1
|
Yousefi Amin A, Oshaghi M, Habibi S, Bashashati M, Fallah Mehrabadi MH, Safavieh SS. Prevalence and antimicrobial susceptibility of Salmonella enteritidis and Salmonella typhimurium isolated from hen eggs and quail eggs in Karaj, Iran. Vet Med Sci 2024; 10:e1475. [PMID: 38739101 PMCID: PMC11090146 DOI: 10.1002/vms3.1475] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2023] [Revised: 04/02/2024] [Accepted: 04/21/2024] [Indexed: 05/14/2024] Open
Abstract
BACKGROUND AND AIM Different Salmonella serotypes are considered one of the most important food pathogens in the world. Poultry meat and eggs are the primary carriers of Salmonella in human populations. This study aimed to estimate the Salmonella enteritidis and Salmonella typhimurium contamination rates of retail hen and quail eggs in Karaj, Iran. Moreover, the antimicrobial resistance patterns of the strains were evaluated, and the efficiency of the standard culture method and multiplex polymerase chain reaction (m-PCR) were compared. MATERIALS AND METHODS In this descriptive cross-sectional study over 1 year (Jan-Dec 2022), 150 commercial and 150 backyard hen eggs and 300 commercial quail eggs, without cracks and fractures, were collected randomly from best selling groceries in Karaj city. All samples were examined for Salmonella contamination independently by standard culture and m-PCR approaches. A standard disc diffusion method was employed to assess the antimicrobial susceptibility of the strains against 18 antimicrobial agents. RESULTS Out of 300 examined eggs, 2 S. enteritidis strains were isolated from the shell of backyard hen eggs. The same serotype was also detected in the contents of one of these two eggs. One S. typhimurium was isolated from the shell of a commercial hen egg. Overall, the Salmonella contamination of the shell and contents was 1% and 0.3%, respectively. Salmonella was not isolated from the eggshells or the contents of the quail eggs. There was complete agreement between the results of m-PCR and the standard culture methods. Among the 18 tested antibiotics, the highest resistance was recorded for colistin (100%), followed by nalidixic acid (75%). CONCLUSION As most Salmonella spp. are associated with human food poisoning, continuous surveillance is required to effectively reduce the risk posed by contaminated poultry eggs. Furthermore, mandatory monitoring of antimicrobial use on Iranian poultry farms is recommended.
Collapse
Affiliation(s)
- Asghar Yousefi Amin
- Department of Medical Laboratory SciencesFaculty of Allied MedicineIran University of Medical SciencesTehranIran
| | - Mojgan Oshaghi
- Department of Medical Laboratory SciencesFaculty of Allied MedicineIran University of Medical SciencesTehranIran
| | - Sina Habibi
- Department of Hematology and Blood BankingFaculty of Allied MedicineIran University of Medical SciencesTehranIran
| | - Mohsen Bashashati
- Department of Avian Disease Research and DiagnosticsRazi Vaccine and Serum Research InstituteAgricultural Research Education and Extension Organization (AREEO)KarajIran
| | - Mohammad Hossein Fallah Mehrabadi
- Department of Avian Disease Research and DiagnosticsRazi Vaccine and Serum Research InstituteAgricultural Research Education and Extension Organization (AREEO)KarajIran
| | - Sedigheh Sadat Safavieh
- Department of Quality ControlRazi Vaccine and Serum Research InstituteAgricultural Research Education and Extension Organization (AREEO)KarajIran
| |
Collapse
|
2
|
Waktole H, Ayele Y, Ayalkibet Y, Teshome T, Muluneh T, Ayane S, Borena BM, Abayneh T, Deresse G, Asefa Z, Eguale T, Amenu K, Ashenafi H, Antonissen G. Prevalence, Molecular Detection, and Antimicrobial Resistance of Salmonella Isolates from Poultry Farms across Central Ethiopia: A Cross-Sectional Study in Urban and Peri-Urban Areas. Microorganisms 2024; 12:767. [PMID: 38674711 PMCID: PMC11051739 DOI: 10.3390/microorganisms12040767] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2024] [Revised: 04/07/2024] [Accepted: 04/09/2024] [Indexed: 04/28/2024] Open
Abstract
A cross-sectional study was conducted to assess the prevalence, molecular detection, and antimicrobial resistance of Salmonella isolates within 162 poultry farms in selected urban and peri-urban areas of central Ethiopia. A total of 1515 samples, including cloacal swabs (n = 763), fresh fecal droppings (n = 188), litter (n = 188), feed (n = 188), and water (n = 188), were bacteriologically tested. The molecular detection of some culture-positive isolates was performed via polymerase chain reaction (PCR) by targeting spy and sdfl genes for Salmonella Typhimurium and Salmonella Enteritidis, respectively. Risk factors for the occurrence of the bacterial isolates were assessed. Antimicrobial susceptibility testing of PCR-confirmed Salmonella isolates was conducted using 12 antibiotics. In this study, it was observed that 50.6% of the farms were positive for Salmonella. The overall sample-level prevalence of Salmonella was 14.4%. Among the analyzed risk factors, the type of production, breed, and sample type demonstrated a statistically significant association (p < 0.05) with the bacteriological prevalence of Salmonella. The PCR test disclosed that 45.5% (15/33) and 23.3% (10/43) of the isolates were positive for genes of Salmonella Typhimurium and Salmonella Enteritidis, respectively. The antimicrobial susceptibility test disclosed multi-drug resistance to ten of the tested antibiotics that belong to different classes. Substantial isolation of Salmonella Typhimurium and Salmonella Enteritidis in poultry and on poultry farms, along with the existence of multi-drug resistant isolates, poses an alarming risk of zoonotic and food safety issues. Hence, routine flock testing, farm surveillance, biosecurity intervention, stringent antimicrobial use regulations, and policy support for the sector are highly needed.
Collapse
Affiliation(s)
- Hika Waktole
- Department of Pathobiology, Pharmacology and Zoological Medicine, Faculty of Veterinary Medicine, Ghent University, 9820 Merelbeke, Belgium;
- Department of Microbiology, Immunology and Veterinary Public Health, College of Veterinary Medicine and Agriculture, Addis Ababa University, Bishoftu P.O. Box 34, Ethiopia; (Y.A.); (Y.A.); (K.A.)
| | - Yonas Ayele
- Department of Microbiology, Immunology and Veterinary Public Health, College of Veterinary Medicine and Agriculture, Addis Ababa University, Bishoftu P.O. Box 34, Ethiopia; (Y.A.); (Y.A.); (K.A.)
| | - Yamlaksira Ayalkibet
- Department of Microbiology, Immunology and Veterinary Public Health, College of Veterinary Medicine and Agriculture, Addis Ababa University, Bishoftu P.O. Box 34, Ethiopia; (Y.A.); (Y.A.); (K.A.)
| | - Tsedale Teshome
- Department of Clinical Studies, College of Veterinary Medicine and Agriculture, Addis Ababa University, Bishoftu P.O. Box 34, Ethiopia; (T.T.); (Z.A.)
| | - Tsedal Muluneh
- Department of Animal Production Studies, College of Veterinary Medicine and Agriculture, Addis Ababa University, Bishoftu P.O. Box 34, Ethiopia;
| | - Sisay Ayane
- Department of Veterinary Science, School of Veterinary Medicine, Ambo University, Ambo P.O. Box 19, Ethiopia; (S.A.); (B.M.B.)
