Preprint Article Version 1 Preserved in Portico This version is not peer-reviewed

Salmonella Characterization in Poultry Eggs Sold in Farms and Markets in Relation to Handling and Biosecurity Practices in Ogun State, Nigeria

Version 1 : Received: 2 May 2021 / Approved: 5 May 2021 / Online: 5 May 2021 (15:04:41 CEST)

How to cite: Agbaje, M.; Ayo-Ajayi, P.; Kehinde, O.; Omoshaba, E.; Dipeolu, M.; Fasina, F.O. Salmonella Characterization in Poultry Eggs Sold in Farms and Markets in Relation to Handling and Biosecurity Practices in Ogun State, Nigeria. Preprints 2021, 2021050069 (doi: 10.20944/preprints202105.0069.v1). Agbaje, M.; Ayo-Ajayi, P.; Kehinde, O.; Omoshaba, E.; Dipeolu, M.; Fasina, F.O. Salmonella Characterization in Poultry Eggs Sold in Farms and Markets in Relation to Handling and Biosecurity Practices in Ogun State, Nigeria. Preprints 2021, 2021050069 (doi: 10.20944/preprints202105.0069.v1).

Abstract

Salmonella remains one of the notable food-borne bacterial pathogens. It is associated with poultry and poultry products including eggs. This study investigated Salmonella distribution in eggshell and content, their antimicrobial resistance pattern, and the possible risk factors driving contamination in Ogun State, Nigeria. A total of 500 eggs (5 eggs pooled into one sample) were collected and culturally examined for the presence of Salmonella serovars. Isolates were further characterized biochemically using Microbact 20E (Oxoid) and Antimicrobial susceptibility determined by the Kirby-Bauer disk diffusion method. A total of 14 Salmonella isolates spread across 10 serovars were recovered from the 100 pooled egg samples; 10 (10%) from the market and 4 (4%) farms, 13(13%) eggshell, and 1(1%) egg content. All tested serovars were susceptible to ampicillin, chloramphenicol, florfenicol, and kanamycin. Resistance was mostly observed in sulfamethoxazole 8 (80%), followed by ciprofloxacin 5 (50%) and tetracycline 3 (30%). Sales of eggs in the market appears to be a strong factor encouraging contamination in addition to poor biosecurity and unhygienic handling of eggs on the farm.

Subject Areas

Antimicrobial Resistance; Biosecurity; Egg; Nigeria; Poultry; Salmonella

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