Assessment of the effect of phytobiotic drugs Salviae folia, Scutellaria baicalensis, Origanum vulgare on metabolic processes in the rumen model

Relevance. On the processes of fermentation in the rumen of ruminants depends, how much final metabolites and their derivatives will be formed, which are necessary for the full development of the body, thehigh level of productivity, those processes also affect the level of formation of endogenous substances, in particular greenhouse gas emissions. These facts lead us to the search for new feed products that improve the metabolic processes in the rumen and the digestive system as a wholePhytochemicals can serve as an alternativeto traditional feed additives. The purpose of the article was to study the effect of Salviae folia, Scutellaria baicalensis, Origanum vulgare on the formation of methane, the synthesis of volatile fatty acids and nitrogen, as the main indicators of the enzymatic activity of the rumen.
Methods. The object of the study was the rumen fluid obtained from bulls of the Kazakh white-headed breed, aged 9–10 months, with an average weight of 225–230 kg (n = 4) with a chronic fistula of the rumen. For the study, a microration was prepared, including 70% of roughage and 30% of concentrated feed as a substrate, and nine prototypes were formed: Salviae folia — 0.8; 1.6; 2.4 g/kg of dry matter (DM), Scutellaria baicalensis — 0.15; 0.2; 0.3 g/kg ofDM, Origanum vulgare — 0.2; 0.3; 0.6 g/kg of DMof ration. The studies were carried out in vitro using the “ANKOM DaisyII” incubator and a specialized technique.
Results. It was found that with the use of phytosubstances Salviae folia and Scutellaria baicalensis, more acetic and propionic acids were formed, and with the use of Origanum vulgare in various dosages there was a shift towards formation ofpropionic and valeric acids. The formation of a larger amount of microbial protein has been reliably established with the use of Salviae folia, Scutellaria baicalensis, Origanum vulgare in various dosages. Methanogenesis decreased to a greater extent with the use of higher dosages of phytochemicals, regardless of the source.

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