| | - Bizunesh Mideksa Borena
- Department of Veterinary Science, School of Veterinary Medicine, Ambo University, Ambo P.O. Box 19, Ethiopia; (S.A.); (B.M.B.)
| | - Takele Abayneh
- National Veterinary Institute (NVI), Bishoftu P.O. Box 19, Ethiopia; (T.A.); (G.D.)
| | - Getaw Deresse
- National Veterinary Institute (NVI), Bishoftu P.O. Box 19, Ethiopia; (T.A.); (G.D.)
| | - Zerihun Asefa
- Department of Clinical Studies, College of Veterinary Medicine and Agriculture, Addis Ababa University, Bishoftu P.O. Box 34, Ethiopia; (T.T.); (Z.A.)
| | - Tadesse Eguale
- Aklilu Lemma Institute of Pathobiology, Addis Ababa University, Addis Ababa P.O. Box 1176, Ethiopia; (T.E.); (H.A.)
| | - Kebede Amenu
- Department of Microbiology, Immunology and Veterinary Public Health, College of Veterinary Medicine and Agriculture, Addis Ababa University, Bishoftu P.O. Box 34, Ethiopia; (Y.A.); (Y.A.); (K.A.)
- International Livestock Research Institute (ILRI), Addis Ababa P.O. Box 5689, Ethiopia
| | - Hagos Ashenafi
- Aklilu Lemma Institute of Pathobiology, Addis Ababa University, Addis Ababa P.O. Box 1176, Ethiopia; (T.E.); (H.A.)
| | - Gunther Antonissen
- Department of Pathobiology, Pharmacology and Zoological Medicine, Faculty of Veterinary Medicine, Ghent University, 9820 Merelbeke, Belgium;
| |
Collapse
|
3
|
Response to Questions Posed by the Food Safety and Inspection Service: Enhancing Salmonella Control in Poultry Products. J Food Prot 2024; 87:100168. [PMID: 37939849 DOI: 10.1016/j.jfp.2023.100168] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2023] [Revised: 09/19/2023] [Accepted: 09/22/2023] [Indexed: 11/10/2023]
|
4
|
Kim S, Kim JH, Kim S, Park JS, Cha BS, Lee ES, Han J, Shin J, Jang Y, Park KS. Loop-mediated isothermal amplification-based nucleic acid lateral flow assay for the specific and multiplex detection of genetic markers. Anal Chim Acta 2022; 1205:339781. [DOI: 10.1016/j.aca.2022.339781] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2022] [Revised: 03/01/2022] [Accepted: 03/26/2022] [Indexed: 12/20/2022]
|
5
|
Antimicrobial Resistance of Salmonella enteritidis and Salmonella typhimurium Isolated from Laying Hens, Table Eggs, and Humans with Respect to Antimicrobial Activity of Biosynthesized Silver Nanoparticles. Animals (Basel) 2021; 11:ani11123554. [PMID: 34944331 PMCID: PMC8698057 DOI: 10.3390/ani11123554] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2021] [Revised: 12/08/2021] [Accepted: 12/10/2021] [Indexed: 12/21/2022] Open
Abstract
Simple Summary Salmonella enterica are common foodborne pathogens that cause gastrointestinal signs in a wide range of unrelated host species including poultry and humans. The overuse of antibiotics as therapeutic agents and growth promoters in the poultry industry has led to the emergence of multidrug-resistant (MDR) microorganisms. Thus, there is a need to find alternatives to conventional antibiotics. Recently, the biosynthesized silver nanoparticles (AgNPs) have shown an excellent antimicrobial activity. In this study, we investigated the antibacterial, antivirulent, and antiresistant activities of the biosynthesized AgNPs on the MDR and virulent S. enteritidis and S. typhimurium isolated from laying hens, table eggs, and humans. The obtained results indicated that AgNPs have the potential to be effective antimicrobial agents against MDR S. enteritidis and S. typhimurium and could be recommended for use in laying hen farms. Abstract Salmonella enterica is one of the most common causes of foodborne illness worldwide. Contaminated poultry products, especially meat and eggs are the main sources of human salmonellosis. Thus, the aim of the present study was to determine prevalence, antimicrobial resistance profiles, virulence, and resistance genes of Salmonella Enteritidis (S. enteritidis) and Salmonella Typhimurium (S. Typhimurium) isolated from laying hens, table eggs, and humans, in Sharkia Governorate, Egypt. The antimicrobial activity of Biosynthesized Silver Nanoparticles (AgNPs) was also evaluated. Salmonella spp. were found in 19.3% of tested samples with laying hens having the highest isolation rate (33.1%). S. Enteritidis) (5.8%), and S. Typhimurium (2.8%) were the dominant serotypes. All isolates were ampicillin resistant (100%); however, none of the isolates were meropenem resistant. Multidrug-resistant (MDR) was detected in 83.8% of the isolates with a multiple antibiotic resistance index of 0.21 to 0.57. Most isolates (81.1%) had at least three virulence genes (sopB, stn, and hilA) and none of the isolates harbored the pefA gene; four resistance genes (blaTEM, tetA, nfsA, and nfsB) were detected in 56.8% of the examined isolates. The AgNPs biosynthesized by Aspergillus niveus exhibit an absorption peak at 420 nm with an average size of 27 nm. AgNPs had a minimum inhibitory concentration of 5 µg/mL against S. enteritidis and S. typhimurium isolates and a minimum bactericidal concentration of 6 and 8 µg/mL against S. enteritidis and S. typhimurium isolates, respectively. The bacterial growth and gene expression of S. enteritidis and S. typhimurium isolates treated with AgNPs were gradually decreased as storage time was increased. In conclusion, this study indicates that S. enteritidis and S. typhimurium isolated from laying hens, table eggs, and humans exhibits resistance to multiple antimicrobial classes. The biosynthesized AgNPs showed potential antimicrobial activity against MDR S. enteritidis and S. typhimurium isolates. However, studies to assess the antimicrobial effectiveness of the biosynthesized AgNPs in laying hen farms are warranted.
Collapse
|
6
|
Bahramianfard H, Derakhshandeh A, Naziri Z, Khaltabadi Farahani R. Prevalence, virulence factor and antimicrobial resistance analysis of Salmonella Enteritidis from poultry and egg samples in Iran. BMC Vet Res 2021; 17:196. [PMID: 34030671 PMCID: PMC8142639 DOI: 10.1186/s12917-021-02900-2] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2021] [Accepted: 05/06/2021] [Indexed: 11/16/2022] Open
Abstract
BACKGROUND Salmonella enterica serovar Enteritidis (S. Enteritidis) is one of the most common serovars, associated with human salmonellosis. The food-borne outbreak of this bacterium is mainly related to the consumption of contaminated poultry meat and poultry products, including eggs. Therefore, rapid and accurate detection, besides investigation of virulence characteristics and antimicrobial resistance profiles of S. Enteritidis in poultry and poultry egg samples is essential. A total of 3125 samples (2250 poultry and 875 poultry egg samples), sent to the administrative centers of veterinary microbiology laboratories in six provinces of Iran, were examined for Salmonella contamination, according to the ISO 6579 guideline. Next, duplex PCR was conducted on 250 presumptive Salmonella isolates to detect invA gene for identification of the genus Salmonella and sdf gene for identification of S. Enteritidis. Subsequently, the S. Enteritidis isolates were examined for detection of important virulence genes (pagC, cdtB, msgA, spaN, tolC, lpfC, and spvC) and determination of antibiotic resistance patterns against nalidixic acid, trimethoprim-sulfamethoxazole, cephalothin, ceftazidime, colistin sulfate, and kanamycin by the disk diffusion method. RESULTS Overall, 8.7 and 2.3% of poultry samples and 6.3 and 1.3% of eggs were contaminated with Salmonella species and S. Enteritidis, respectively. The invA and msgA genes (100%) and cdtB gene (6.3%) had the highest and the lowest prevalence rates in S. Enteritidis isolates. The spvC gene, which is mainly located on the Salmonella virulence plasmid, was detected in 50.8% of S. Enteritidis isolates. The S. Enteritidis isolates showed the highest and the lowest resistance to nalidixic acid (87.3%) and ceftazidime (11.1%), respectively. Unfortunately, 27.0% of S. Enteritidis isolates were multidrug-resistant (MDR). CONCLUSION The rate of contamination with Salmonella in the poultry and egg samples, besides the presence of antimicrobial resistant and MDR Salmonella isolates harboring the virulence genes in these samples, could significantly affect food safety and subsequently, human health. Therefore, continuous monitoring of animal-source foods, enhancement of poultry farm control measures, and limiting the use of antibiotics for prophylactic purposes in food producing animals, are essential for reducing the zoonotic risk of this foodborne pathogen for consumers and also choosing effective antibiotics for the treatment of salmonellosis.
