Skip to main content
ARS Home » Southeast Area » Mississippi State, Mississippi » Poultry Research » People & Locations » Joseph Purswell

Joseph L Purswell
Poultry Research
Agricultural Engineer

Phone: (662) 320-3024
Fax:

606 SPRING STREET
MISSISSIPPI STATE, MS 397620000
Projects
Systems Approach to Understanding and Mitigating Avian Escherichia coli Infections and Antimicrobial Resistance in the Poultry Environment
In-House Appropriated (D)
  Accession Number: 434880
Transmission, Pathogenesis, and Control of Avian Mycoplasmosis
In-House Appropriated (D)
  Accession Number: 432042
Enhancing Sustainability and Production Efficiency through Improved Management and Housing Design in Commercial Broilers
In-House Appropriated (D)
  Accession Number: 433602
Improving Efficiency of Growth and Nutrient Utilization in Heavy Broilers Using Alternatives to Antibiotic Growth Promoters
In-House Appropriated (D)
  Accession Number: 433611
Environmental Management and Animal Health as They Relate to Processing Yields and Food Safety of Broiler Meat and Table Eggs
Non-Assistance Cooperative Agreement (S)
  Accession Number: 433716
Nutrition and Management of Heavy Broilers: Emphasis on Gut Health Effects of Dietary and In Ovo Alternatives to Antibiotics
Non-Assistance Cooperative Agreement (S)
  Accession Number: 433292
Enhancing Resource Use Efficiency Through Improved Environmental Control in Poultry Housing
Non-Assistance Cooperative Agreement (S)
  Accession Number: 435238
Environmental Management Strategies for Improving Health and Well-being in Poultry Production
Non-Assistance Cooperative Agreement (S)
  Accession Number: 437218
Environmental Management Strategies for Improving Production Efficiency in Poultry Production
Non-Assistance Cooperative Agreement (S)
  Accession Number: 437259
Improving Production and Resource Use Efficiency in Commercial Poultry Production
Non-Assistance Cooperative Agreement (S)
  Accession Number: 437272
Effects of Environmental Conditions in Live Production on Production Efficiency and Product Quality in Commercial Poultry
Non-Assistance Cooperative Agreement (S)
  Accession Number: 438554
Effects of Rearing Conditions on Behavioral and Metabolic Responses of Poultry
Non-Assistance Cooperative Agreement (S)
  Accession Number: 438654
Improving Health and Well-being in Broiler Chickens Through Environmental Management
Non-Assistance Cooperative Agreement (S)
  Accession Number: 438905

Publications (Clicking on the reprint icon Reprint Icon will take you to the publication reprint.)
Effect of stocking density and dietary antimicrobial inclusion of male broilers grown to 35 days of age1 Part 2: Blood physiological variables - (Peer Reviewed Journal)
Olanrewaju, H.A., Purswell, J.L., Collier, S.D., Branton, S.L. 2020. Effect of stocking density and dietary antimicrobial inclusion of male broilers grown to 35 days of age1 Part 2: Blood physiological variables. International Journal of Poultry Science. 19:447-454.
Effect of stocking density and dietary antimicrobial inclusion of male broilers grown to 35 days of age1 Part 1: Biochemical and enzymatical variables Reprint Icon - (Peer Reviewed Journal)
Olanrewaju, H.A., Purswell, J.L., Collier, S.D., Branton, S.L. 2020. Effect of stocking density and dietary antimicrobial inclusion of male broilers grown to 35 days of age1 Part 1: Biochemical and enzymatical variables. International Journal of Poultry Science. 19:403-410. https://scialert.net/abstract/?doi=ijps.2020.403.410.
Characterizing light leakage and spatial variation of illuminance in commercial broiler houses during tunnel ventilation - (Peer Reviewed Journal)
Comparative evaluation of poultry-human and poultry-robot avoidance distances Reprint Icon - (Peer Reviewed Journal)
Parajuli, P., Huang, Y., Tabler, T., Purswell, J.L., Dubien, J.L., Zhao, Y. 2020. Comparative evaluation of poultry-human and poultry-robot avoidance distances. Transactions of the ASABE. 63(2):477-484. https://doi.org/10.13031/trans.13644.
