Abstract
Fermentation processes in the rumen of ruminants determine how much final metabolites and their derivatives will be formed, which are necessary for the full development of the organism, the level of productivity, and also affect the level of formation of endogenous substances, namely, greenhouse gas emissions. These criteria lead us to the search for new feed products that improve the metabolic processes of the rumen and the digestive system as a whole, so phyto-substances can serve as an alternative. The article presents the results of in vitro study of the influence of Salviae folia, Scutellaria baicalensis, Oríganum vulgáre on formation of methane, synthesis of volatile fatty acids and nitrogen, as the main indicator parameters of the enzymatic activity of the rumen of ruminants. It was found that when using phyto- substances: Salviae folia and Scutellaria baicalensis, more acetic and propionic acid was formed, Oríganum vulgare in various dosages shifted towards propionic and valeric acid. Formation of a larger amount of microbial protein (P≤0.05) with use of Salviae folia, Scutellaria baicalensis, Oríganum vulgáre in various dosages was established. Methane production decreased with use of Oríganum vulgáre.
Highlights
Fermentation processes in the rumen of ruminants determines how much final metabolites and their derivatives will be formed, which are necessary for full development of the body, the level of productivity, and affect the level of formation of endogenous substances, namely, greenhouse gas emissions.Use of phyto-substances in ruminant feeding can regulate enzymatic processes in the rumen [1,2]
The concentration of volatile fatty acids using Scutellaria baicalensis was lower for all dosages, except for caproic acid, its content was significantly different from the others and was 61.5 % higher than that of Salviae folia and 42.3 % of Oríganum vulgáre
The content of propionic acid was higher by 7.7 %, butyric acid — by 2.7 %, and valeric acid — by 42.5 % in comparison with Salviae folia
Summary
Use of phyto-substances in ruminant feeding can regulate enzymatic processes in the rumen [1,2]. It is known that feeding of phytobiotics or preparations based on them to cattle promotes better feed conversion, improves nitrogen metabolism, namely, formation of microbial protein, synthesis of volatile fatty acids and the general state of the animal's body [4]. A wide range of properties of phyto-substances opens up a wide range of possibilities for studying their effect on metabolism in the rumen of ruminants.
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