara, I. V.}, year={2021}, month={Mar.}, pages={236-242} }