Effects of antibiotic-free diet and stocking density on male broilers reared to 35 days of age. Part 2: Feeding and drinking behaviors of broilers Reprint Icon - (Peer Reviewed Journal)
Li, G., Zhao, Y., Purswell, J.L., Chesser, G.D., Lowe, J.W., Wu, T. 2020. Effects of antibiotic-free diet and stocking density on male broilers reared to 35 days of age. Part 2: Feeding and drinking behaviors of broilers. Journal of Applied Poultry Research. 29(2):391-401. https://doi.org/10.1016/j.japr.2020.01.002.
Research Note: Effect of feed form and feeder position on feed consumption patterns in male broilers Reprint Icon - (Peer Reviewed Journal)
Purswell, J.L., Kim, E.J., Branton, S.L. 2020. Research Note: Effect of feed form and feeder position on feed consumption patterns in male broilers. Transactions of the ASABE. 63(3):655-658. https://doi.org/10.13031/trans.13695.
Evaluation of field-stored switchgrass hay as litter material for broilers Reprint Icon - (Peer Reviewed Journal)
Purswell, J.L., Davis, J.D., Chesser, G.D., Lowe, J.W. 2020. Evaluation of field-stored switchgrass hay as litter material for broilers. Journal of Applied Poultry Research. 29(2):391-401. https://doi.org/10.1016/j.japr.2019.11.002.
FGD gypsum litter effects on gaseous losses from a broiler house Reprint Icon - (Peer Reviewed Journal)
Watts, D.B., Runion, G.B., Purswell, J.L., Torbert III, H.A., Davis, J.D. 2019. FGD gypsum litter effects on gaseous losses from a broiler house. International Journal of Poultry Science. 19:42-50. https://doi.org/10.3923/ijps.2020.42.50.
Interactive effects of light-sources, photoperiod, and strain on blood physiological variables of broilers grown to heavy weights - (Peer Reviewed Journal)
Olanrewaju, H.A., Purswell, J.L., Collier, S.D., Branton, S.L. 2020. Interactive effects of light-sources, photoperiod, and strain on blood physiological variables of broilers grown to heavy weights. International Journal of Poultry Science. 19(2):86-96. 10.3923/ijps.2020.86.96.
Interactive effects of light sources, photoperiod, and strains on growth performance, carcass characteristics and health indices of broilers grown to heavy weights Reprint Icon - (Peer Reviewed Journal)
Olanrewaju, H.A., Miller, W.W., Maslin, W.R., Collier, S.D., Purswell, J.L., Branton, S.L. 2019. Interactive effects of light sources, photoperiod, and strains on growth performance, carcass characteristics and health indices of broilers grown to heavy weights. Poultry Science. 98(12):6232-6240. https://doi.org/10.3382/ps/pez476.
Evaluation of biochar as a litter amendment for commercial broiler production Reprint Icon - (Peer Reviewed Journal)
Linhoss, J., Purswell, J.L., Street, J., Rowland, M. 2019. Evaluation of biochar as a litter amendment for commercial broiler production. Journal of Applied Poultry Research. 28(4):1089-1098. https://doi.org/10.3382/japr/pfz071..
An ultra-high frequency RFID system for studying individual feeding and drinking behaviors of group-housed broilers Reprint Icon - (Peer Reviewed Journal)
Li, G., Zhao, Y., Hailey, R., Zhang, N., Liang, Y., Purswell, J.L. 2019. An ultra-high frequency RFID system for studying individual feeding and drinking behaviors of group-housed broilers. Animal-The International Journal of Animal Biosciences. 13:(9)2060–2069. https://doi.org/10.1017/S1751731118003440.
Effect of light intensity adjusted for species-specific spectral sensitivity on blood physiological variables of male broiler chickens Reprint Icon - (Peer Reviewed Journal)
Olanrewaju, H.A., Purswell, J.L., Collier, S.D., Branton, S.L. 2019. Effect of light intensity adjusted for species-specific spectral sensitivity on blood physiological variables of male broiler chickens. Poultry Science. 98(3):1090-1095. https://doi.org/10.3382/ps/pey487.
Effects of light-sources and photoperiod on hemato-physiological indices of broilers grown to heavy weights - (Peer Reviewed Journal)
Olanrewaju, H.A., Collier, S.D., Purswell, J.L., Branton, S.L. 2019. Effects of light-sources and photoperiod on hemato-physiological indices of broilers grown to heavy weights. Poultry Science. 98(3):1075-1082.