Collapse
Affiliation(s)
- Hassan Bahramianfard
- Department of Pathobiology, School of Veterinary Medicine, Shiraz University, Shiraz, Iran
| | - Abdollah Derakhshandeh
- Department of Pathobiology, School of Veterinary Medicine, Shiraz University, Shiraz, Iran
| | - Zahra Naziri
- Department of Pathobiology, School of Veterinary Medicine, Shiraz University, Shiraz, Iran
| | - Reza Khaltabadi Farahani
- Department of Poultry Disease, National Reference Laboratories, Applied Studies and Diagnosis Center, Tehran, Iran
| |
Collapse
|
7
|
Ahmed MFE, Abd El-Wahab A, Kriewitz JP, Hankel J, Chuppava B, Ratert C, Taube V, Visscher C, Kamphues J. Mitigating the Spread and Translocation of Salmonella Enteritidis in Experimentally Infected Broilers under the Influence of Different Flooring Housing Systems and Feed Particle Sizes. Microorganisms 2021; 9:874. [PMID: 33919578 PMCID: PMC8073070 DOI: 10.3390/microorganisms9040874] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2021] [Revised: 04/14/2021] [Accepted: 04/15/2021] [Indexed: 11/16/2022] Open
Abstract
This study aimed to evaluate the influences of different flooring designs and feed particle sizes on the spread of Salmonella (S.) in broiler chickens. Birds (n = 480) were allocated to four different housing systems (fully littered with and without floor heating, partially and fully slatted flooring with sand bath) and two dietary treatments (finely and coarsely ground diets) in 24 boxes. Two broilers per box were experimentally infected with S. Enteritidis (8.00 log10 CFU/bird) at d 17. Salmonella prevalence in caecal contents and the liver was highest in broilers housed on fully slatted floor until d 36/37 (88.1% and 91.5%, respectively), and lowest in litter flooring (caecal content 64.4%) and litter flooring with floor heating (liver 61.7%). In turn, broilers on littered flooring expressed the lowest Salmonella counts in caecal content at d 36/37 (2.21 ± 1.75 log10 CFU/g), partial slatted flooring the highest (3.76 ± 1.46 log10 CFU/g). The mean Salmonella count in the caecal content was significantly lower for birds fed a coarsely ground diet (0.96 and 1.94 log10 CFU/g) than a finely ground diet (5.07 and 3.34 log10 CFU/g) at d 23 and d 36/37, respectively (p < 0.0001). Slatted flooring with a sand bath did not show advantages in terms of Salmonella reduction, whereas the coarsely ground diet markedly reduced the spread of Salmonella.
Collapse
Affiliation(s)
- Marwa F. E. Ahmed
- Hygiene and Zoonoses Department, Faculty of Veterinary Medicine, Mansoura University, Mansoura 35516, Egypt;
| | - Amr Abd El-Wahab
- Nutrition and Nutritional Deficiency Diseases Department, Faculty of Veterinary Medicine, Mansoura University, Mansoura 35516, Egypt;
- Institute for Animal Nutrition, University of Veterinary Medicine Hannover, Foundation, Bischofsholer Damm 15, D-30173 Hannover, Germany; (J.-P.K.); (J.H.); (B.C.); (C.R.); (J.K.)
| | - Jan-Philip Kriewitz
- Institute for Animal Nutrition, University of Veterinary Medicine Hannover, Foundation, Bischofsholer Damm 15, D-30173 Hannover, Germany; (J.-P.K.); (J.H.); (B.C.); (C.R.); (J.K.)
| | - Julia Hankel
- Institute for Animal Nutrition, University of Veterinary Medicine Hannover, Foundation, Bischofsholer Damm 15, D-30173 Hannover, Germany; (J.-P.K.); (J.H.); (B.C.); (C.R.); (J.K.)
| | - Bussarakam Chuppava
- Institute for Animal Nutrition, University of Veterinary Medicine Hannover, Foundation, Bischofsholer Damm 15, D-30173 Hannover, Germany; (J.-P.K.); (J.H.); (B.C.); (C.R.); (J.K.)
| | - Christine Ratert
- Institute for Animal Nutrition, University of Veterinary Medicine Hannover, Foundation, Bischofsholer Damm 15, D-30173 Hannover, Germany; (J.-P.K.); (J.H.); (B.C.); (C.R.); (J.K.)
| | - Venja Taube
- BEST 3 Geflügelernährung GmbH, D-27239 Twistringen, Germany;
| | - Christian Visscher
- Institute for Animal Nutrition, University of Veterinary Medicine Hannover, Foundation, Bischofsholer Damm 15, D-30173 Hannover, Germany; (J.-P.K.); (J.H.); (B.C.); (C.R.); (J.K.)
| | - Josef Kamphues
- Institute for Animal Nutrition, University of Veterinary Medicine Hannover, Foundation, Bischofsholer Damm 15, D-30173 Hannover, Germany; (J.-P.K.); (J.H.); (B.C.); (C.R.); (J.K.)
