Research Project: Evaluation of Management of Laying Hens and Housing Systems to Control Salmonella and Other Pathogenic Infections, Egg Contamination, and Product Quality

Location: Egg and Poultry Production Safety Research Unit

Publications (Clicking on the reprint icon will take you to the publication reprint.)

Impact of organic dairy cattle manure on environmental and egg microbiology of organic free-range layer flocks. - (Peer Reviewed Journal)
Garcia, J.S., Anderson, K., Guard, J.Y., Gast, R.K., Jones, D.R. 2021. Influence of sustainable grazing on environmental and egg microbiology of organic free-range layer flocks. Journal of Applied Poultry Research. https://doi.org/10.1016/j.japr.2021.100189.

Egg carton and eggshell: is there a possibility of Salmonella cross-contamination - (Peer Reviewed Journal)
Regmi, P., Jones, D.R., Gast, R.K., Guraya, R., Karcher, D. 2021. Egg carton and eggshell: is there a possibility of Salmonella cross-contamination. Applied Poultry Research. 30:100185.

Equivalency of peroxyacetic acid to chlorine as a shell egg sanitizing rinse. - (Peer Reviewed Journal)
Jones, D.R., Garcia, J.S., Gast, R.K., Ward, G.E. 2021. Equivalency of peroxyacetic acid to chlorine as a shell egg sanitizing rinse. Poultry Science. https://doi.org/10.1016/j.psj.2021.101069.

Understanding egg removal system sanitation - (Other)
Jones, D.R., Hendricks, J., Barajas, V., Warnock, J., Karcher, D. 2021. Understanding egg removal system sanitation. Popular Publication. https://www.youtube.com/playlist?list=PLtXSf1tu3Jd-FMRe0wIQYnOyAFpTakk-I.

Understanding egg transfer system sanitation. - (Other)
Jones, D.R., Hendricks, J., Barajas, V., Warnock, J., Karcher, D. 2021. Understanding egg transfer system sanitation. Popular Publication. https://www.youtube.com/playlist?list=PLtXSf1tu3Jd-FMRe0wIQYnOyAFpTakk-I.

Understanding egg carriage system sanitation - (Other)
Jones, D.R., Hendricks, J., Barajas, V., Warnock, J., Karcher, D. 2021. Understanding egg carriage system sanitation. Popular Publication. https://www.youtube.com/playlist?list=PLtXSf1tu3Jd-FMRe0wIQYnOyAFpTakk-I.

Understanding egg packer system sanitation - module 1 - (Other)
Jones, D.R., Hendricks, J., Barajas, V., Warnock, J., Karcher, D. 2021. Understanding egg packer system sanitation - module 1. Popular Publication. https://www.youtube.com/playlist?list=PLtXSf1tu3Jd-FMRe0wIQYnOyAFpTakk-I.

Clean from the start = success at the finish! - (Popular Publication)
Jones, D.R., Alvarado, C. 2021. Clean from the start = success at the finish!. Food Safety Magazine. https://www.food-safety.com/articles/6992-egg-production-clean-from-the-start-success-at-the-finish.

Internal organ colonization and horizontal transmission of experimental Salmonella Enteritidis and Salmonella Kentucky infection in vaccinated laying hens in indoor cage-free housing. - (Peer Reviewed Journal)
Gast, R.K., Jones, D.R., Guraya, R., Anderson, K.E., Karcher, D.M. 2021. Internal organ colonization and horizontal transmission of experimental Salmonella Enteritidis and Salmonella Kentucky infection in vaccinated laying hens in indoor cage-free housing. Journal of Applied Poultry Research. 30:100132.

Horizontal transmission and internal organ colonization by Salmonella Enteritidis and Salmonella Kentucky in experimentally infected laying hens in indoor cage-free housing. - (Peer Reviewed Journal)
Gast, R.K., Jones, D.R., Guraya, R., Anderson, K.E., Karcher, D.M. 2020. Horizontal transmission and internal organ colonization by Salmonella Enteritidis and Salmonella Kentucky in experimentally infected laying hens in indoor cage-free housing. Poultry Science. 99:6071-6074.

Equivalency of peracetic acid to chlorine as a shell egg surface sanitizer. - (Abstract Only)
Jones, D.R., Garcia, J.S., Gast, R.K., Ward, G. 2020. Equivalency of peracetic acid to chlorine as a shell egg surface sanitizer. Poultry Science. 99(1):259.