Can flue gas desulfurization gypsum be used as a bedding material for broiler production? - (Abstract Only)
Watts, D.B., Purswell, J.L., Torbert III, H.A., Davis, J.D. 2019. Can flue gas desulfurization gypsum be used as a bedding material for broiler production? [abstract]. International Poultry Scientific Forum.
Performance of an automated whole-house spray vaccination system Reprint Icon - (Peer Reviewed Journal)
Purswell, J.L., Branton, S.L., Evans, J.D. 2019. Performance of an automated whole-house spray vaccination system. Avian Diseases. 28(1):215-220. https://doi.org/10.3382/japr/pfy060.
Effect of light intensity adjusted for species-specific spectral sensitivity on live performance and processing yield of male broiler chickens Reprint Icon - (Peer Reviewed Journal)
Purswell, J.L., Olanrewaju, H.A., Linhoss, J.E. 2018. Effect of light intensity adjusted for species-specific spectral sensitivity on live performance and processing yield of male broiler chickens. Journal of Applied Poultry Research. 27(4):570-576. https://doi.org/10.3382/japr/pfy034.
Water supply rates for recirculating evaporative cooling systems in poultry housing - (Peer Reviewed Journal)
Purswell, J.L., Linhoss, J.E., Edge, C., Davis, J.D., Campbell, J. 2018. Water supply rates for recirculating evaporative cooling systems in poultry housing. Applied Engineering in Agriculture. 34(3):581-590.
Influence of light-sources and photoperiod on growth performance, carcass characteristics and health indices of broilers grown to heavy weights - (Peer Reviewed Journal)
Olanrewaju, H.A., Miller, W.W., Maslin, W.R., Collier, S.D., Purswell, J.L., Branton, S.L. 2018. Influence of light-sources and photoperiod on growth performance, carcass characteristics and health indices of broilers grown to heavy weights. Poultry Science. 97(4):1109-1116.
Effect of fan induced photoperiod on live performance and yield of male broiler chickens - (Peer Reviewed Journal)
Purswell, J.L., Olanrewaju, H.A. 2017. Effect of fan induced photoperiod on live performance and yield of male broiler chickens. Journal of Applied Poultry Research. 26(2):236-239.
Effects of light ingress through ventilation fan apertures on selected blood variables of male broilers - (Peer Reviewed Journal)
Olanrewaju, H.A., Purswell, J.L., Collier, S.D., Branton, S.L. 2017. Effects of light ingress through ventilation fan apertures on selected blood variables of male broilers. International Journal of Poultry Science. 16(8):288-295.
Comparing radiant heater performance using spatial modeling Reprint Icon - (Peer Reviewed Journal)
Linhoss, J.E., Purswell, J.L., Davis, J.D., Zhaofei, F. 2017. Comparing radiant heater performance using spatial modeling. Applied Engineering in Agriculture. 33(3):395-405. https://doi.org/10.13031/aea.12108.
Assessing air velocity distribution in three sizes of commercial broiler houses during tunnel ventilation Reprint Icon - (Peer Reviewed Journal)
Luck, B.D., Davis, J.D., Purswell, J.L., Kiess, A.S., Hoff, S.J. 2017. Assessing air velocity distribution in three sizes of commercial broiler houses during tunnel ventilation. Applied Engineering in Agriculture. 60(4):1313-1323. https://doi.org/10.13031/trans.12107.
Application of a micro-aerosolized disinfectant to clear Mycoplasma gallisepticum from contaminated facilities - (Peer Reviewed Journal)
Evans, J.D., Branton, S.L., Collier, S.D., Brooks, J.P., Purswell, J.L. 2017. Application of a micro-aerosolized disinfectant to clear Mycoplasma gallisepticum from contaminated facilities. Journal of Applied Poultry Research. 26(3):416-420.
Interactive effects of ambient temperature and light sources at high relative humidity on growth performance and blood physiological variables in broilers grown to 42 day of age - (Peer Reviewed Journal)
Olanrewaju, H.A., Purswell, J.L., Collier, S.D., Branton, S.L. 2016. Interactive effects of ambient temperature and light sources at high relative humidity on growth performance and blood physiological variables in broilers grown to 42 day of age. International Journal of Poultry Science. 15(10):394-400.
