A retrospective study on the isolated strains of Salmonella in poultry


L Spalević
https://orcid.org/0000-0003-4981-5991
N Zdravkovic
https://orcid.org/0000-0002-3925-4409
J Zutić
https://orcid.org/0000-0003-2207-2040
D Vojinović
https://orcid.org/0000-0002-4890-3239
V Milićević
https://orcid.org/0000-0003-1181-6307
N Jezdimirović
https://orcid.org/0000-0003-1958-9487
J Kureljušić
https://orcid.org/0000-0002-9366-1857
O Radanović
https://orcid.org/0000-0002-5275-5582
Resumen

Poultry represent an important global reservoir of Salmonella. Poultry salmonellosis results in great economic losses, and some serovars also have zoonotic potential. Some poultry can be infected with Salmonella without showing clinical signs of the disease, but is, nevertheless, a significant source of spread of the infection. Clinical symptoms range from digestive problems (white diarrhea, malabsorption) to bacteremia and death. The aim of this study was to retrospectively show the presence of bacteria Salmonella enterica subspecies enterica of various serovars in poultry in the Belgrade epizootiological area in a period of six years (2014-2019). A total of 4580 samples were examined including: incubated eggs, dead chickens, broiler feces and laying hens with total of 207 positive samples. Salmonella was isolated by standard microbiological methods followed by serological typing. In the examined period, the prevalence of poultry salmonella was 4.52%. The highest number of examined samples was recorded in 2017 (879), and positive in 2018 (65), while the lowest prevalence was recorded during year 2016 with 7 positive samples. Of all isolated and serotyped Salmonella, the most commonly isolated serovar was S. Enteritidis (65.28%), followed by S. Infantis (21.30%), S. Mbandaka (6.02%), S. Senftenberg (3.24%), S. Typhimurium (1.85%), S. Agona (0.93%), S. Taksony (0.93%), and the least common is S. Tshiongwe (0.46%). The first report of serovars : S. Agona, S. Taksony and S. Tshiongwe have been during 2018. The highest number of positive specimens was found in laying hens faces (116 of 921 tested), broiler faces (73 of 1147), chickens carcasses (12 of 1443) and incubated eggs (6 of 1069). Complete eradication of Salmonella from production is a difficult goal because of the presence of a heterogeneous serovars pool and various sources of infection. Prevention is the best tool for controlling Salmonella: hygiene, biosecurity and where applicable - vaccination. It is a great responsibility of the poultry farmers to apply the existing standards and to improve the new ones.

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Biografía del autor/a
N Zdravkovic, Veterinary Scientific Institute of Serbia Belgrade

Bacteriology diagnostic laboratory

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Allerberger, F. (2012) Molecular typing in public health laboratories: from an academic indulgence to an infection control imperative. J Prev Med Public Health 45, 1-7.
Carrique Mas, J.J., Davies, R.H. (2008) Salmonella Enteritidis in commercial layer flocks in Europe: legislative background, on-farm sampling and main challenges. Rev. Bras. Cienc. Avic 10.
EFSA, E.F.S.A., European Centre for Disease Prevention and Control (2013) The European Union Summary Report on Trends and Sources of Zoonoses, Zoonotic Agents and Food-borne Outbreaks in 2011. EFSA Journal 11, 1-225.
EFSA, E.F.S.A.E.P.o.B.H. (2019) Salmonella control in poultry flocks and its public health impact. EFSA Journal 17.
Gole, V., Caraguel, C., Sexton, M., Fowler, C., Chousalkar, K. (2014) Shedding of Salmonella in single age caged commercial layer flock at an early stage of lay. Int J Food Microbiol 189, 61-66.
Hoszowski, A., Zajac, M., Lalak, A., Przemyk, P., Wasyl, D. (2016) Fifteen years of successful spread of Salmonella enterica serovar Mbandaka clone ST413 in Poland and its public health consequences. Ann Agric Environ Med 23, 237-241.
ISO, T.I.O.f.S. (2007) Microbiology of food and animal feeding stuffs-horizontal method for the detection of Salmonella spp. Amendment 1: Annex D: Detection of Salmonella spp. in animal faeces and in environmental samples from the primary production stage.
ISO, T.I.O.f.S. (2017) Microbiology of the food chain — Horizontal method for the detection, enumeration and serotyping of Salmonella — Part 1: Detection of Salmonella spp.
Iwabuchi, E., Maruyama, N., Hara, A., Nishimura, M., Muramatsu, M., Ochiai, T. (2010) Nationwide survey of Salmonella prevalence in environmental dust from layer farms in Japan 1993–2000. J Food Prot 73.
Maury, Y., Pulido-Landínez, M. 2017. Genotyping and antimicrobial resistance patterns of Salmonella sp isolated from a broiler chicken feed mills.
Mouttotou, N., Ahmad, S., Kamran, Z., Koutoulis, K.C., 2017. Prevalence, Risks and Antibiotic Resistance of Salmonella in Poultry Production Chain, In: Current Topics in Salmonella and Salmonellosis.
Official Gazette of RS No.36/18 (2018) Rulebook on determining measures for early detection, diagnosis, prevention of spread, control and eradication of poultry infection with certain salmonella serovars.
OIE, O.I.d.E. (2016) Terrestrial manual. In: 2.9.8 Salmonellosis.
OIE, O.I.d.E. (2018) Terrestrial manual. In: 3.9.8 Salmonellosis.
Pajić, M., Todorović, D., Velhner, M., Milanov, D., Polaček, V., Đurić, S., Stojanov, I. (2015) The epizootiological importance of Salmonella SPP. isolated in various aspect of poultry production in the sothern Bačka and Srem region. Arhiv veterinarske medicine 8, 67-76.
Pate, M., Mičunovič, J., Golob, M., Karine Vestby, L., Ocepek, M. (2019) Salmonella Infantis in Broiler Flocks in Slovenia: The Prevalence of Multidrug Resistant Strains with High Genetic Homogeneity and Low Biofilm-Forming Ability. Biomed Res Int. ID 4981463.
Wałga, T., Hudzik, G., Cieslik-Tarkota, R., 2010. Diseases induced by Salmonella Mbandaka in Silesian Province – new risk to public health, In: Proceedings of the Epidemiological threats for human health, Puławy, Poland.
Whiley, H., Ross, K. (2015) Salmonella and eggs. From production to plate. . International journal of environmental research and public health 12, 2543-2556.
Wiedemann, A., Virlogeux-Payant, I., Chausse, A., Schikora, A., Velge, P. (2015) Interactions of Salmonella with animals and plants. Front. Microbiol.
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