Understanding egg drying equipment sanitation. - (Other)
Jones, D.R., Hendricks, J., Barajas, V., Karcher, D. 2020. Understanding egg drying equipment sanitation.. Extension Publications. https://www.youtube.com/watch?v=hJgxrnHTDAA&list=PLtXSf1tu3Jd-FMRe0wIQYnOyAFpTakk-I&index=7&t=0s.

Understanding egg sanitizing systems sanitation - (Other)
Jones, D.R., Hendricks, J., Barajas, V., Karcher, D.M. 2020. Understanding egg sanitizing systems sanitation. Extension Publications. https://www.youtube.com/watch?v=t8Jxu5Hk1TA&list=PLtXSf1tu3Jd-FMRe0wIQYnOyAFpTakk-I&index=6&t=0s.

Horizontal transmission of Salmonella Enteritidis and Salmonella Kentucky in experimentally infected laying hens in indoor cage-free housing. - (Abstract Only)
Gast, R.K., Jones, D.R., Guraya, R., Anderson, K.E., Karcher, D.M. 2020. Horizontal transmission of Salmonella Enteritidis and Salmonella Kentucky in experimentally infected laying hens in indoor cage-free housing. Poultry Science Association Meeting Abstract. Poultry Science 99 (E-Suppl.1):122 (2020).

Understanding egg farm belt sanitation. - (Other)
Jones, D.R., Hendricks, J., Barajas, V., Heitschmidt, J., Karcher, D.M. 2020. Understanding egg farm belt sanitation. Extension Publications. https://www.youtube.com/playlist?list=PLtXSf1tu3Jd-FMRe0wIQYnOyAFpTakk-I.

Understanding egg washer sanitation. - (Other)
Jones, D.R., Hendricks, J., Barajas, V., Heitschmidt, J., Karcher, D.M. 2020. Understanding egg washer sanitation. Extension Publications. https://www.youtube.com/playlist?list=PLtXSf1tu3Jd-FMRe0wIQYnOyAFpTakk-I.

Introduction to shell egg processing facility pre-op sanitation inspection. - (Other)
Jones, D.R., Hendricks, J., Barajas, V., Perigen, M., Karcher, D.M. 2020. Introduction to shell egg processing facility pre-op sanitation inspection. Extension Publications. https://www.youtube.com/watch?v=wu4vj4rCCec&list=PLtXSf1tu3Jd-FMRe0wIQYnOyAFpTakk-I&index=3&t=0s . https://www.youtube.com/watch?v=wu4vj4rCCec&list=PLtXSf1tu3Jd-FMRe0wIQYnOyAFpTakk-I&index=3&t=0s.

Understanding egg accumulator sanitation. - (Other)
Jones, D.R., Hendricks, J., Barajas, V., Perigen, M., Karcher, D. 2020. Understanding egg accumulator sanitation.. Extension Publications. https://www.youtube.com/watch?v=Ablu8_t0zmo&list=PLtXSf1tu3Jd-FMRe0wIQYnOyAFpTakk-I&index=4&t=0s .

Pooling of laying hen environmental swabs and efficacy of Salmonella spp. detection - (Peer Reviewed Journal)
Jones, D.R., Gast, R.K., Regmi, P., Ward, G.E., Anderson, K.E., Karcher, D.M. 2020. Pooling of laying hen environmental swabs and efficacy of Salmonella spp. detection. Journal of Food Protection. 83(6):943-950.

Colonization of internal organs by Salmonella Enteritidis and Salmonella Kentucky in experimentally infected laying hens in indoor cage-free housing. - (Abstract Only)
Gast, R.K., Guraya, R., Jones, D.R., Anderson, K.E., Karcher, D.M. 2020. Colonization of internal organs by Salmonella Enteritidis and Salmonella Kentucky in experimentally infected laying hens in indoor cage-free housing. American Association of Avian Pathologists. Proceedings of American Association of Avian Pathologists Annual Meeting, p.10.

Institutional Policies - (Book / Chapter)
Anderson, K., Hill, G., Jones, D.R., Aaron, D., Lents, C., Murray, J. 2020. Institutional Policies. Book Chapter. Guide for the Care and Use of Agricultural Animals in Research and Teaching, 4th Edition.

Salmonella control in egg-laying chickens - (Proceedings)
Gast, R.K. 2019. Salmonella control in egg-laying chickens. Proceedings of Shell Egg Academy. pp.20-39.