Physiological responses of feedlot heifers provided access to different levels of shade - (Peer Reviewed Journal)
Brown-Brandl, T.M., Chitko-McKown, C.G., Eigenberg, R.A., Mayer, J.J., Welsh, T.H., Davis, J.D., Purswell, J.L. 2017. Physiological responses of feedlot heifers provided access to different levels of shade. Animal. 11(8):1344-1353. https://doi.org/10.1017/S1751731116002664.
Effects of light sources and intensity on broilers grown to heavy weights: Hematophysiological and biochemical assessment. - (Peer Reviewed Journal)
Olanrewaju, H.A., Purswell, J.L., Collier, S.D., Branton, S.L. 2016. Effects of light sources and intensity on broilers grown to heavy weights: Hematophysiological and biochemical assessment.. International Journal of Poultry Science. 15(10):384-393.
Evaluation of chopped switchgrass and chopped bermudagrass as litter materials over multiple heavy broiler flocks - (Peer Reviewed Journal)
Davis, J.D., Purswell, J.L., Kiess, A.S. 2015. Evaluation of chopped switchgrass and chopped bermudagrass as litter materials over multiple heavy broiler flocks. Journal of Applied Poultry Research. 24(3):343-351.
Development and characterization of a continuous tympanic temperature logging (CTTL) probe for bovine animals Reprint Icon - (Peer Reviewed Journal)
Mayer, J., Davis, J., Purswell, J.L., Koury, E., Younan, N., Larson, J., Brown-Brandl, T.M. 2016. Development and characterization of a continuous tympanic temperature logging (CTTL) probe for bovine animals. Transactions of the ASABE. 59(2):703-714. https://doi.org/10.13031/trans.59.11367.
Effects of light sources and intensity on broilers grown to heavy weights. Part 1: growth performance, carcass characteristics, and welfare indices - (Peer Reviewed Journal)
Olanrewaju, H.A., Miller, W.W., Maslin, W.R., Collier, S.D., Purswell, J.L., Branton, S.L. 2016. Effects of light sources and intensity on broilers grown to heavy weights. Part 1: growth performance, carcass characteristics, and welfare indices. Poultry Science. 95(4):727-735.
Influence of photoperiod, light intensity, and their interaction on health indices of modern broilers grown to heavy weights - (Peer Reviewed Journal)
Olanrewaju, H.A., Miller, W.W., Maslin, W.R., Collier, S.D., Purswell, J.L., Branton, S.L. 2015. Influence of photoperiod, light intensity, and their interaction on health indices of modern broilers grown to heavy weights. International Journal of Poultry Science. 14(4):183-190.
The impact of deposition site on vaccination efficiency of a bacterial-based poultry vaccine - (Peer Reviewed Journal)
Effects of color temperatures (kelvin) of led bulbs on blood physiological variables of broilers grown to heavy weights - (Peer Reviewed Journal)
Olanrewaju, H.A., Purswell, J.L., Collier, S.D., Branton, S.L. 2015. Effects of color temperatures (Kelvin) of LED bulbs on blood physiological variables of broilers grown to heavy weights. Poultry Science. 94:1721-1728.
Effect of air velocity on laying hen performance and egg quality - (Peer Reviewed Journal)
Purswell, J.L., Branton, S.L. 2015. Effect of air velocity on laying hen performance and egg quality. Transactions of the ASABE. 58(3):813-817.
Effects of increasing inclusion rates of a low-fat distillers dried grains with solubles (LF-DDGS) in finishing broiler diets - (Peer Reviewed Journal)
Kim, E.J., Purswell, J.L., Branton, S.L. 2016. Effects of increasing inclusion rates of a low-fat distillers dried grains with solubles (LF-DDGS) in finishing broiler diets. International Journal of Poultry Science. 15(5):182-187.
Effects of color temperatures (Kelvin) of LED bulbs on growth performance, carcass characteristics, and ocular welfare indices of broilers grown to heavy weights - (Peer Reviewed Journal)
Olanrewaju, H.A., Purswell, J.L., Maslin, W.R., Collier, S.D., Branton, S.L. 2015. Effects of color temperatures (Kelvin) of LED bulbs on growth performance, carcass characteristics, and ocular welfare indices of broilers grown to heavy weights. Poultry Science. 94:338-344.