| |
Collapse
|
8
|
Gingerich E, Frana T, Logue CM, Smith DP, Pavlidis HO, Chaney WE. Effect of Feeding a Postbiotic Derived from Saccharomyces cerevisiae Fermentation as a Preharvest Food Safety Hurdle for Reducing Salmonella Enteritidis in the Ceca of Layer Pullets. J Food Prot 2021; 84:275-280. [PMID: 32977331 DOI: 10.4315/jfp-20-330] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2020] [Accepted: 09/21/2020] [Indexed: 12/27/2022]
Abstract
ABSTRACT Salmonella Enteritidis is responsible for a significant proportion of foodborne salmonellosis in the United States and continues to be attributable to table eggs despite increased federal oversight. Technologies, including feed additives, continue to be evaluated for preharvest application and their potential food safety benefits. Diamond V Original XPC, a Saccharomyces cerevisiae fermentation-based postbiotic (SCFP), was evaluated for its effectiveness in reducing Salmonella Enteritidis (SE) colonization in young layer pullets. A total of 40 day-old Hy-Line W-36 layer pullets were equally divided and randomly assigned to one of two dietary treatments, with SCFP or without SCFP (PCON), and orally gavaged on day 28 with SE at 106 CFU/mL. Another 20 day-old pullets were fed the same control feed without SCFP and blank inoculated on day 28 with 1 mL of sterile phosphate-buffered saline to serve as a negative control. Qualitative and quantitative analyses of cecal contents for Salmonella were performed for all birds on day 32. The prevalence of SE in the ceca of all directly challenged birds was 100%; however, the SE concentration in birds fed SCFP diet (3.35 log CFU/g) was significantly lower (P < 0.0001) than that of the PCON birds not fed SCFP (4.49 log CFU/g). The proportion of birds with enumerable SE concentrations was lower in SCFP-fed pullets (57.9%) than in the PCON pullets (95.0%). These data suggest that inclusion of SCFP in the diet may aid in the reduction of SE within the ceca of commercial laying hens and could serve as an additional preharvest food safety hurdle. HIGHLIGHTS
Collapse
Affiliation(s)
- E Gingerich
- Diamond V, Cargill Health Technologies, 2525 60th Avenue SW, Cedar Rapids, Iowa 52404
| | - T Frana
- Department of Veterinary Diagnostic and Production Animal Medicine, 2203 Lloyd Veterinary Medical Center, Iowa State University, Ames, Iowa 50011
| | - C M Logue
- Department of Population Health, College of Veterinary Medicine, University of Georgia, 501 D. W. Brooks Drive, Athens, Georgia 30605, USA
| | - D P Smith
- Diamond V, Cargill Health Technologies, 2525 60th Avenue SW, Cedar Rapids, Iowa 52404
| | - H O Pavlidis
- Diamond V, Cargill Health Technologies, 2525 60th Avenue SW, Cedar Rapids, Iowa 52404
| | - W E Chaney
- Diamond V, Cargill Health Technologies, 2525 60th Avenue SW, Cedar Rapids, Iowa 52404
- (ORCID: https://orcid.org/0000-0002-4707-4854 [W.E.C.])
| |
Collapse
|
9
|
Arkali A, Çetinkaya B. Molecular identification and antibiotic resistance profiling of Salmonella species isolated from chickens in eastern Turkey. BMC Vet Res 2020; 16:205. [PMID: 32560721 PMCID: PMC7304202 DOI: 10.1186/s12917-020-02425-0] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2020] [Accepted: 06/11/2020] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND The aim of this study was to obtain quantitative data about the frequency, genotypic characterization and antibiotic resistance profiling of Salmonella agents in chicken flocks located in eastern Turkey. RESULTS Feces samples representing at least 20% of the flock area were collected via sock swabs from commercial poultry flocks in the study region in addition to internal organs (liver, spleen, intestine) collected at necropsy of suspected chickens belonging to small family enterprises. The samples were analyzed by conventional bacteriological methods (ISO 6579:2002/A1:2007) for isolation, and genus specific (invA) PCR for the identification of Salmonella spp. Then, two mPCR were set up to determine Salmonella serotypes and genotypic resistance status of the field isolates against ampicillin, tetracycline, trimethoprim-sulfamethoxazole and chloramphenicol antibiotics. In the PCR analysis of the suspected colonies, 98.5% were confirmed as Salmonella spp., and, the most prevalent serotype was identified as S. Infantis with the proportion of 26.6% (17/64), followed by S. Enteritidis with 21.9% (14/64) and S. Typhimurium with 9.4% (6/64). The findings related to antibiotic resistance genes revealed that the most frequently determined gene was sul1 with approximately 58%, while the blaTEM gene was detected at the lowest proportion with 20%, among Salmonella isolates. CONCLUSIONS The results indicated that Salmonella infections constitute a potential risk for chicken flocks in the country and that genotypic resistance rates against various antibiotics should draw particular attention in terms of both human and animal health.
Collapse
Affiliation(s)
| | - Burhan Çetinkaya
- Department of Microbiology, Veterinary Faculty, Firat University, 23100, Elazig, Turkey.
| |
Collapse
|
10
|
Kumar N, Mohan K, Georges K, Dziva F, Adesiyun AA. Prevalence, Serovars, and Antimicrobial Resistance of Salmonella in Cecal Samples of Chickens Slaughtered in Pluck Shops in Trinidad. J Food Prot 2019; 82:1560-1567. [PMID: 31424291 DOI: 10.4315/0362-028x.jfp-18-553] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
The aim of the study was to determine the prevalence and zonal distribution of Salmonella serotypes in poultry and to determine the antimicrobial resistance profile of Salmonella isolates. A total of 1,503 cecal samples of poultry were randomly collected from 33 pluck shops across Trinidad. Isolation and identification of Salmonella followed standard methods, and the disk diffusion method was used to determine resistance of isolates to 14 antimicrobial agents. Ninety-one (6.1%) of the 1,503 samples collected from four zones were positive for Salmonella. The frequency of isolation of Salmonella from chicken ceca (6.5%) was higher than that detected in duck ceca (5.1%), but the difference was not statistically significant (P > 0.05). Ten serotypes were detected, with Salmonella Molade, Salmonella enterica subsp. enterica I, and Salmonella Typhimurium the most prevalent at 56.0, 11.0, and 8.8%, respectively. The highest frequency of isolation of Salmonella was recorded in the northeast zone (59.3%). All 91 isolates exhibited resistance to at least 1 of the 14 antimicrobial agents. The highest frequency of resistance was exhibited to ampicillin (51.0%), kanamycin (49.5%), and streptomycin (37.4%). A total of 22 resistance patterns were exhibited by the 91 isolates of Salmonella, and 13 isolates (14.3%) exhibited multiple drug resistance. The results emphasize the need to implement hygienic practices to reduce the levels of contamination at poultry pluck shops and the need for prudent use of antimicrobial agents in the poultry production system in Trinidad.
Collapse
Affiliation(s)
- Nitu Kumar
- Department of Basic Veterinary Sciences, School of Veterinary Medicine, Faculty of Medical Sciences, University of The West Indies, St. Augustine, Trinidad and Tobago (ORCID: https://orcid.org/0000-0001-9470-9421 [A.A.A.])
| | - Krishna Mohan
- Department of Basic Veterinary Sciences, School of Veterinary Medicine, Faculty of Medical Sciences, University of The West Indies, St. Augustine, Trinidad and Tobago (ORCID: https://orcid.org/0000-0001-9470-9421 [A.A.A.])
| | - Karla Georges
- Department of Basic Veterinary Sciences, School of Veterinary Medicine, Faculty of Medical Sciences, University of The West Indies, St. Augustine, Trinidad and Tobago (ORCID: https://orcid.org/0000-0001-9470-9421 [A.A.A.])
| | - Francis Dziva
- Department of Basic Veterinary Sciences, School of Veterinary Medicine, Faculty of Medical Sciences, University of The West Indies, St. Augustine, Trinidad and Tobago (ORCID: https://orcid.org/0000-0001-9470-9421 [A.A.A.])
| | - Abiodun A Adesiyun
- Department of Basic Veterinary Sciences, School of Veterinary Medicine, Faculty of Medical Sciences, University of The West Indies, St. Augustine, Trinidad and Tobago (ORCID: https://orcid.org/0000-0001-9470-9421 [A.A.A.])
