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1. Research Note: Internal organ colonization by Salmonella Enteritidis in experimentally infected layer pullets reared at different stocking densities in indoor cage-free housing

Author:
Deana R. Jones,   et al.   ; Richard K. Gast; Rupa Guraya; Javier S. Garcia; Darrin M. Karcher;     Show all 5 Authors
Source:
Poultry science 2022 v.101 no.11 pp. 102104
ISSN:
0032-5791
Subject:
Salmonella Enteritidis; egg production; human diseases; intestines; liver; risk reduction; sexual maturity; spleen
Abstract:
... Contamination of eggs by Salmonella has often been identified as a source of food-borne human illness. S. Enteritidis is deposited inside developing eggs when invasive infections of laying hens reach the reproductive organs. The susceptibility of hens in cage-based housing systems to S. Enteritidis has been associated with their stocking density, but the applicability of this information to extens ...
DOI:
10.1016/j.psj.2022.102104
CHORUS:
10.1016/j.psj.2022.102104

2. Applied Research Note: Internal organ colonization and horizontal transmission of experimental Salmonella Enteritidis and Salmonella Kentucky infection in vaccinated laying hens in indoor cage-free housing

Author:
Deana R. Jones,   et al.   ; Richard K. Gast; Rupa Guraya; Kenneth E. Anderson; Darrin M. Karcher;     Show all 5 Authors
Source:
Journal of applied poultry research 2021 v.30 no.1 pp. -
ISSN:
1056-6171
Subject:
Salmonella Enteritidis; Salmonella Kentucky; applied research; disease transmission; egg contamination; egg production; immunity; intestines; liver; oviducts; pathogens; public health; risk reduction; spleen; vaccination
Abstract:
... Cage-free housing of laying hens may provide opportunities for widespread environmental distribution of Salmonella contamination and horizontal transmission of infection within flocks. Salmonella Enteritidis in commercial laying flocks presents an ongoing public health concern because reproductive organ colonization in hens leads to deposition inside eggs. Many S. Enteritidis control programs incl ...
Handle:
10113/7198051
DOI:
10.1016/j.japr.2020.100132
CHORUS:
10.1016/j.japr.2020.100132

3. Research Note: Contamination of eggs by Salmonella Enteritidis and Salmonella Typhimurium in experimentally infected laying hens in indoor cage-free housing

Author:
Deana R. Jones,   et al.   ; Richard K. Gast; Rupa Guraya; Kenneth E. Anderson; Darrin M. Karcher;     Show all 5 Authors
Source:
Poultry science 2021 v.100 no.11 pp. 101438
ISSN:
0032-5791
Subject:
Salmonella Enteritidis; Salmonella Typhimurium; eggs; flocks; humans; nests; oviposition; public health; serotypes; wood
Abstract:
... Contaminated eggs are a leading source of human Salmonella infections and this problem continues to challenge public health authorities and egg industries around the world. Salmonella invasion of the ovaries and oviducts of infected laying hens can result in bacterial deposition inside the edible portions of developing eggs. The introduction, persistence, and transmission of salmonellae in commerc ...
DOI:
10.1016/j.psj.2021.101438
CHORUS:
10.1016/j.psj.2021.101438

4. Equivalency of peroxyacetic acid to chlorine as a shell egg sanitizing rinse

Author:
Deana R. Jones,   et al.   ; Javier S. Garcia; Richard K. Gast; Garrett E. Ward;     Show all 4 Authors
Source:
Poultry science 2021 v.100 no.6 pp. 101069
ISSN:
0032-5791
Subject:
Enterobacter cloacae; Salmonella Typhimurium; USDA; chlorine; eggs; indicator species; inoculum; peracetic acid; poultry science; sanitation; sanitizers
Abstract:
... In the United States, all shell eggs processed under the USDA Agricultural Marketing Service voluntary grading standards must receive a shell sanitizing rinse of 100–200 ppm chlorine or its equivalent after leaving the washing process. A study was conducted to determine the concentration of peroxyacetic acid (PAA) which would be equivalent to 100–200 ppm chlorine (Cl) in reducing target organisms ...
DOI:
10.1016/j.psj.2021.101069
CHORUS:
10.1016/j.psj.2021.101069