Systematic evaluation of in-house broiler litter windrowing effects on production benefits and environmental impact - (Peer Reviewed Journal)
Liang, Y., Payne, J.B., Penn, C., Tabler, G.T., Watkins, S.E., Vandevender, K.W., Purswell, J.L. 2014. Systematic evaluation of in-house broiler litter windrowing effects on production benefits and environmental impact. Journal of Applied Poultry Research. 23:625-638.
Production characteristics of Hy-Line W36 laying hens hatched from white and tinted eggs - (Peer Reviewed Journal)
Kim, E.J., Purswell, J.L., Evans, J.D., Branton, S.L. 2014. Production characteristics of Hy-Line W36 laying hens hatched from white and tinted eggs. Poultry Science. 93(8):2123-2128.
Effects of strain and light intensity on growth performance and carcass characteristics of broilers grown to heavy weights - (Peer Reviewed Journal)
Olanrewaju, H.A., Miller, W.W., Maslin, W.R., Collier, S.D., Purswell, J.L., Branton, S.L. 2014. Effects of strain and light intensity on growth performance and carcass characteristics of broilers grown to heavy weights. Poultry Science. 93:1890-1899.
Effect of air deflectors on fan performance in tunnel-ventilated broiler houses with a dropped ceiling - (Peer Reviewed Journal)
Purswell, J.L., Luck, B.D., Davis, J.D. 2014. Effect of air deflectors on fan performance in tunnel-ventilated broiler houses with a dropped ceiling. Applied Engineering in Agriculture. 30(3):471-475.
Effects of genetic strain and light intensity on blood physiological variables of broilers grown to heavy weights - (Peer Reviewed Journal)
Olanrewaju, H.A., Purswell, J.L., Collier, S.D., Branton, S.L. 2014. Effects of genetic strain and light intensity on blood physiological variables of broilers grown to heavy weights. Poultry Science. 93:970-978.
Effects of air velocity on laying hen production from 24 to 27 weeks under simulated evaporatively cooled conditions - (Peer Reviewed Journal)
Purswell, J.L., Branton, S.L., Luck, B.D., Davis, J.D. 2013. Effects of air velocity on laying hen production from 24 to 27 weeks under simulated evaporatively cooled conditions. Transactions of the ASABE. 56(6):1503-1508.
Water holding capacity and evaporative loss from organic bedding materials used in livestock facilities - (Proceedings)
Spiehs, M.J., Brown-Brandl, T.M., Jaderborg, J.P., DiCostanzo, A., Purswell, J.L., Davis, J.D. 2013. Water holding capacity and evaporative loss from organic bedding materials used in livestock facilities. In: Proceedings of the American Society of Agricultural and Biological Engineers Annual International Meeting, July 21-24, 2013, Kansas City, MO. ASABE Paper No. 131595738.
Effects of air velocity on laying hen production - (Proceedings)
Purswell, J.L., Branton, S.L., Luck, B.D., Davis, J.D. 2013. Effects of air velocity on laying hen production. Proceedings of the American Society of Agricultural and Biological Engineers International (ASABE). ASABE Paper No. 131620737.
Live production and carcass characteristics of broilers fed a blend of poultry fat and corn oil derived from distiller’s dried grains with solubles (DDGS) - (Peer Reviewed Journal)
Kim, E.J., Purswell, J.L., Davis, J.D., Loar, R., Karges, K. 2013. Live production and carcass characteristics of broilers fed a blend of poultry fat and corn oil derived from distiller’s dried grains with solubles (DDGS). Poultry Science. 92(10):2732-2736.
Spatial variability of heating profiles in windrowed poultry litter - (Peer Reviewed Journal)
Schmidt, A.M., Davis, J.D., Purswell, J.L., Fan, Z., Kiess, A.S. 2013. Spatial variability of heating profiles in windrowed poultry litter. Journal of Applied Poultry Research. 22:319-328.
Improving commercial broiler attic inlet ventilation thorugh CFD analysis - (Proceedings)
Olsen, J.W., Davis, J.D., Purswell, J.L., Luck, B.D. 2013. Improving commercial broiler attic inlet ventilation thorugh CFD analysis. ASABE Paper No. ILE12-1382.