What are the needs of the U.S. table egg industry? - (Abstract Only)
Karcher, D.M., Muhammed, A., Jones, D.R., Garrison, O., Vold, L. 2019. What are the needs of the U.S. table egg industry?. Poultry Science Association Meeting Abstract. 98(1):125.

Pooling of laying hen housing system environmental swabs and efficacy of Salmonella spp. detection - (Abstract Only)
Jones, D.R., Gast, R.K., Regmi, P., Ward, G.E., Anderson, K.E., Karcher, D.M. 2019. Pooling of laying hen housing system environmental swabs and efficacy of Salmonella spp. detection. Poultry Science. 98(1):205.

Impact of northern fowl mites on cage-free layer performance from 17 to 48 weeks of age - (Abstract Only)
Jarrett, R.A., Erasmus, M.A., Jones, D.R., Van De Water, K., Murillo, A.C., Karcher, D.M. 2019. Impact of northern fowl mites on cage-free layer performance from 17 to 48 weeks of age. Poultry Science Association Meeting Abstract. 98(1):125.

Assessment of Current Egg Density Methods - (Abstract Only)
Oxford, L., Aranibar, C., Jones, D.R., Wilson, J. 2019. Assessment of Current Egg Density Methods. Poultry Science Association Meeting Abstract. 98(1):162.

Salmonella Enteritidis contamination of eggs from experimentally infected laying hens of four commercial genetic lines housed in conventional cages and enriched colonies. - (Abstract Only)
Gast, R.K., Regmi, P., Guraya, R., Jones, D.R., Anderson, K., Karcher, D.M. 2019. Salmonella Enteritidis contamination of eggs from experimentally infected laying hens of four commercial genetic lines housed in conventional cages and enriched colonies. Poultry Science Association Meeting Abstract. 98(1):206.

Contamination of eggs by Salmonella Enteritidis in experimentally infected laying hens of four commercial genetic lines in conventional cages and enriched colony housing. - (Peer Reviewed Journal)
Gast, R.K., Regmi, P., Guraya, R., Jones, D.R., Anderson, K.E., Karcher, D.M. 2019. Contamination of eggs by Salmonella Enteritidis in experimentally infected laying hens of four commercial genetic lines in conventional cages and enriched colony housing. Poultry Science. 98:5023-5027.

Salmonella Enteritidis invasion of internal organs and contamination of eggs from experimentally infected laying hens of four commercial genetic lines. - (Abstract Only)
Gast, R.K., Regmi, P., Guraya, R., Jones, D.R., Anderson, K.E., Karcher, D.M. 2019. Salmonella Enteritidis invasion of internal organs and contamination of eggs from experimentally infected laying hens of four commercial genetic lines. American Association of Avian Pathologists. p. 55.

Microbiological impact of delayed movement of pullets - (Peer Reviewed Journal)
Eberle-Krish, K., Jones, D.R., Gast, R.K., Robinson, C.I., Anderson, K.E., Karcher, D.M. 2019. Microbiological impact of delayed movement of pullets. Journal of Applied Poultry Research. 20(2):318-328.

Production and well-being resulting from delayed movement of pullets to the hen facility. - (Peer Reviewed Journal)
Karcher, D.M., Jones, D.R., Robinson, C.I., Eberle-Krish, K., Gast, R.K., Anderson, K. 2019. Production and well-being resulting from delayed movement of pullets to the hen facility. Journal of Applied Poultry Research. 28(2):278-289.

Colonization of internal organs by Salmonella Enteritidis in experimentally infected laying hens of four commercial genetic lines in conventional cages and enriched colony housing . - (Peer Reviewed Journal)
Gast, R.K., Regmi, P., Guraya, R., Jones, D.R., Anderson, K., Karcher, D.M. 2019. Colonization of internal organs by Salmonella Enteritidis in experimentally infected laying hens of four commercial genetic lines in conventional cages and enriched colony housing. Poultry Science. 98:1785-1790.

Prevalence, persistence and antimicrobial resistance of Campylobacter spp. from eggs and laying hens housed in five commercial housing systems. - (Peer Reviewed Journal)
Novoa Rama, E., Bailey, M., Jones, D.R., Gast, R.K., Anderson, K., Brar, J., Taylor, R., Oliver, H.F., Singh, M. 2018. Prevalence, persistence and antimicrobial resistance of Campylobacter spp. from eggs and laying hens housed in five commercial housing systems. Foodborne Pathogens and Disease. 15:506-516.

