Vet Med - Czech, 2025, 70(12):442-451 | DOI: 10.17221/37/2025-VETMED

Impact of prebiotic supplementation on the zootechnical and health performance in broiler chickensOriginal Paper

M Mansouri1,2, N Hammami1,3, A Yahia1,3, K Saidani1, Z Boumahdi3, D Tarzaali3, N Mimoune3,4,5
1 Institute of Veterinary Sciences, SAAD Dahlab University Blida 1, Blida, Algeria
2 Laboratory of Protection and Valorization of Agrobiological Resources, Faculty of Natural Sciences and Life – Department of Biotechnology and Agroecology, SAAD Dahlab University Blida 1, Blida, Algeria
3 Biotechnologies Laboratory Related to Animal Reproduction (LBRA), Institute of Veterinary Sciences, SAAD Dahlab University Blida 1, Blida, Algeria
4 Biotechnologies Platform for Animal Medicine & Reproduction, SAAD Dahlab University Blida 1, Blida, Algeria
5 Animal Health & Production (SPA) Laboratory, Higher National Veterinary School (ENSV), Algiers, Algeria

This study aimed to evaluate the effectiveness of mannan-oligosaccharides (MOSs) in broiler chicken feed throughout the complete rearing cycle, focusing on zootechnical performance and lactic acid bacteria. Over a period of 49 days, a total of one thousand and eighty (1 080) day-old ISA 15 chicks were divided into two (control and experimental) groups of 540 subjects each (9 replicates of 60 chicks per treatment). They were fed the same basic diet, but only the experimental group received a yeast cell wall extract-based prebiotic (AGRIMOS®, France), administered continuously at a dose of 2 g/kg throughout the different rearing phases. Under our local conditions, the prebiotic supplementation resulted in a significant increase in body weight gain (P < 0.01), reaching 1 559.82 ± 41.47 g during the growth phase and 913.20 ± 72.58 g during the finishing phase. Moreover, a significant reduction in the feed conversion ratio was observed throughout the rearing cycle (P < 0.05). Across all segments of the analysed intestinal tract (duodenum, ileum, and caecum), the data showed that chickens supplemented with the prebiotic had a significantly higher number of lactic acid bacteria than the control group at the start, growth, and finishing phases (P < 0.01). Our findings demonstrated a clear impact of the prebiotic on the feed utilisation under our rearing conditions, which required further studies to elucidate the underlying mechanisms of action.

Keywords: chicken; lactic acid bacteria; mannan-oligosaccharide; prebiotic; zootechnical performance

Received: May 8, 2025; Revised: September 3, 2025; Accepted: September 4, 2025; Prepublished online: December 19, 2025; Published: December 31, 2025  Show citation

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Mansouri M, Hammami N, Yahia A, Saidani K, Boumahdi Z, Tarzaali D, Mimoune N. Impact of prebiotic supplementation on the zootechnical and health performance in broiler chickens. Vet Med - Czech. 2025;70(12):442-451. doi: 10.17221/37/2025-VETMED.
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