Air velocity distribution in a commercial broiler house - (Proceedings)
Luck, B.D., Davis, J.D., Purswell, J.L., Olsen, J.W. 2013. Air velocity distribution in a commercial broiler house. ASABE Paper No. ILES12-1339.
Effects of frequency of multiple applications of litter amendment on litter ammonia and live performance in a shared airspace - (Peer Reviewed Journal)
Purswell, J.L., Davis, J.D., Kiess, A.S., Coufal, C.D. 2013. Effects of frequency of multiple applications of litter amendment on litter ammonia and live performance in a shared airspace. Journal of Applied Poultry Research. 22:469-473.
Effects of frequency of multiple applications of litter amendment on litter ammonia and live performance in a shared airspace - (Peer Reviewed Journal)
Purswell, J.L., Davis, J.D., Kiess, A.S., Coufal, C.D. 2013. Effects of frequency of multiple applications of litter amendment on litter ammonia and live performance in a shared airspace. Journal of Applied Poultry Research. 22(3):469-473.
Effect of temperature-humidity index on live performance in broiler chickens grown from 49 to 63 days of age - (Proceedings)
Purswell, J.L., Dozier, III, W.A., Olanrewaju, H.A., Davis, J.D., Xin, H., Gates, R.S. 2013. Effect of temperature-humidity index on live performance in broiler chickens grown from 49 to 63 days of age. ASABE Paper No. ILES12-0265.
Interactive effects of photoperiod and light intensity on blood physiological and biochemical reactions of broilers grown to heavy weights - (Peer Reviewed Journal)
Olanrewaju, H.A., Purswell, J.L., Collier, S.D., Branton, S.L. 2013. Interactive effects of photoperiod and light intensity on blood physiological and biochemical reactions of broilers grown to heavy weights. Poultry Science. 92:1029-1039.
Using thermal imaging as a method of investigating thermal thresholds in finishing pigs - (Peer Reviewed Journal)
Brown Brandl, T.M., Eigenberg, R.A., Purswell, J.L. 2013. Using thermal imaging as a method of investigating thermal thresholds in finishing pigs. Biosystems Engineering. 114:327-333.
Influence of photoperiod, light intensity, and their interaction on growth performance and carcass characteristics of broilers grown to heavy weights - (Peer Reviewed Journal)
Olanrewaju, H.A., Purswell, J.L., Collier, S.D., Branton, S.L. 2012. Influence of photoperiod, light intensity, and their interaction on growth performance and carcass characteristics of broilers grown to heavy weights. International Journal of Poultry Science. 11(12):739-746.
Mycoplasma gallisepticum transmission: Comparison of commercial F-strain vaccine versus layer complex-derived field strains in a tunnel ventilated house - (Peer Reviewed Journal)
Purswell, J.L., Evans, J.D., Leigh, S.A., Collier, S.D., Olanrewaju, H.A., Kim, E.J., Pharr, G.T., Peebles, E.D., Branton, S.L. 2012. Mycoplasma gallisepticum transmission: Comparison of commercial F-strain vaccine versus layer complex-derived field strains in a tunnel ventilated house. Poultry Science. 91:3072-3079.
Automation in Animal Housing and Production ()
Purswell, J.L., Gates, R.S. 2013. Automation in Animal Housing and Production pp.205-230. In Q. Zhang and F.J. Pierce (eds.) Agricultural Automation: Fundamentals and Practices, CRC Press, 411pp.
Determining heat tolerance in finishing pigs using thermal imaging - (Proceedings)
Brown Brandl, T.M., Eigenberg, R.A., Purswell, J.L. 2012. Determining heat tolerance in finishing pigs using thermal imaging. In proceedings: International Livestock Symposium. Valencia, Spain, July 8-12, 2012. ASABE Paper No. 12-ILES1433.
Tunnel ventilation system design and management - (Proceedings)
Purswell, J.L. 2012. Tunnel ventilation system design and management. Proceedings of the North Carolina Broiler Supervisors Short Course, April 12, 2012.
