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dc.contributor.authorKerek, Ádám
dc.contributor.authorRomán, István László
dc.contributor.authorSzabó, Ábel
dc.contributor.authorPapp, Márton
dc.contributor.authorBányai, Krisztián
dc.contributor.authorKardos, Gábor
dc.contributor.authorKaszab, Eszter
dc.contributor.authorBali, Krisztina
dc.contributor.authorMakrai, László
dc.contributor.authorJerzsele, Ákos
dc.date.accessioned2024-09-23T07:01:44Z
dc.date.available2024-09-23T07:01:44Z
dc.date.issued2024
dc.identifier.citationKerek Á, Román IL, Szabó Á, Papp M, Bányai K, Kardos G, Kaszab E, Bali K, Makrai L, Jerzsele Á. Comprehensive Metagenomic Analysis of Veterinary Probiotics in Broiler Chickens. Animals (Basel). 2024 Jun 29;14(13):1927. doi: 10.3390/ani14131927en_US
dc.identifier.urihttp://hdl.handle.net/10832/4070
dc.description.abstractProbiotics are widely used in broiler chickens to support the gut microbiome, gut health, and to reduce the amount of antibiotics used. Despite their benefits, there is concern over their ability to carry and spread antimicrobial resistance genes (ARGs), posing a significant public health risk. This study utilized next-generation sequencing to investigate ARGs in probiotics approved for poultry, focusing on their potential to be transferred via mobile genetic elements such as plasmids and phages. We examined the gut microbiome and resistome changes in 60 broiler chickens over their rearing period, correlating these changes with different probiotic treatments. Specific resistance mechanisms against critically important antibiotics were identified, including genes related to fluoroquinolone resistance and peptide antibiotic resistance. We also found genes with significant relevance to public health (aadK, AAC(6')-Ii) and multiple drug-resistance genes (vmlR, ykkC, ykkD, msrC, clbA, eatAv). Only one phage-encoded gene (dfrA43) was detected, with no evidence of plasmid or mobile genetic element transmission. Additionally, metagenomic analysis of fecal samples showed no significant changes corresponding to time or diet across groups. Our findings highlight the potential risks associated with the use of probiotics in poultry, particularly regarding the carriage of ARGs. It is crucial to conduct further research into the molecular genetics of probiotics to develop strategies that mitigate the risk of resistance gene transfer in agriculture, ensuring the safe and effective use of probiotics in animal husbandry.en_US
dc.language.isoenen_US
dc.titleComprehensive Metagenomic Analysis of Veterinary Probiotics in Broiler Chickensen_US
dc.typeArticleen_US
dc.identifier.doi10.3390/ani14131927


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