5. Pooling of Laying Hen Environmental Swabs and Efficacy of Salmonella Detection

Author:
Deana R. Jones,   et al.   ; Richard K. Gast; Prafulla Regmi; Garrett E. Ward; Kenneth E. Anderson; Darrin M. Karcher;     Show all 6 Authors
Source:
Journal of food protection 2020 v.83 no.6 pp. 943-950
ISSN:
0362-028X
Subject:
Food and Drug Administration; Salmonella Enteritidis; Salmonella Heidelberg; Salmonella Kentucky; Salmonella Typhimurium; barns; cages; eggs; farms; flora; food safety; inoculum; nalidixic acid; serotypes; streptomycin; Kentucky
Abstract:
... Environmental testing for Salmonella Enteritidis is required for U.S. shell egg producers with ≥3,000 hens on a farm. The egg producer assumes all costs for the mandatory testing. According to the U.S. Food and Drug Administration (FDA) Egg Rule, either manure scraper or drag swabs can be collected according to published guidelines and requirements. The present study was undertaken to determine th ...
DOI:
10.4315/JFP-19-467

6. Development of Online Egg Grading Information Management System with Data Warehouse Technique

Author:
Deana R. Jones,   et al.   ; Seung-Chul Yoon; Tae Sung Shin; Kurt Lawrence;     Show all 4 Authors
Source:
Applied engineering in agriculture v.36 no.4 pp. 589-604
ISSN:
0883-8542
Subject:
Internet; USDA; agriculture; data analysis; data collection; digital database; eggs; information storage; information systems; management systems; paper
Abstract:
... Highlights Digital data collection and management system is developed for the USDA-AMS’s shell-egg grading program. Database system consisting of OLTP, data warehouse and OLAP databases enables online data entry and trend reporting. Data and information management is done through web application servers. Users access the databases via web browsers. Abstract . This paper is concerned with developme ...
Handle:
10113/7180616
DOI:
10.13031/aea.13675

7. Research Note: Horizontal transmission and internal organ colonization by Salmonella Enteritidis and Salmonella Kentucky in experimentally infected laying hens in indoor cage-free housing

Author:
Deana R. Jones,   et al.   ; Richard K. Gast; Rupa Guraya; Kenneth E. Anderson; Darrin M. Karcher;     Show all 5 Authors
Source:
Poultry science 2020 v.99 no.11 pp. 6071-6074
ISSN:
0032-5791
Subject:
Salmonella Enteritidis; Salmonella Kentucky; barns; disease transmission; egg contamination; eggs; flocks; intestines; laying hens; liver; oviducts; poultry diseases; salmonellosis; spleen
Abstract:
... The transmission of Salmonella to humans via contaminated eggs is an international public health concern. S. Enteritidis is deposited inside eggs after colonizing reproductive tissues of infected hens. Diverse housing facility characteristics and flock management practices influence Salmonella persistence and transmission in poultry, but the food safety consequences of different housing systems fo ...
DOI:
10.1016/j.psj.2020.08.006
CHORUS:
10.1016/j.psj.2020.08.006

8. Contamination of eggs by Salmonella Enteritidis in experimentally infected laying hens of four commercial genetic lines in conventional cages and enriched colony housing

Author:
Deana R Jones,   et al.   ; Richard K Gast; Prafulla Regmi; Rupa Guraya; Kenneth E Anderson; Darrin M Karcher;     Show all 6 Authors
Source:
Poultry science 2019 v.98 no.10 pp. 5023-5027
ISSN:
0032-5791
Subject:
Salmonella Enteritidis; egg contamination; eggs; human diseases; pathogens; poultry production; public health
Abstract:
... Human illness caused by the consumption of eggs contaminated with Salmonella Enteritidis is a continuing international public health concern. This pathogen is deposited inside the edible contents of eggs as a consequence of its ability to colonize reproductive tissues in infected hens. Conditions in the housing environment can influence the persistence and transmission of avian Salmonella infectio ...
DOI:
10.3382/ps/pez222

9. Colonization of internal organs by Salmonella Enteritidis in experimentally infected laying hens of four commercial genetic lines in conventional cages and enriched colony housing