Design and operation considerations for attic inlets - (Proceedings)
Purswell, J.L. 2012. Design and operation considerations for attic inlets. Proceedings of the North Carolina Broiler Supervisors Short Course, April 12, 2012.
A comparative study of live attenuated F strain-derived Mycoplasma gallisepticum vaccines - (Peer Reviewed Journal)
Evans, J.D., Leigh, S.A., Purswell, J.L., Jacob, R., Peebles, E.D., Collier, S.D., Branton, S.L. 2012. A comparative study of live attenuated F strain-derived Mycoplasma gallisepticum vaccines. Avian Diseases. 56:396-401.
Effect of varying light intensity on growth performance and carcass characteristics of broiler chickens grown to heavy weights - (Peer Reviewed Journal)
Olanrewaju, H.A., Purswell, J.L., Collier, S.D., Branton, S.L. 2011. Effect of varying light intensity on growth performance and carcass characteristics of broiler chickens grown to heavy weights. International Journal of Poultry Science. 10(12):921-926.
Effects of elevated carbon dioxide concentrations on broiler chicken performance from 28 to 49 days - (Peer Reviewed Journal)
Purswell, J.L., Davis, J.D., Luck, B.D., Kim, E.J., Olanrewaju, H.A., Kiess, A.S., Branton, S.L. 2011. Effects of elevated carbon dioxide concentrations on broiler chicken performance from 28 to 49 days. International Journal of Poultry Science. 10(8):597-602.
Effect of varying light intensity on blood physiological reactions of broiler chickens grown to heavy weights - (Peer Reviewed Journal)
Olanrewaju, H.A., Purswell, J.L., Collier, S.D., Branton, S.L. 2011. Effect of varying light intensity on blood physiological reactions of broiler chickens grown to heavy weights. International Journal of Poultry Science. 11(2):81-87.
Using electrical resistance probes for moisture determination in switchgrass windrows - (Proceedings)
Chesser, G.D., Davis, J.D., Purswell, J.L., Rowe, D., Lemus, R. 2011. Using electrical resistance probes for moisture determination in switchgrass windrows. Proceedings of the American Society of Agricultural and Biological Engineers International (ASABE). ASABE #1111253.
Effect of varying light intensity on welfare indices of broiler chickens grown to heavy weights - (Peer Reviewed Journal)
Olanrewaju, H.A., Miller, W.W., Maslin, W.R., Purswell, J.L., Collier, S.D., Branton, S.L. 2011. Effect of varying light intensity on welfare indices of broiler chickens grown to heavy weights. International Journal of Poultry Science. 10(8):590-596.
Evaluation of automotive mass airflow sensors for animal environment research and control - (Proceedings)
Purswell, J.L., Adams, W.C., Montross, M.D., Davis, J.D. 2011. Evaluation of automotive mass airflow sensors for animal environment research and control. International Symposium on Air Quality and Waste Management for Agriculture. ASABE #1110839.
Hatchability of Broiler Breeder Eggs Following Eggshell Sanitization by Repeated Treatment with a Combination of Ultraviolet Light and Hydrogen Peroxide - (Peer Reviewed Journal)
Wells, J.B., Coufal, C.D., Parker, H.M., Kiess, A.S., Purswell, J.L., Young, K.M., Mcdaniel, C.D. 2011. Hatchability of Broiler Breeder Eggs Following Eggshell Sanitization by Repeated Treatment with a Combination of Ultraviolet Light and Hydrogen Peroxide. International Journal of Poultry Science. 10(6):421-425.
Get the most out of your cooling system ()
Purswell, J.L. 2011. Get the most out of your cooling system. Emerging Trends: A newsletter of the Mississippi Poultry Association. 2011(2):14-15.
Serologic response of roosters to gradient dosage levels of a commercially available live F strain-derived Mycoplasma gallisepticum vaccine over time - (Peer Reviewed Journal)
Purswell, J.L., Evans, J.D., Branton, S.L. 2011. Serologic response of roosters to gradient dosage levels of a commercially available live F strain-derived Mycoplasma gallisepticum vaccine over time. Avian Diseases. 55(3):490-494.
Serologic response of roosters to gradient dosage levels of a commercially available live F strain-derived Mycoplasma gallisepticum vaccine over time - (Peer Reviewed Journal)
Purswell, J.L., Evans, J.D., Branton, S.L. 2011. Serologic response of roosters to gradient dosage levels of a commercially available live F strain-derived Mycoplasma gallisepticum vaccine over time. Avian Diseases. 55(3):490-494.