| |
Collapse
|
11
|
Taddese D, Tolosa T, Deresa B, Lakow M, Olani A, Shumi E. Antibiograms and risk factors of Salmonella isolates from laying hens and eggs in Jimma Town, South Western Ethiopia. BMC Res Notes 2019; 12:472. [PMID: 31370868 PMCID: PMC6670156 DOI: 10.1186/s13104-019-4516-5] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2019] [Accepted: 07/24/2019] [Indexed: 11/30/2022] Open
Abstract
Objectives Salmonella is the most important causes of foodborne illness especially from poultry and poultry products. So the aim of this study was to carryout phenotypic characterization, antimicrobials susceptibility pattern and risk factors of Salmonella isolates from farms and markets eggs, cloacae swabs of chickens and stool of egg collectors. A cross-sectional study was conducted from January 2018 to September 2018. Samples were, processed; Salmonella was isolated, phenotypically identified by OmniLog and antimicrobials susceptibility were carried out. Result Over all; 11 (2.65%) of Salmonella enterica were phenotypically characterized out of 415 samples from farms egg content (n = 83), farms eggshell (n = 83), cloacae (n = 83), market eggshell (n = 83) and market egg contents (n = 83) with 2.4%, 0%, 2.4%, 4.8% and 3.6% prevalence, respectively. Out of isolates, 8 (72.72%) displayed multidrug resistance. All isolates showed susceptibility to Gentamicin, Kanamycin and Streptomycin. Lack of separating cracked eggs, washing hand, eggs stay longer unsold, and mixing excreta with feed were associated risk factors for Salmonella presence (P-value < 0.05). The presence of drug resistant Salmonella enterica within egg/and chicken can pose serious health problem. Good hygienic practices are important to reduce risk factors of Salmonella contamination.
Collapse
Affiliation(s)
- Diriba Taddese
- Jimma University College of Agriculture and Veterinary Medicine, Jimma, Ethiopia.
| | - Tadele Tolosa
- Jimma University College of Agriculture and Veterinary Medicine, Jimma, Ethiopia
| | - Benti Deresa
- Jimma University College of Agriculture and Veterinary Medicine, Jimma, Ethiopia
| | - Matios Lakow
- National Animal Health Diagnostic and Investigation Center, Sebeta, Ethiopia
| | - Abebe Olani
- National Animal Health Diagnostic and Investigation Center, Sebeta, Ethiopia
| | - Eshetu Shumi
- Jimma University College of Agriculture and Veterinary Medicine, Jimma, Ethiopia
| |
Collapse
|
12
|
Long M, Yu H, Chen L, Wu G, Zhao S, Deng W, Chen S, Zhou K, Liu S, He L, Ao X, Yan Y, Ma M, Wang H, Davis MA, Jones L, Li B, Zhang A, Zou L. Recovery of Salmonella isolated from eggs and the commercial layer farms. Gut Pathog 2017; 9:74. [PMID: 29255489 PMCID: PMC5729242 DOI: 10.1186/s13099-017-0223-8] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/28/2017] [Accepted: 12/05/2017] [Indexed: 11/29/2022] Open
Abstract
BACKGROUND Salmonella is recognized as a common bacterial cause of foodborne diarrheal illness worldwide, and animal or its food products have been the most common vehicles of the Salmonella infections. This study aimed to investigate the distribution of Salmonella in two commercial layer farms and to determine the genetic relatedness between these strains. The Salmonella isolates were serotyped by slide agglutination using commercial antisera and analyzed for genetic relatedness using pulsed-field gel electrophoresis (PFGE). RESULTS The internal environment had the highest prevalence of Salmonella (14/15, 93.3%), followed by external environment (60/96, 62.5%) and egg samples (23/84, 27.3%). The prevalence of Salmonella in the environment was significantly higher than that in egg samples (p < 0.05). The occurrence of Salmonella in the internal environment (93.3%) was relatively higher than in the external environment (55.6-77.2%). The 111 isolates were distributed among 15 PFGE types, and the PFGE results suggested that there existed cross-contamination between these strains not only from eggs, but also from the environments. CONCLUSIONS The findings indicated ongoing Salmonella cross-contamination inside or outside of the layer farms, and that Salmonella could also spread along the egg production line.
Collapse
Affiliation(s)
- Mei Long
- College of Resources, Sichuan Agricultural University, Chengdu, 611130 People’s Republic of China
| | - Hua Yu
- Sichuan Entry-Exit Inspection and Quarantine Bureau, Chengdu, 610041 People’s Republic of China
| | - Li Chen
- National Quality Supervision and Inspection Center of Liquor Products (Sichuan), Yibin, 644000 People’s Republic of China
| | - Guoyan Wu
- College of Resources, Sichuan Agricultural University, Chengdu, 611130 People’s Republic of China
| | - Siyue Zhao
- College of Resources, Sichuan Agricultural University, Chengdu, 611130 People’s Republic of China
| | - Wenwen Deng
- College of Resources, Sichuan Agricultural University, Chengdu, 611130 People’s Republic of China
| | - Shujuan Chen
- College of Food Science, Sichuan Agricultural University, Ya’an, 625014 People’s Republic of China
| | - Kang Zhou
- College of Food Science, Sichuan Agricultural University, Ya’an, 625014 People’s Republic of China
| | - Shuliang Liu
- College of Food Science, Sichuan Agricultural University, Ya’an, 625014 People’s Republic of China
| | - Li He
- College of Food Science, Sichuan Agricultural University, Ya’an, 625014 People’s Republic of China
| | - Xiaoling Ao
- College of Food Science, Sichuan Agricultural University, Ya’an, 625014 People’s Republic of China
| | - Yubao Yan
- Sichuan Entry-Exit Inspection and Quarantine Bureau, Chengdu, 610041 People’s Republic of China
| | - Menggen Ma
- College of Resources, Sichuan Agricultural University, Chengdu, 611130 People’s Republic of China
| | - Hongning Wang
- College of Food Science, Sichuan Agricultural University, Ya’an, 625014 People’s Republic of China
| | - Margaret A. Davis
- College of Life Sciences, Sichuan University, Chengdu, 610065 People’s Republic of China
| | - Lisa Jones
- College of Life Sciences, Sichuan University, Chengdu, 610065 People’s Republic of China
| | - Bei Li
- Dujiangyan Campus, Sichuan Agricultural University, Chengdu, 611830 People’s Republic of China
| | - Anyun Zhang
- College of Life Sciences, Sichuan University, Chengdu, 610065 People’s Republic of China
- College of Veterinary Medicine, Washington State University, Pullman, USA
| | - Likou Zou
- College of Resources, Sichuan Agricultural University, Chengdu, 611130 People’s Republic of China
| |
Collapse
|
13
|
Rodríguez FI, Pascal DC, Pulido D, Osinalde JM, Caffer MI, Bueno DJ. Prevalence, antimicrobial resistance profile and comparison of selective plating media for the isolation ofSalmonellain backyard chickens from Entre Rios, Argentina. Zoonoses Public Health 2017; 65:e95-e101. [DOI: 10.1111/zph.12415] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2017] [Indexed: 11/30/2022]
Affiliation(s)
- F. I. Rodríguez
- Instituto Nacional de Tecnología Agropecuaria EEA Concepción del Uruguay; Concepción del Uruguay Argentina
- Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET); Laboratorio de Sanidad Aviar; Instituto Nacional de Tecnología Agropecuaria EEA Concepción del Uruguay; Concepción del Uruguay Argentina
| | - D. C. Pascal
- Facultad de Ciencia y Tecnología, Sede Basavilbaso; Universidad Autónoma de Entre Ríos; Basavilbaso Argentina
| | - D. Pulido
- Fundación ArgenINTA; Paraná Argentina
