E. B. Tatlybaeva, A. G. Musin AVNutriSmart LLC, Orenburg, Russia
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Volume 26 No. 3
Date of paper submission: 13.11.2025, date of review: 25.12.2025, date of acceptance: 13.01.2026.
Published: 03/31/2026
Abstract. The article presents a comprehensive study on the effect of various methods for modifying the basal diet of quails on eggshell quality. The purpose of this research is to assess the impact of introducing benzoic acid in varying concentrations and steam treatment of feed on the eggshell quality. Methods. The subject of the study was Manchurian breed egg-laying quails. In the first stage of the experiment, the test groups were fed a diet with different levels of benzoic acid supplementation. In the second stage, the test groups consumed either thermally non-treated or thermally treated feed, with and without the addition of compensatory doses of fat-soluble vitamins (A, D3, E) to offset their thermally induced degradation. The following parameters were evaluated: egg weight, shell-to-egg weight ratio, shell strength, elastic deformation, shell thickness, and Haugh units. Scientific novelty. For the first time in Manchurian breed egg-laying quails, a comparative analysis of the influence of feed acidification and its thermal treatment on egg quality indicators and morphological characteristics has been conducted. Results. The use of benzoic acid as a feed acidifier at a concentration of 400–800 g/t has a positive effect on shell quality, increasing its strength and thickness, and reducing elastic deformation. A positive influence of the feed steam treatment process was also noted when additional compensatory doses of fat-soluble vitamins A, D3, E were introduced into the diet, and when cholecalciferol was replaced with calcidiol, as evidenced by the changing dynamics of quail eggshell quality indicators.
Keywords: thermal processing of feed, steam conditioning, benzoic acid, shell quality, quail farming, poultry, fatsoluble vitamins, calcidiol
For citation: Tatlybaeva E. B., Musin A. G. The effect of feed acidification and heat treatment on morphological parameters and eggshell quality of quail eggs. Agrarian Bulletin of the Urals. 2026; 26 (03): 507‒516. https://doi.org/10.32417/1997-4868-2026-26-03-507-516 (In Russ.)
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