Kinetics of the process of extruding compound feed for non-productive animals
https://doi.org/10.20914/2310-1202-2026-2-
Abstract
The relevance of this article is due to the fact that there are 75.5 million cats and dogs in Russian households. The pet population has increased by 35% over the past seven years. The share of industrially produced complete pet food has increased from 81% to 86% among cat owners and from 53% to 60% among dog owners over three years. However, dependence on imported components, rising raw material costs, and capacity shortages are hindering further expansion of compound feed production for non-productive animals. Therefore, there is an urgent need to further improve the technology and equipment for dog and cat food production and to transition to domestic components as part of the import substitution program. An assessment of the grain particle size distribution revealed a significant change in the quality of the finished extruded product: a decrease in particle size from 12 mm to 2 mm led to increased starch digestibility. The rational particle size of crushed grains was revealed to be about 3.0•10-3 m. Eight male and eight female Beagles aged 12 to 14 months were involved in the experiment; experimental and control groups of eight animals each were formed. Heat and moisture treatment (steaming) of grain affects the carbohydrate complex of grain, increasing the content of easily soluble carbohydrates and improving the digestibility of feed by animals. Rational extrusion modes were revealed, which were: for corn Wн = 12.8 %, 393-413 K, the degree of dextrinization and starch digestibility was 50-60 % and 100-120 mg/g; for grain mixture Wн = 12.7 %: 393-413 K, the degree of dextrinization and starch digestibility was 35 % and 80 mg/g; for wheat Wн = 12.3 % and 423-428 K, the degree of dextrinization and starch digestibility was 21-23 % and 60 mg/g.
About the Authors
I. A. SapelkinRussian Federation
graduate student, technology of fats, processes and equipment for chemical and food production department, Revolution Av., 19 Voronezh, 394036, Russia
A. N. Ostrikov
Dr. Sci. (Engin.), professor, technology of fats, processes and equipment for chemical and food production department, Revolution Av., 19 Voronezh, 394036, Russia
L. N. Frolova
Doc. Sci. (Engin.), professor, food production machines and apparatuses department, Revolution Av., 19 Voronezh, 394036, Russia
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21.
Review
For citations:
Sapelkin I.A., Ostrikov A.N., Frolova L.N. Kinetics of the process of extruding compound feed for non-productive animals. Proceedings of the Voronezh State University of Engineering Technologies. 2026;88(2):76-84. (In Russ.) https://doi.org/10.20914/2310-1202-2026-2-
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