Influence of Dry Microbial Composition Based on Lactobacilli Strains on the Physiological and Microbiological Status of Romanian Pheasants

Luneva, Albina Vladimirovna and Lysenko, Yury Andreevich and Marchenko, Evgeny Yuryevich (2026) Influence of Dry Microbial Composition Based on Lactobacilli Strains on the Physiological and Microbiological Status of Romanian Pheasants. Online Journal of Animal and Feed Research. 145 - 151. ISSN 22287701

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Abstract

This study presents the results of evaluating the effects of a dry microbial composition based on lactobacilli strains (Loigolactobacillus coryniformis and Lactobacillus johnsonii), isolated from the intestinal tract of pheasants, on productivity, physiological status, and gut microbiocenosis of Romanian pheasants. The experiment was conducted on 140 birds divided into four groups: one control group and three experimental groups receiving the microbial composition at inclusion levels of 0.5�1.5 of the feed mixture. The trial duration was 91 days. Survival rate, body weight dynamics, feed intake, hematological and biochemical blood parameters were assessed, along with bacteriological analysis of the cecal contents. The results demonstrated that supplementation with the microbial composition at a dose of 1.0 yielded the most pronounced effects, including an increase in survival rate up to 100, a statistically significant increase in body weight by 7.2, and a reduction in feed conversion ratio by 4.2 compared to the control group. Hematological and biochemical analyses revealed no signs of toxicity or adverse effects of the microbial additive on the experimental birds. Microbiological analysis of the cecal chyme showed that administration of the microbial composition induced a restructuring of the gut microbiome, characterized by an increase in beneficial microbiota, namely Lactobacillus spp. (1.1�2.9-fold) and Bifidobacterium spp. (1.4�3.6-fold), accompanied by a reduction in opportunistic microorganisms. The study shows the efficacy of the developed dry microbial composition in Romanian pheasant production, with the optimal effect, at a dosage of 1.0 of the compound feed. © 2026, The Author(s) Open Access: This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit https://creativecommons.org/licenses/by/4.0/.

Item Type:	Article
Keywords:	Body weight; Dry microbial composition; Feed conversion ratio; Gut microbiota; Lactobacillus
Subjects:	S Agriculture > SF Animal culture
Divisions:	Online Journal of Animal and Feed Research (OJAFR)
Page Range:	145 - 151
Journal or Publication Title:	Online Journal of Animal and Feed Research
Journal Index:	Scopus
Volume:	16
Number:	3
Publisher:	Scienceline Publications, Ltd
Identification Number:	https://doi.org/10.51227/ojafr.2026.18
ISSN:	22287701
Depositing User:	Dr. Saeid Chekani-Azar
URI:	https://eprints.science-line.com/id/eprint/1777

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