Author:
Deana R Jones,   et al.   ; Richard K Gast; Prafulla Regmi; Rupa Guraya; Kenneth E Anderson; Darrin M Karcher;     Show all 6 Authors
Source:
Poultry science 2019 v.98 no.4 pp. 1785-1790
ISSN:
0032-5791
Subject:
Salmonella Enteritidis; bacterial colonization; cage rearing; cages; egg contamination; eggs; environmental enrichment; environmental factors; flocks; genetic lines; human diseases; intestines; laying hens; liver; nesting; oviducts; oviposition; pathogens; poultry housing; salmonellosis; spleen; tissues
Abstract:
... The prevalence of Salmonella Enteritidis in commercial egg-laying flocks is a prominent public health concern because contaminated eggs cause human illness. Deposition of this pathogen inside eggs results from bacterial colonization of reproductive tissues in infected hens. Environmental conditions can influence avian Salmonella infections, but the food safety consequences of different poultry hou ...
DOI:
10.3382/ps/pey541

10. Thermal Inactivation Kinetics of Three Heat-Resistant Salmonella Strains in Whole Liquid Egg

Author:
Deana R. Jones,   et al.   ; Joshua B. Gurtler; Vijay K. Juneja; Anuj Purohit;     Show all 4 Authors
Source:
Journal of food protection 2019 v.82 no.9 pp. 1465-1471
ISSN:
0362-028X
Subject:
Salmonella; Weibull statistics; agar; death; glass; heat inactivation; heat tolerance; liquid egg products; microbiological quality; nalidixic acid; pasteurization; sodium pyruvate; temperature
Abstract:
... The heat resistance of three heat-resistant strains of Salmonella was determined in whole liquid egg (WLE). Inoculated samples in glass capillary tubes were completely immersed in a circulating water bath and held at 56, 58, 60, 62, and 64°C for predetermined lengths of time. The recovery medium was tryptic soy agar with 0.1% sodium pyruvate and 50 ppm of nalidixic acid. Survival data were fitted ...
DOI:
10.4315/0362-028X.JFP-18-438

11. Improvement in the radio frequency method to pasteurise shell eggs by automation and cost reduction

Author:
Deana R. Jones,   et al.   ; David J. Geveke; Andrew B. W. Bigley; Christopher D. Brunkhorst; Eric D. Tilman;     Show all 5 Authors
Source:
International journal of food science & technology 2018 v.53 no.11 pp. 2500-2508
ISSN:
0950-5423
Subject:
Salmonella Typhimurium; angel food cakes; automation; cost effectiveness; eggs; equipment; pasteurization; radio waves; tap water
Abstract:
... The existing radio frequency (RF) shell egg pasteurisation method, while 60% faster than the industrial hot water method, requires manual rotation of the eggs and expensive deionised water. Therefore, the RF pasteurisation equipment was redesigned to automate egg rotation and use inexpensive tap water. A two‐step process heated eggs for 6 min with RF and then for 15 min with 56.7 °C water. The 21‐ ...
DOI:
10.1111/ijfs.13843

12. Alternative Antimicrobial Commercial Egg Washing Procedures

Author:
Deana R. Jones,   et al.   ; Lauren K. Hudson; Mark A. Harrison; Mark E. Berrang;     Show all 4 Authors
Source:
Journal of food protection 2016 v.79 no.7 pp. 1216-1220
ISSN:
0362-028X
Subject:
Salmonella Enteritidis; Salmonella Typhimurium; alkali treatment; ambient temperature; chlorine; cost effectiveness; detergents; eggs; emulsions; energy costs; heat; industry; pH; packaging; pathogens; potassium; shelf life; washing
Abstract:
... Commercial table eggs are washed prior to packaging. Standard wash procedures use an alkaline pH and warm water. If a cool water method could be developed that would still provide a microbiologically safe egg, the industry may save energy costs associated with water heating. Four wash procedures were evaluated for Salmonella reduction: pH 11 at 48.9°C (industry standard), pH 11 at ambient temperat ...
DOI:
10.4315/0362-028X.JFP-15-423

