N. V. Gaponov1, N. P. Buryakov2 , A. A. Menkova3
1 All-Russian Lupine Scientific Research Institute – branch of the Federal Williams Research Center of Forage Production and Agroecology, Michurinskiy settlement, Bryansk region, Russia
2 Russian State Agrarian University – Moscow Timiryazev Agricultural Academy, Moscow, Russia
3 Bryansk State Agrarian University, Kokino village, Bryansk region, Russia
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Volume 25 No. 10
Date of paper submission: 10.08.2025, date of review: 10.09.2025, date of acceptance: 12.09.2025
Published: 10/31/2025
Abstract. The purpose is to study the effect of the protein obtained from acrid on key biochemical parameters of blood, daily nitrogen balance and the degree of absorption of nutrients, especially chitin, in the body of primates. Methods. The research is based on physiological and biochemical methods. Scientific novelty. This study examines the relevance of using entomoproducts (Locusta migratoria) in feeding non-human rhesus monkeys (Macaca mulatta) and Javanese macaques (Macaca fascicularis), which are used as biological models. Results. The results show that the addition of 16 % of entomoproducts to the diet made it possible to partially replace soy meal (by 6 %) and replace fish meal (by 10 %). Physiological studies have revealed a 12.11 % better digestibility of chitin in Javanese macaques compared to rhesus macaques. The use of entoprotein in the diet improved the absorption of crude protein in rhesus monkeys by 2.04 %, and in Javanese macaques by 8.87 % compared with the control groups. The coefficients of fiber digestibility also increased in the experimental groups: in rhesus monkeys – by 2.45 %, in Javanese macaques – by 4.89 %. The digestibility of crude fat and crude ash was higher in the diet with entomological products: in rhesus monkeys by 4.21 % and 3.96 %, and in Javanese macaques – by 8.15 % and 8.60 %, respectively. There was also an improvement in the absorption of calcium (Ca) and phosphorus (P) in the experimental groups: in rhesus monkeys – by 5.94 % and 5.09 %, and in Javanese macaques – by 6.33 % and 4.22 %. Entoprotein contributed to a more efficient use of nitrogen in the body of rhesus monkeys (by 2.16 % of the ingested nitrogen and 1.81 % of the digested nitrogen) and Javanese macaques (by 2.75 % and 2.24 %, respectively). In the experimental groups, there was a slightly increased activity of the biomarkers ALT, ALT, LDH and ALP, but the biochemical parameters of the blood corresponded to the reference values, which confirms their reliability. A comparative analysis of interspecific differences in nutrient absorption and nitrogen balance revealed certain features in macaques, Macaca mulatta and Macaca fascicularis, which should be taken into account when planning experiments and developing feeding rations.
Keywords: acrides, protein, digestibility, chitin, biochemistry, amino acids, adsorption, conversion, retention
Acknowledgements. The research work was carried out as part of the implementation of the Priority 2030 grant.
For citation: Gaponov N. V., Buryakov N. P., Menkova A. A. Metabolism of diets based on entomoproducts from locusts in the body of primates of the species Macaca mulatta and Macaca fascicularis. Agrarian Bulletin of the Urals. 2025; 25 (10): 1599‒1614. https://doi.org/10.32417/1997-4868-2025-25-10-1599-1614 (In Russ.)
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