Early molting of layers: Impact on egg shape and shell quality - (Abstract Only)
Miller, A.M., Jones, D.R., Robinson, C., Regmi, P., Eberle, K., Karcher, D.M. 2018. Early molting of layers: Impact on egg shape and shell quality. Poultry Science Association Meeting Abstract. 97:14.

Incorporation of welfare assessment on layer performance test: 3 genotypes in 4 different housing systems - (Abstract Only)
Regmi, P., Anderson, K.E., Karcher, D.M., Jones, D.R. 2018. Incorporation of welfare assessment on layer performance test: 3 genotypes in 4 different housing systems. Poultry Science Association Meeting Abstract. 97:149.

The impact of cage-free housing system on horizontal transmission of Salmonella in eggs - (Abstract Only)
Ward, G.E., Jones, D.R., Gast, R.K., Anderson, K., Thippareddi, H., Singh, M. 2018. The impact of cage-free housing system on horizontal transmission of Salmonella in eggs. Poultry Science Association Meeting Abstract. 97:65.

Introduction to HACCP. - (Proceedings)
Jones, D.R. 2018. Introduction to HACCP. National Egg Quality School Proceedings. pp. 225 – 232.

Dispelling myths about eggs. - (Proceedings)
Jones, D.R. 2018. Dispelling myths about eggs.National Egg Quality School Proceedings. pp. 367 – 375.

Effects of different litter substrates and induced molt on production performance and welfare quality parameters of white Leghorn hens housed in multi-tiered aviary system. - (Peer Reviewed Journal)
Regmi, P., Robinson, C., Jones, D.R., Gast, R.K., Tempelman, R.J., Karcher, D.M. 2018. Effects of different litter substrates and induced molt on production performance and welfare quality parameters of white Leghorn hens housed in multi-tiered aviary system. Poultry Science. 97:3397-3404.

Colonization of internal organs by Salmonella Enteritidis in experimentally infected laying hens of four commercial genetic lines in conventional cage and enriched colony housing - (Abstract Only)
Gast, R.K., Regmi, P., Guraya, R., Jones, D.R., Anderson, K., Karcher, D. 2018. Colonization of internal organs by Salmonella Enteritidis in experimentally infected laying hens of four commercial genetic lines in conventional cage and enriched colony housing. Poultry Science Association Meeting Abstract. 97: (E-Suppl.1): 112.

Multiplication in egg yolk and survival in egg albumen of genetically and phenotypically characterized Salmonella Enteritidis strains - (Peer Reviewed Journal)
Gast, R.K., Guard, J.Y., Guraya, R., Locatelli, A. 2018. Multiplication in egg yolk and survival in egg albumen of genetically and phenotypically characterized Salmonella Enteritidis strains. Journal of Food Protection. 81:876-880.

Salmonellosis. Diagnosis of major poultry diseases - (Book / Chapter)
Gast, R.K., Waltman, D.W. 2018. Salmonellosis. Diagnosis of major poultry diseases. Y.J. Saif and H. Toro, eds.pp. 55-59. Servet Publishing, Zaragoza, Spain.

Control and monitoring of Salmonella in egg-laying chickens - (Proceedings)
Gast, R.K. 2018. Control and monitoring of Salmonella in egg-laying chickens. Proceedings of the Australian Poultry Science Symposium. 29:88-96.

Impact of egg handling and conditions during extended storage on egg quality - (Peer Reviewed Journal)
Jones, D.R., Ward, G.E., Regmi, P., Karcher, D.M. 2018. Impact of egg handling and conditions during extended storage on egg quality. Poultry Science. 97:716-723.

Salmonella infections - (Book / Chapter)
Gast, Richard K. and Robert E. Porter, Jr., 2020. Salmonella infections. Pages 719-753 in Diseases of Poultry, 14th edition. D. E. Swayne, ed. John Wiley and Sons, Hoboken, New Jersey.

Review of egg-related salmonellosis and reduction strategies - (Peer Reviewed Journal)
Chousalker, K., Gast, R.K., Martelli, F., Soboleva, T., Pande, V. 2018. Review of egg-related salmonellosis and reduction strategies. Critical Reviews in Microbiology. 44:290-293.

