EFFICIENCY OF USING IN FEEDING CALVES VETCH-OAT SILAGE PREPARED WITH PROBIOTICS

  • N. M. Fedak Institute of Agriculture of the Carpathian region of NAAS, 5, Grushevskogo str., Obroshyno village, Pustomyty district, Lviv region, 81115, Ukraine
  • S. P. Chumachenko Institute of Agriculture of the Carpathian region of NAAS, 5, Grushevskogo str., Obroshyno village, Pustomyty district, Lviv region, 81115, Ukraine
  • I. V. Dushara Institute of Agriculture of the Carpathian region of NAAS, 5, Grushevskogo str., Obroshyno village, Pustomyty district, Lviv region, 81115, Ukraine
Keywords: SILAGE, PROBIOTIC PREPARATIONS, CHEMICAL COMPOSITION, CALVES FATTENING, INTERIOR PERFORMANCE, LIVE WEIGHT INCREASE.

Abstract

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.

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.

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.

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.

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.

Established tendency to increase the level of red blood cells and hemoglobin content of calves in the experimental group.

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.

Average daily live weight increase of calves in experimental group were 703 g, its 4.2% higher than in controls (675 g).

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Published
2021-03-29
How to Cite
Fedak, N. M., Chumachenko, S. P., & Dushara, I. V. (2021). EFFICIENCY OF USING IN FEEDING CALVES VETCH-OAT SILAGE PREPARED WITH PROBIOTICS. Scientific and Technical Bulletin оf State Scientific Research Control Institute of Veterinary Medical Products and Fodder Additives аnd Institute of Animal Biology, 22(1), 236-242. https://doi.org/10.36359/scivp.2021-22-1.29