| | - J. M. Osinalde
- Dirección General de Recursos Naturales; Ministerio de Producción de Entre Ríos; Paraná Argentina
| | - M. I. Caffer
- Servicio de Enterobacterias; Instituto Nacional de Enfermedades Infecciosas (INEI) - ANLIS “Dr Carlos G. Malbrán”; Ciudad de Buenos Aires Argentina
| | - D. J. Bueno
- Instituto Nacional de Tecnología Agropecuaria EEA Concepción del Uruguay; Concepción del Uruguay Argentina
- Facultad de Ciencia y Tecnología, Sede Basavilbaso; Universidad Autónoma de Entre Ríos; Basavilbaso Argentina
| |
Collapse
|
14
|
Soria MC, Soria MA, Bueno DJ, Godano EI, Gómez SC, ViaButron IA, Padin VM, Rogé AD. Salmonella spp. contamination in commercial layer hen farms using different types of samples and detection methods. Poult Sci 2017; 96:2820-2830. [PMID: 28379493 DOI: 10.3382/ps/pex053] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2016] [Accepted: 03/02/2017] [Indexed: 11/20/2022] Open
Abstract
The performance of detection methods (culture methods and polymerase chain reaction assay) and plating media used in the same type of samples were determined as well as the specificity of PCR primers to detected Salmonella spp. contamination in layer hen farms. Also, the association of farm characteristics with Salmonella presence was evaluated. Environmental samples (feces, feed, drinking water, air, boot-swabs) and eggs were taken from 40 layer hen houses. Salmonella spp. was most detected in boot-swabs taken around the houses (30% and 35% by isolation and PCR, respectively) follow by fecal samples (15.2% and 13.6% by isolation and PCR, respectively). Eggs, drinking water, and air samples were negative for Salmonella detection. Salmonella Schwarzengrund and S. Enteritidis were the most isolated serotypes. For plating media, relative specificity was 1, and the relative sensitivity was greater for EF-18 agar than XLDT agar in feed and fecal samples. However, relative sensitivity was greater in XLDT agar than EF-18 agar for boot-swab samples. Agreement was between fair to good depending on the sample, and it was good between isolation and PCR (feces and boot-swabs), without agreement for feed samples. Salmonella spp. PCR was positive for all strains, while S. Typhimurium PCR was negative. Salmonella Enteritidis PCR used was not specific. Based in the multiple logistic regression analyses, categorization by counties was significant for Salmonella spp. presence (P-value = 0.010). This study shows the importance of considering different types of samples, plating media and detection methods during a Salmonella spp. monitoring study. In addition, it is important to incorporate the sampling of floors around the layer hen houses to learn if biosecurity measures should be strengthened to minimize the entry and spread of Salmonella in the houses. Also, the performance of some PCR methods and S. Enteritidis PCR should be improved, and biosecurity measures in hen farms must be reinforced in the region of more concentrated layer hen houses to reduce the probability of Salmonella spp. presence.
Collapse
Affiliation(s)
- M C Soria
- Instituto Nacional de Tecnología Agropecuaria EEA Concepción del Uruguay, Ruta Provincial 39 Km 143,5, 3260, Concepción del Uruguay, Entre Ríos, Argentina
| | - M A Soria
- Instituto Nacional de Tecnología Agropecuaria EEA Concepción del Uruguay, Ruta Provincial 39 Km 143,5, 3260, Concepción del Uruguay, Entre Ríos, Argentina
| | - D J Bueno
- Instituto Nacional de Tecnología Agropecuaria EEA Concepción del Uruguay, Ruta Provincial 39 Km 143,5, 3260, Concepción del Uruguay, Entre Ríos, Argentina
| | - E I Godano
- Tecnovo S.A., Parque Industrial C.C. 17, 3116, Crespo, Entre Ríos, Argentina
| | - S C Gómez
- Fundación ArgenINTA, Ruta 11, Km 12.5, 3101, Oro Verde, Paraná, Entre Ríos, Argentina
| | - I A ViaButron
- Instituto Nacional de Tecnología Agropecuaria EEA Concepción del Uruguay, Ruta Provincial 39 Km 143,5, 3260, Concepción del Uruguay, Entre Ríos, Argentina
| | - V M Padin
- Servicio de Antígenos y Antisueros, Instituto Nacional de Producción de Biológicos (INPB) - ANLIS ''Dr Carlos G. Malbrán'', Av. Vélez Sarsfield 563, C1282AFF, Ciudad de Buenos Aires, Argentina
| | - A D Rogé
- Servicio de Antígenos y Antisueros, Instituto Nacional de Producción de Biológicos (INPB) - ANLIS ''Dr Carlos G. Malbrán'', Av. Vélez Sarsfield 563, C1282AFF, Ciudad de Buenos Aires, Argentina
| |
Collapse
|
15
|
Kulshreshtha G, Rathgeber B, MacIsaac J, Boulianne M, Brigitte L, Stratton G, Thomas NA, Critchley AT, Hafting J, Prithiviraj B. Feed Supplementation with Red Seaweeds, Chondrus crispus and Sarcodiotheca gaudichaudii, Reduce Salmonella Enteritidis in Laying Hens. Front Microbiol 2017; 8:567. [PMID: 28443073 PMCID: PMC5385333 DOI: 10.3389/fmicb.2017.00567] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2016] [Accepted: 03/20/2017] [Indexed: 01/22/2023] Open
Abstract
Salmonella Enteritidis is vertically transmitted to eggs from laying hens through infected ovaries and oviducts. S. Enteritidis can also penetrate the eggshell from contaminated feces. Reducing S. Enteritidis in laying hens is vital to provide safer eggs and minimize the spread of salmonellosis to humans. Antibiotics have been widely used to control bacterial diseases in broilers and laying hens. However, there is a major concern that the use of antibiotics leads to the development of antibiotic resistance and adverse effects on microbiota of the treated birds. Thus, there is an interest in developing alternatives to antibiotics, such as dietary prebiotics. In the present study, feed supplemented with the red seaweeds: Chondrus crispus (CC) or Sarcodiotheca gaudichaudii (SG), was offered to laying hens late in production to control S. Enteritidis. Diets contained one of the following; 2% or 4% Chondrus crispus (CC2, and CC4, respectively) or Sarcodiotheca gaudichaudii (SG2 and SG4, respectively). Chlortetracycline was used in the positive control diet. During week-4, 48 birds were orally challenged with 2 × 109 CFU/mL of S. Enteritidis. Eggs and fecal samples were collected 1, 3, 5, and 7 days' post inoculation. Birds were euthanized and organs (ceca, ovary, liver, and spleen) were sampled and analyzed for the presence of S. Enteritidis, 7 days' post inoculation. Results showed that seaweed reduced the negative effect on body weight and egg production in S. Enteritidis-challenged laying hens. Analysis of fecal samples showed that the antibiotic (CTC) reduced S. Enteritidis in the intestinal tract and fecal samples, 3 days' post inoculation. Fecal samples from Chlortetracycline and CC4 supplemented birds tested negative for S. Enteritidis on days 5 and 7 post inoculation (lowest detection limit = 10-1). S. Enteritidis colonization in the ceca was also significantly reduced in birds fed CC (4%) and Chlortetracycline. Blood serum profiles revealed that there were no significant differences in serum aspartate aminotransferase (AST) and sodium. However, the level of serum immunoglobulin (IgA) was higher in the CC4 treatment. The relative abundance of Lactobacillus acidophilus was significantly higher in CC4 while, the abundance of the pathogenic bacteria, Clostridium perfringens and Salmonella Enteritidis were reduced compared to control. Results indicate that feed supplemented with 4% CC is effective in providing protection against Salmonella Enteritidis colonization in laying hens.