13. Assessing the impact of egg sweating on Salmonella Enteritidis penetration into shell eggs

Author:
Deana R. Jones,   et al.   ; Janet A. Gradl; Patricia A. Curtis; Kenneth E. Anderson;     Show all 4 Authors
Source:
Poultry science 2017 v.96 no.7 pp. 2393-2399
ISSN:
0032-5791
Subject:
Salmonella Enteritidis; egg industry; egg shell; eggs; emulsions; nalidixic acid; peptones; poultry science; refrigeration; storage time; temperature
Abstract:
... Salmonella Enteritidis (SE) prevalence in eggs is a major concern to the egg industry. Some research has shown that egg sweating can increase Salmonella penetration into egg contents when refrigerated eggs are moved to a warmer temperature. This occurs when eggs are tempered before wash, to minimize thermal cracks. The effect of egg sweating on SE penetration into shell eggs over a 6 week storage ...
DOI:
10.3382/ps/pex011

14. Colonization of internal organs by Salmonella serovars Heidelberg and Typhimurium in experimentally infected laying hens housed in enriched colony cages at different stocking densities

Author:
Deana R. Jones,   et al.   ; Richard K. Gast; Rupa Guraya; Jean Guard; Kenneth E. Anderson; Darrin M. Karcher;     Show all 6 Authors
Source:
Poultry science 2017 v.96 no.5 pp. 1402-1409
ISSN:
0032-5791
Subject:
Salmonella Enteritidis; Salmonella Heidelberg; Salmonella Typhimurium; animal welfare; cages; cecum; humans; liver; oviducts; serotypes; spleen
Abstract:
... Contaminated eggs produced by infected commercial laying flocks are often implicated as sources of human infections with Salmonella Enteritidis, but Salmonella serovars Heidelberg and Typhimurium have also been associated with egg-transmitted illness. Contamination of the edible contents of eggs is a consequence of the colonization of reproductive tissues in systemically infected hens. In recent y ...
DOI:
10.3382/ps/pew375

15. Prevalence, Persistence, and Antimicrobial Resistance of Campylobacter spp. from Eggs and Laying Hens Housed in Five Commercial Housing Systems

Author:
Deana R. Jones,   et al.   ; Estefanía Novoa Rama; Matthew Bailey; Richard K. Gast; Ken Anderson; Jagpinder Brar; Rhonda Taylor; Haley F. Oliver; Manpreet Singh;     Show all 9 Authors
Source:
Foodborne pathogens & disease 2018 v.15 no.8 pp. 506-516
ISSN:
1556-7125
Subject:
Campylobacter coli; Campylobacter jejuni; animal welfare; antibiotic resistance; biosecurity; cages; consumer attitudes; egg production; eggs; farms; free range husbandry; genetic variation; laying hens; pathogens; polymerase chain reaction; pulsed-field gel electrophoresis; tetracycline; North Carolina
Abstract:
... Husbandry practices for laying hens in commercial egg production is a topic of interest from a social, economic, and regulatory standpoint. Animal welfare concerns regarding the use of conventional cages have arisen and consumer perceptions of hen welfare have led to a higher demand for cage-free eggs. The aim of this study was to assess the impact of housing systems on prevalence, persistence, an ...
DOI:
10.1089/fpd.2017.2404

16. Inactivation of Salmonella in Shell Eggs by Hot Water Immersion and Its Effect on Quality

Author:
Deana R. Jones,   et al.   ; David J. Geveke; Joshua B. Gurtler; Andrew B. W. Bigley;     Show all 4 Authors
Source:
Journal of food science 2016 v.81 no.3 pp. M709
ISSN:
0022-1147
Subject:
Food Safety and Inspection Service; Salmonella Enteritidis; cold storage; egg quality; eggs; heat inactivation; heat tolerance; hot water treatment; temperature; vitelline membrane
Abstract:
... Thermal inactivation kinetics of heat resistant strains of Salmonella Enteritidis in shell eggs processed by hot water immersion were determined and the effects of the processing on egg quality were evaluated. Shell eggs were inoculated with a composite of heat resistant Salmonella Enteritidis (SE) strains PT8 C405, 2 (FSIS #OB030832), and 6 (FSIS #OB040159). Eggs were immersed in a circulating ho ...
DOI:
10.1111/1750-3841.13233