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 - (Peer Reviewed Journal)
Gast, R.K., Guraya, R., Jones, D.R., Guard, J.Y., Anderson, K.E., Karcher, D.M. 2017. 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. Avian Diseases. 61:366-371.

Early Molting of Layers: Impact on production and well-being - (Abstract Only)
Karcher, D.M., Jones, D.R., Robison, C.I., Regmi, P., Eberle, K.N. 2017. Early Molting of Layers: Impact on production and well-being. Poultry Science Association Meeting Abstract. 96:81.

Effect of chromium oxide on egg quality parameters in white Leghorns - (Abstract Only)
Regmi, P., Leszcz, J., Robison, C.I., Jones, D.R., Karcher, D.M. 2017. Effect of chromium oxide on egg quality parameters in white Leghorns. Poultry Science Association Meeting Abstract. 96:202.

Assessing the impact of early production molting of pullets on the prevalence of Salmonella, Campylobacter, and Enterobacteriaceae - (Abstract Only)
Eberle, K.N., Jones, D.R., Gast, R.K., Robison, C.I., Anderson, K., Karcher, D. 2017. Assessing the impact of early production molting of pullets on the prevalence of Salmonella, Campylobacter, and Enterobacteriaceae. Poultry Science Association Meeting Abstract. 96:21.

Evaluation of commercial cage-free barn egg quality during early production. - (Abstract Only)
Ward, G.E., Jones, D.R., Gast, R.K., Harshavardhan, T., Anderson, K. 2017. Evaluation of commercial cage-free barn egg quality during early production. Poultry Science Association Meeting Abstract. 96:26.

Laying hen strain influences skeletal morphology and keel fracture prevalence in multi-tier aviary system - (Abstract Only)
Regmi, P., Jones, D.R., Gast, R.K., Karcher, D. 2017. Laying hen strain influences skeletal morphology and keel fracture prevalence in multi-tier aviary system. Poultry Science Association Meeting Abstract. 96:35.

A new turn: assessing the shape of the avian egg - (Abstract Only)
Jones, D.R., Karcher, D.M. 2017. A new turn: assessing the shape of the avian egg. Poultry Science Association Meeting Abstract. 96:89.

Cage-free aviary egg functionality: impact of hen strain and cold storage - (Abstract Only)
Jones, D.R., Karcher, D.M., Regmi, P., Robison, C.I., Gast, R.K. 2017. Cage-free aviary egg functionality: impact of hen strain and cold storage. Poultry Science Association Meeting Abstract. 96:89.

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 - (Abstract Only)
Gast, R.K., Guraya, R., Jones, D.R., Guard, J.Y., Anderson, K., Karcher, D.M. 2017. 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. Poultry Science Association Meeting Abstract.

Egg processing plant sanitation, SSOPs, and GMPs. - (Proceedings)
Jones, D.R. 2017. Egg processing plant sanitation, SSOPs, and GMPs. National Egg Quality School Proceedings. pp. 425 – 449.

Introduction to HACCP. - (Proceedings)
Jones, D.R. 2017. Introduction to HACCP. National Egg Quality School Proceedings. pp. 450 – 457.

Dispelling myths about eggs. - (Proceedings)
Jones, D.R. 2017. Dispelling myths about eggs. National Egg Quality School Proceedings. pp. 577 – 585.

Frequency and duration of fecal shedding of Salmonella Enteritidis by experimentally infected laying hens housed in enriched colony cages at different stocking densities. - (Peer Reviewed Journal)
Gast, R.K., Guraya, R., Jones, D.R., Anderson, K.E., Karcher, D.M. 2017. Frequency and durationn of fecal shedding of Salmonella Enteritidis by experimentally infected laying hens housed in enriched colony cages at different stocking densities. Frontiers in Veterinary Science. 4:47.

Identifying and responding to factors that can affect egg quality and appearance - (Research Technical Update)
Anderson, K., Jones, D.R., Karcher, D.M. 2017. Identifying and responding to factors that can affect egg quality and appearance. North Carolina State Extension Publications. AG-169.https://content.ces.ncsu.edu/factors that can affect egg quality and appearance.

Hen genetic strain and extended cold storage implications on physical egg quality from cage-free aviary housing system. - (Peer Reviewed Journal)
Jones, D.R., Karcher, D., Regmi, P., Robison, C.O., Gast, R.K. 2018. Hen genetic strain and extended cold storage implications on physical egg quality from cage-free aviary housing system. Poultry Science. 97: 2347-2355.