Collapse
Affiliation(s)
- Garima Kulshreshtha
- Department of Plant, Food, and Environmental Sciences, Faculty of Agriculture, Dalhousie University, TruroNS, Canada
| | - Bruce Rathgeber
- Department of Animal Science and Aquaculture, Faculty of Agriculture, Dalhousie University, TruroNS, Canada
| | - Janice MacIsaac
- Atlantic Poultry Research Institute, Dalhousie University, TruroNS, Canada
| | - Martine Boulianne
- Faculté de Médecine Vétérinaire, Université de Montréal, Saint-HyacintheQC, Canada
| | - Lehoux Brigitte
- Faculté de Médecine Vétérinaire, Université de Montréal, Saint-HyacintheQC, Canada
| | - Glenn Stratton
- Department of Plant, Food, and Environmental Sciences, Faculty of Agriculture, Dalhousie University, TruroNS, Canada
| | - Nikhil A. Thomas
- Department of Microbiology and Immunology, Faculty of Medicine, Dalhousie University, HalifaxNS, Canada
| | | | | | - Balakrishnan Prithiviraj
- Department of Plant, Food, and Environmental Sciences, Faculty of Agriculture, Dalhousie University, TruroNS, Canada
| |
Collapse
|
16
|
Hulaj B, Çabeli P, Goga I, Taylor N, Hess C, Hess M. Survey of the prevalence of Salmonella species on laying hen farms in Kosovo. Poult Sci 2016; 95:2030-7. [DOI: 10.3382/ps/pew149] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/08/2016] [Indexed: 11/20/2022] Open
|
17
|
Im MC, Jeong SJ, Kwon YK, Jeong OM, Kang MS, Lee YJ. Prevalence and characteristics of Salmonella spp. isolated from commercial layer farms in Korea. Poult Sci 2015; 94:1691-8. [DOI: 10.3382/ps/pev137] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/14/2015] [Indexed: 11/20/2022] Open
|
18
|
Rodríguez R, Fandiño C, Donado P, Guzmán L, Verjan N. Characterization ofSalmonellafrom Commercial Egg-Laying Hen Farms in a Central Region of Colombia. Avian Dis 2015; 59:57-63. [DOI: 10.1637/10873-052714-reg] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
|
19
|
Santos ICL, Teixeira RSC, Lopes ES, Albuquerque AH, Rocha e Silva RC, Salles RPR, Machado DN, Horn RV, Bezerra WGA, Buxade CC, Maciel WC. Experimental infection of Salmonella Enteritidis in quails submitted to forced molting by feed fasting. BRAZILIAN JOURNAL OF POULTRY SCIENCE 2015. [DOI: 10.1590/1516-635x170131-36] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
|
20
|
Gast RK, Guraya R, Jones DR, Anderson KE. Horizontal transmission of Salmonella Enteritidis in experimentally infected laying hens housed in conventional or enriched cages. Poult Sci 2014; 93:3145-51. [PMID: 25306464 DOI: 10.3382/ps.2014-04237] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023] Open
Abstract
The majority of human illnesses caused by Salmonella Enteritidis are attributed to contaminated eggs, and the prevalence of this pathogen in commercial laying flocks has been identified as a leading epidemiologic risk factor. Flock housing and management systems can affect opportunities for the introduction, transmission, and persistence of foodborne pathogens in poultry. The animal welfare implications of different types of housing for laying hens have been widely discussed in recent years, but the food safety consequences of these production systems remain incompletely understood. The present study assessed the effects of 2 different housing systems (conventional cages and colony cages enriched with perching and nesting areas) on the horizontal transmission of experimentally introduced Salmonella Enteritidis infection within groups of laying hens. In each of 2 trials, 136 hens were distributed among cages of both housing systems and approximately one-third of the hens in each cage were orally inoculated with doses of 10(8) cfu of Salmonella Enteritidis (phage type 13a in one trial and phage type 4 in the other). At regular intervals through 23 d postinoculation, cloacal swabs were collected from all hens (inoculated and uninoculated) and cultured for Salmonella Enteritidis. Horizontal contact transmission of infection was observed for both Salmonella Enteritidis strains, reaching peak prevalence values of 27.1% of uninoculated hens in conventional cages and 22.7% in enriched cages. However, no significant differences (P > 0.05) in the overall frequencies of horizontal Salmonella Enteritidis transmission were evident between the 2 types of housing. These results suggest that opportunities for Salmonella Enteritidis infection to spread horizontally throughout laying flocks may be similar in conventional and enriched cage-based production systems.
Collapse
Affiliation(s)
- Richard K Gast
- USDA, Agricultural Research Service, Egg Safety and Quality Research Unit, Athens, GA 30605
| | - Rupa Guraya
- USDA, Agricultural Research Service, Egg Safety and Quality Research Unit, Athens, GA 30605
| | - Deana R Jones
- USDA, Agricultural Research Service, Egg Safety and Quality Research Unit, Athens, GA 30605
| | - Kenneth E Anderson
- Department of Poultry Science, North Carolina State University, Raleigh 29765
| |
Collapse
|
21
|
Adesiyun A, Webb L, Musai L, Louison B, Joseph G, Stewart-Johnson A, Samlal S, Rodrigo S. Survey of Salmonella contamination in chicken layer farms in three Caribbean countries. J Food Prot 2014; 77:1471-80. [PMID: 25198837 DOI: 10.4315/0362-028x.jfp-14-021] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
This study was conducted to investigate the demography, management, and production practices on layer chicken farms in Trinidad and Tobago, Grenada, and St. Lucia and the frequency of risk factors for Salmonella infection. The frequency of isolation of Salmonella from the layer farm environment, eggs, feeds, hatchery, and imported day-old chicks was determined using standard methods. Of the eight risk factors (farm size, age group of layers, source of day-old chicks, vaccination, sanitation practices, biosecurity measures, presence of pests, and previous disease outbreaks) for Salmonella infection investigated, farm size was the only risk factor significantly associated (P = 0.031) with the prevalence of Salmonella; 77.8% of large farms were positive for this pathogen compared with 33.3 and 26.1% of medium and small farms, respectively. The overall isolation rate of Salmonella from 35 layer farms was 40.0%. Salmonella was isolated at a significantly higher rate (P < 0.05) from farm environments than from the cloacae. Only in Trinidad and Tobago did feeds (6.5% of samples) and pooled egg contents (12.5% of samples) yield Salmonella; however, all egg samples from hotels, hatcheries, and airports in this country were negative. Salmonella Anatum, Salmonella group C, and Salmonella Kentucky were the predominant serotypes in Trinidad and Tobago, Grenada, and St. Lucia, respectively. Although Salmonella infections were found in layer birds sampled, table eggs appear to pose minimal risk to consumers. However, the detection of Salmonella -contaminated farm environments and feeds cannot be ignored. Only 2.9% of the isolates belonged to Salmonella Enteritidis, a finding that may reflect the impact of changes in farm management and poultry production in the region.