17. Persistence of fecal shedding of Salmonella Enteritidis by experimentally infected laying hens housed in conventional or enriched cages

Author:
Deana R. Jones,   et al.   ; Richard K. Gast; Rupa Guraya; Kenneth E. Anderson;     Show all 4 Authors
Source:
Poultry science 2015 v.94 no.7 pp. 1650-1656
ISSN:
0032-5791
Subject:
Salmonella Enteritidis; animal welfare; bacteriophages; cages; feces; flocks; food safety; human diseases; intestines; pathogens; risk factors
Abstract:
... Salmonella Enteritidis can be deposited inside eggs laid by infected hens, so the prevalence of this pathogen in commercial egg-producing flocks is an important risk factor for human illness. Opportunities for the introduction, transmission, and persistence of salmonellae in poultry are potentially influenced by flock housing and management systems. Animal welfare concerns have spurred the develop ...
DOI:
10.3382/ps/pev113

18. Prediction modelling of storage time and quality measurements using visible-near infrared spectra of pasteurized shell eggs

Author:
Deana R. Jones,   et al.   ; Samantha A. Hawkins;     Show all 2 Author
Source:
Journal of food measurement & characterization 2013 v.7 no.3 pp. 101-106
ISSN:
2193-4126
Subject:
correlation; egg albumen; egg quality; eggs; infrared spectroscopy; models; pasteurization; prediction; regression analysis; shelf life; spectral analysis; storage time
Abstract:
... A 12 week study was conducted on the egg albumen from both pasteurized and non-pasteurized shell eggs using visible-near infrared spectroscopy. Prediction models of the chemical changes detected in the spectra to the measurement of Haugh units (measure of interior egg quality) were calculated using principal component regression analysis. Additionally, the study sought to determine how pasteurizat ...
DOI:
10.1007/s11694-013-9144-5

19. Frequency and Duration of Fecal Shedding of Salmonella Serovars Heidelberg and Typhimurium by Experimentally Infected Laying Hens Housed in Enriched Colony Cages at Different Stocking Densities

Author:
Deana R. Jones,   et al.   ; Richard K. Gast; Rupa Guraya; Jean Guard; Kenneth E. Anderson; Darrin M. Karcher;     Show all 6 Authors
Source:
Avian diseases 2017 v.61 no.3 pp. 366-371
ISSN:
0005-2086
Subject:
Salmonella Enteritidis; Salmonella Heidelberg; Salmonella Typhimurium; animal welfare; cages; eggs; feces; flocks; food safety; humans; laying hens; nesting; pathogens; poultry housing; salmonellosis; serotypes; stocking rate
Abstract:
... Eggs contaminated with Salmonella Enteritidis are leading sources of human salmonellosis, but Salmonella Heidelberg and Salmonella Typhimurium are also egg-associated pathogens. The management practices and housing facilities characterizing different systems for housing commercial egg flocks can influence Salmonella persistence and transmission. Animal welfare aspects of poultry housing have been ...
DOI:
10.1637/11635-032517-RegR

20. Colonization of internal organs by Salmonella Enteritidis in experimentally infected laying hens housed in enriched colony cages at different stocking densities

Author:
Deana R. Jones,   et al.   ; Richard K. Gast; Rupa Guraya; Kenneth E. Anderson; Darrin M. Karcher;     Show all 5 Authors
Source:
Poultry science 2016 v.95 no.6 pp. 1363-1369
ISSN:
0032-5791
Subject:
Salmonella Enteritidis; animal ovaries; animal welfare; cages; disease resistance; eggs; epidemiological studies; flocks; food safety; human diseases; laying hens; liver; nesting; pathogens; poultry housing; salmonellosis; serotypes; spleen; stocking rate; tissues
Abstract:
... Epidemiologic analyses have linked the frequency of human infections with Salmonella enterica subspecies enterica serovar Enteritidis to the consumption of contaminated eggs and thus to the prevalence of this pathogen in commercial egg-laying flocks. Contamination of the edible contents of eggs by Salmonella Enteritidis is a consequence of the colonization of reproductive tissues in systemically i ...
Handle:
10113/62810
DOI:
10.3382/ps/pew037