Foodborne Salmonella control - (Book / Chapter)
Hofacre, Charles, L., Randall Singer, and Richard K. Gast, 2017. Foodborne Salmonella control. In: A Practical Guide for Biosecurity in the Poultry Industry, 2nd edition. Jacksonville, FL. Robert L. Owen, ed., pp. 53-59.

The effects of laying hen housing systems on egg safety and quality. In: Achieving sustainable production of eggs, Vol 1: Safety and Quality - (Book / Chapter)
Jones, D.R. 2017. The effects of laying hen housing systems on egg safety and quality. In: Achieving sustainable production of eggs, Vol 1: Safety and Quality. Book Chapter. p.195-210.

The effects of housing systems for laying hens on egg safety and quality - (Book / Chapter)
Jones, D.R. 2017. The effects of housing systems for laying hens on egg safety and quality. In Achieving Sustainable Production of eggs: Volume 1: Safety and Quality, J. Roberts, Ed. Burleigh Dodds, Cambridge, UK. p.195-210.

Assessing the impact of egg sweating on Salmonella Enteritidis penetration into shell eggs - (Peer Reviewed Journal)
Gradl, J.A., Curtis, P.A., Jones, D.R., Anderson, K.E. 2017. Assessing the impact of egg sweating on Salmonella Enteritidis penetration into shell eggs. Poultry Science. 96:2393-2399.

Frequency and persistence of fecal shedding of Salmonella Enteritidis by experimentally infected laying hens housed in enriched colony cages at different stocking densities - (Abstract Only)
Gast, R.K., Guraya, R., Jones, D.R., Anderson, K., Karcher, D.M. 2016. Frequency and persistence of fecal shedding of Salmonella Enteritidis by experimentally infected laying hens housed in enriched colony cages at different stocking densities. International Poultry Scientific Forum.

Sampling and detection of Salmonella in eggs - (Book / Chapter)
Gast, R.K. 2017. Sampling and detection of Salmonella in eggs. In Achieving Sustainable Production of eggs: Volume 1: Safety and Quality, J. Roberts, Ed. Burleigh Dodds, Cambridge, UK. p.141-160.

Colonization of internal organs by Salmonella serovars Heidelberg and Typhimurium in experimentally infected laying hens housed in enriched colony cages at different stocking densities - (Peer Reviewed Journal)
Gast, R.K., Guraya, R., Jones, D.R., Guard, J.Y., Anderson, K.E., Karcher, D.M. 2017. Colonization of internal organs by Salmonella serovars Heidelberg and Typhimurium in experimentally infected laying hens housed in enriched colony cages at different stocking densities. Poultry Science. 96:1402-1409.

Food crystallization and eggs. - (Proceedings)
Jones, D.R. 2016. Food crystallization and eggs. National Egg Products School Proceedings. pp. 11.1-11.8.

Colonization of internal organs by Salmonella serovars Heidelberg and Typhimurium in experimentally infected laying hens housed in enriched colony cages at different stocking densities - (Abstract Only)
Gast, R.K., Guraya, R., Jones, D.R., Guard, J.Y., Anderson, K.E., Karcher, D. 2016. Colonization of internal organs by Salmonella serovars Heidelberg and Typhimurium in experimentally infected laying hens housed in enriched colony cages at different stocking densities. Poultry Science Association Meeting Abstract. Paper No. 72.

Introduction to HACCP. - (Proceedings)
Jones, D.R. 2016. Introduction to HACCP. National Egg Quality School Proceedings. pp. 277 – 284.

Dispelling myths about eggs. - (Proceedings)
Jones, D.R. 2016. Dispelling myths about eggs. National Egg Quality School Proceedings. pp. 402 – 410.

Determining Haugh units. - (Proceedings)
Jones, D.R. 2015. Determining Haugh units. National Egg Quality School Proceedings. pp.346-348.

The principles of HACCP. - (Proceedings)
Jones, D.R. 2015. The principles of HACCP. National Egg Quality School Proceedings. pp. 412 – 416.

Answering consumer questions. - (Proceedings)
Jones, D.R., Alvarado, C. 2015. Answering consumer questions. National Egg Quality School Proceedings. pp. 666 – 670.

Food crystallization and eggs. - (Proceedings)
Jones, D.R. 2014. Food crystallization and eggs.. National Egg Products School Proceedings. pp. 11.1-11.8.