Collapse
Affiliation(s)
- Abiodun Adesiyun
- School of Veterinary Medicine, Faculty of Medical Sciences, University of the West Indies, St. Augustine, Trinidad and Tobago.
| | - Lloyd Webb
- Institute of Public Health Studies, College of Veterinary Medicine, Nursing and Allied Health, Tuskegee University, Tuskegee, Alabama 36088, USA
| | - Lisa Musai
- Poultry Surveillance Unit, Ministry of Food Production, Port of Spain, Trinidad and Tobago
| | - Bowen Louison
- Ministry of Agriculture, Forestry and Fisheries, Ministerial Complex, Tanteen, St. George's Grenada, West Indies
| | - George Joseph
- Veterinary and Livestock Services, Ministry of Agriculture, Food Production, Rural Development and Fisheries, Castries, St. Lucia
| | - Alva Stewart-Johnson
- School of Veterinary Medicine, Faculty of Medical Sciences, University of the West Indies, St. Augustine, Trinidad and Tobago
| | - Sannandan Samlal
- School of Veterinary Medicine, Faculty of Medical Sciences, University of the West Indies, St. Augustine, Trinidad and Tobago
| | - Shelly Rodrigo
- Department of Public Health and Preventive Medicine, School of Medicine, St. George's University, University Centre, Grenada, West Indies
| |
Collapse
|
22
|
Webb ML, Spickler JL, Bourassa DV, Cox NA, Wilson JL, Buhr RJ. Recovery of Salmonella serovar Enteritidis from inoculated broiler hatching eggs using shell rinse and shell crush sampling methods. Poult Sci 2014; 93:2117-22. [PMID: 24931964 DOI: 10.3382/ps.2014-03992] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
This study compared the recovery of Salmonella from hatching eggs using 3 sampling methods (eggshell rinsing, eggshell crush following a previous rinse, and eggshell crush without previous rinse). Eggshells were drop-inoculated with approximately 10(1), 10(2), or 10(3) cfu/eggshell of Salmonella Enteritidis and allowed to dry at room temperature for 1 or 24 h. For the shell rinse groups, each inoculated egg was rinsed with buffered peptone water. These rinsed eggs were used for the shell crush with previous rinse groups, and each egg was aseptically cracked, the contents discarded, and the eggshell and membranes crushed with buffered peptone water. This same crush procedure was used for the shell crush without previous shell rinse eggs. The recovery of Salmonella 1 h after inoculation for shell rinse sampled eggs was 16% positive at 10(1), 49% at 10(2), and 93% at 10(3) cfu/eggshell challenge. For the shell crush with previous shell rinse, sampled egg recovery was 0% positive at 10(1), 3% at 10(2), and 17% at 10(3) cfu/eggshell. For the shell crush, sampled eggs had recovery of 23% positive at 10(1), 69% at 10(2), and 96% at 10(3) cfu/eggshell challenge. The recovery of Salmonella 24 h after inoculation for the shell rinse eggs was 3% positive at 10(1), 12% at 10(2), and 22% at 10(3) cfu/eggshell challenge; recovery for shell crush with previous shell rinse sampling was 2% positive at 10(1), 8% at 10(2), and 5% at 10(3) cfu/eggshell challenge; and for the shell crush sampling recovery was 2% at 10(1), 32% at 10(2), and 42% at 10(3) cfu/eggshell challenge. Eggshell crush was a more sensitive (∼10 percentage points) sampling method than eggshell rinse at both 1 and 24 h, but both methods were equally optimal when the inoculum was at 10(3) and samples were collected after 1 h. Waiting 24 h after inoculation to sample significantly lowered the recovery for both the shell rinse and shell crush sampling methods by ∼40 percentage points.
Collapse
Affiliation(s)
- M L Webb
- Biology Department, Claflin University, Orangeburg, SC 29115 Poultry Microbiological Safety Research Unit, Richard B. Russell Agricultural Research Center, USDA, Agricultural Research Service, Athens, GA 30605
| | - J L Spickler
- Poultry Microbiological Safety Research Unit, Richard B. Russell Agricultural Research Center, USDA, Agricultural Research Service, Athens, GA 30605 Department of Poultry Science, The University of Georgia, Athens 30602
| | - D V Bourassa
- Poultry Microbiological Safety Research Unit, Richard B. Russell Agricultural Research Center, USDA, Agricultural Research Service, Athens, GA 30605
| | - N A Cox
- Poultry Microbiological Safety Research Unit, Richard B. Russell Agricultural Research Center, USDA, Agricultural Research Service, Athens, GA 30605
| | - J L Wilson
- Department of Poultry Science, The University of Georgia, Athens 30602
| | - R J Buhr
- Poultry Microbiological Safety Research Unit, Richard B. Russell Agricultural Research Center, USDA, Agricultural Research Service, Athens, GA 30605
| |
Collapse
|
23
|
Abstract
Ninety-five (95) captive tinamids (Aves, Tinamiformes) of species Crypturellus obsoletus (brown tinamou), Crypturellus parvirostris (small-billed tinamou), Crypturellus tataupa (Tataupa tinamou), Crypturellus undulatus (undulated tinamou), Rhynchotus rufescens (red-winged tinamou), and Tinamus solitarius (solitary tinamou) were evaluated for diseases of mandatory control in the Brazilian Poultry Health Program (PNSA). Antibodies were detected by serum agglutination test (SAT) in 4 birds for Mycoplasma gallisepticum (MG) and in 27 birds for Salmonella Pullorum (SP) and Salmonella Gallinarum (SG). However, by hemagglutination inhibition (HI), sera were negative to MG and Mycoplasma synoviae (MS). Bacteriology was negative for SP and SG. No antibody was detected by HI to avian paramyxovirus type 1. However, antibodies to infectious bursal disease virus were detected in 9.4% (9/95) by ELISA. Fecal parasitology and necropsy revealed Capillaria spp. in 44.2% (42/95), Eimeria rhynchoti in 42.1% (40/95), Strongyloides spp. in 100% (20/20), Ascaridia spp., and unknown sporozoa in small-billed tinamou. Ectoparasites were detected in 42.1% (40/95) by inspection, and collected for identification. The louse Strongylocotes lipogonus (Insecta: Phthiraptera) was found on all Rhynchotus rufescens. An additional four lice species were found on 14 individuals. Traumatic lesions included four individual R. rufescens (4/40, 10%) with rhinotheca fracture, one with mandible fracture and three with posttraumatic ocular lesions (3/40, 7.5%). One C. parvirostris had phalangeal loss, another had tibiotarsal joint ankylosis and another had an open wound on the foot. Results suggest that major poultry infections/ diseases may not be relevant in tinamids, and that this group of birds, as maintained within distances for biosecurity purposes, may not represent a risk to commercial poultry. Ecto- and endoparasites were common, disseminated, and varied; regular monitoring of flocks is recommended for best performance.
Collapse
|
24
|
Gopinath S, Carden S, Monack D. Shedding light on Salmonella carriers. Trends Microbiol 2012; 20:320-7. [DOI: 10.1016/j.tim.2012.04.004] [Citation(s) in RCA: 100] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2012] [Revised: 04/03/2012] [Accepted: 04/10/2012] [Indexed: 01/10/2023]
|
25
|
Soria M, Soria M, Bueno D. Comparison of 2 culture methods and PCR assays for Salmonella detection in poultry feces. Poult Sci 2012; 91:616-26. [DOI: 10.3382/ps.2011-01831] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
|