N. V. Gaponov
All-Russian Lupine Scientific Research Institute – Branch of Federal Williams Research Center of Forage Production & Agroecology, Michurinskiy settlement, Bryansk region, Russia
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Volume 26 No. 4
Date of paper submission: 04.02.2025, date of review: 07.04.2025, date of acceptance: 15.08.2025.
Published: 04/30/2026
Abstract. The purpose is to study the biochemical and amino acid composition of the main legumes in comparison with white lupine and high-protein concentrates based on lupine, as well as to develop a technology for inhibiting oxidative processes in feed. Scientific novelty. The optimal dose of the antioxidant “Agidol” has been developed, which is 250 g/ton. The most preferred methods of feed processing that reduce the level of oxidized triglycerides have been identified. Methods. The chemical composition of concentrated feed produced using various technologies, including granulation and extrusion, was studied by biochemical methods. Special attention was paid to the basic zootechnical parameters, as well as the amino acid composition and vitamins. Results. It was found that the crude protein content in white lupine grain is higher compared to other legumes. Lupine is inferior to soy in terms of fat and linoleic acid content in seeds, but surpasses other legumes in many biochemical parameters. In the granulate and extrudate, the content of dry matter, crude fat, calcium and phosphorus increases compared to the grain of white lupine. The crude fat content in the ESF is significant: for granular feed – 11.68 %, for extruded – 14.21 %. The results of using the antioxidant “Agidol” in the composition of manufactured feeds and its effect on their shelf life are described. The values of HCG (acid-catalytic fat content) of the extruded feed were within the normal range for both control and experimental samples with “Agidol” until the end of the shelf life. At the beginning of the experiment, the lipid oxidation indices were almost equal: 5.0 mg/g KOH (control) and 4.75 mg/g KOH (prototype). However, by the end of the fourth month, the difference between the control and the antioxidant option was more than 20 %. In granular feeds, the indicators were higher: at the beginning, the control values were 10.36 mg/g KOH (control) versus 10.19 mg/g KOH for samples with “Agidol”, and by the end of the shelf life, the difference was already 20.49 and 14.43 mg/g KOH, respectively. The difference between the feed without the antioxidant and with it reached 30 %.
Keywords: white lupine, crude protein, amino acid composition, acid number of fat
For citation: Gaponov N. V. Biochemical parameters of high-protein concentrates from white lupine and methods of inhibition of oxidative processes in feed. Agrarian Bulletin of the Urals. 2026; 26 (04): 655‒663. https://doi.org/10.32417/1997-4868-2026-26-04-655-663 (In Russ.)
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