Bayarbat Ishvaanjil³, Buyanchimeg Baasanjargal², Gurbazar Damdinsuren¹, and Ulambayar Temuujin¹*

¹School of Animal Science and Biotechnology, Mongolian University of Life Sciences, Khan-Uul District-22, Zaisan, 17029, Ulaanbaatar, Mongolia ²School of Engineering and Technology, Mongolian University of Life Sciences, Khan-Uul District-22, Zaisan, 17029, Ulaanbaatar, Mongolia ³School of Applied Sciences, Mongolian University of Life Sciences, Khan-Uul District-22, Zaisan, 17029, Ulaanbaatar, Mongolia

*Corresponding Author: Ulambayar Temuujin, School of Animal Science and Biotechnology, Mongolian University of Life Sciences, Khan-Uul District-22, Zaisan, 17029, Ulaanbaatar, Mongolia.

Received: September 30, 2026; Published: October 29, 2026

Abstract

The utilization of livestock by-products in pet food production may improve resource efficiency while providing alternative animal-derived ingredients. This preliminary study characterized the proximate composition and selected mineral concentrations of hot-air-dried Mongolian horse liver and lung and summarized source-record data on experimental formulations, microbiological findings, feeding acceptance, and two-bowl preference. Liver and lung were dried at 50°C or 70°C for 24 h, using 5 kg per batch and three independently prepared batches per organ-temperature condition, then ground through an approximately 1 mm screen. A prototype containing 90% dried organ, 2.5% corn, 2.5% peas, and 5% oil was selected for further evaluation. Source-record crude protein concentrations were 32.01% in the liver-based formulation and 31.60% in the lung-based formulation. Total bacterial counts were reported as 3.0 × 10² and 2.0 × 10² CFU/g, respectively; Escherichia coli, molds/fungi, and Salmonella were reported as not detected in the tested samples. In a 10-dog feeding assessment, short-term intake was similar in magnitude between the test and commercial comparator foods. In a two-bowl assessment, the test food accounted for 60% of first-choice observations, while the descriptive intake ratio calculated from group mean intakes was 2.76. These values are reported from archived source records; replicate-level analytical data and complete raw datasets were unavailable for independent verification. Raw-material traceability, some drying and AAS instrument details, complete microbiological methods, the identity and composition of the comparator, and final-product processing and storage conditions were also incompletely documented. The reported composition does not provide a complete mass balance. The findings are therefore preliminary and descriptive and do not establish complete-diet adequacy, validated metabolizable energy, statistically significant preference, comprehensive microbiological safety, or shelf-life stability.

Keywords: Mongolian Horse; Horse Liver; Horse Lung; Animal By-Products; Experimental Dog-Food Formulation; Hot-Air Drying; Short-Term Acceptance; Microbiological Quality

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Citation

Citation: Ulambayar Temuujin., et al. “Nutritional Composition, Microbiological Findings, and Short-Term Acceptance of Experimental Dog-Food Formu- lations Containing Mongolian Horse Liver and Lung". Acta Scientific Veterinary Sciences 8.4 (2026): 03-11

Copyright

Copyright: © 2026 Ulambayar Temuujin., et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.