Assessment of air velocity sensors for use in animal produciton facilities - (Proceedings)
Luck, B.D., Purswell, J.L., Davis, J.D. 2011. Assessment of air velocity sensors for use in animal produciton facilities. Transactions of the ASABE. ASABE #1100003.
In-house Windrowing of a Commercial Broiler Farm During Summer Months and Its Effect on Litter Composition - (Peer Reviewed Journal)
Barker, K.J., Coufal, C.D., Purswell, J.L., Davie, J.D., Parker, H.M., Kidd, M.D., Mcdaniel, C.D., Kiess, A.S. 2011. In-house Windrowing of a Commercial Broiler Farm During Summer Months and Its Effect on Litter Composition. Journal of Applied Poultry Research. 20:168-180.
Thermal environment in a four-horse slant-load trailer - (Peer Reviewed Journal)
Purswell, J.L., Gates, R.S., Lawrence, L.M., Davis, J.D. 2010. Thermal environment in a four-horse slant-load trailer. Transactions of the ASABE. 53(6):1885-1894.
Effect of ambient temperature and light intensity on physiological reactions of heavy broiler chickens - (Peer Reviewed Journal)
Olanrewaju, H.A., Purswell, J.L., Collier, S.D., Branton, S.L. 2010. Effect of ambient temperature and light intensity on physiological reactions of heavy broiler chickens. Poultry Science. 89:2719-2725.
Influence of eye surface area on spray vaccination dosage rates - (Peer Reviewed Journal)
Purswell, J.L., Mayer, J.J., Evans, J.D., Branton, S.L., Davis, J.D. 2010. Eye surface area and dosage rates for spray vaccination. Avian Diseases. 54(4):1310-1315.
Eye surface area and dosage rates for spray vaccination - (Peer Reviewed Journal)
Purswell, J.L., Mayer, J.J., Evans, J.D., Branton, S.L., Davis, J.D. 2010. Eye surface area and dosage rates for spray vaccination. Avian Diseases. 54(4):1310-1315.
Effect of Ambient Temperature and Light Intensity on Growth Performance and Carcass Characteristics of Heavy Broiler Chickens at 56 days of age - (Peer Reviewed Journal)
Olanrewaju, H.A., Purswell, J.L., Collier, S.D., Branton, S.L. 2010. Effect of Ambient Temperature and Light Intensity on Growth Performance and Carcass Characteristics of Heavy Broiler Chickens at 56 days of age. International Journal of Poultry Science. 9(8):720-725.
Effect of moisture content on the heating profile in composted broiler litter - (Proceedings)
Schmidt, A.M., David, J.D., Purswell, J.L., Kiess, A.S. 2010. Effect of moisture content on the heating profile in composted broiler litter. International Symposium on Air Quality and Waste Management for Agriculture. ASABE #711PO510.
Analysis of the effect of spatial and temporal sampling densities on accuracy of predicting the heating profile in windrowed broiler litter - (Proceedings)
Schmidt, A.M., Davis, J.D., Purswell, J.L., Fan, Z., Kiess, A.S. 2010. Analysis of the effect of spatial and temporal sampling densities on accuracy of predicting the heating profile in windrowed broiler litter. International Symposium on Air Quality and Waste Management for Agriculture. ASABE #711P0510.
Attic Inlet Technology Update ()
Donald, J., Purswell, J.L., Simpson, G., Campbell, J. 2010. Attic Inlet Technology Update. Poultry Engineering, Economics, and Management Newsletter. Issue No 66.
A chronicle of serologic response in commercial layer chickens to vaccination with commercial F strain Mycoplasma gallisepticum vaccine - (Peer Reviewed Journal)
Branton, S.L., Leigh, S.A., Purswell, J.L., Evans, J.D., Collier, S.D., Olanrewaju, H.A., Pharr, G.T. 2010. A chronicle of serologic response in commercial layer chickens to vaccination with commercial F strain Mycoplasma gallisepticum vaccine. Avian Diseases. 54(3):1108-1111.
Evaluation of Chopped Switchgrass as a Litter Material - (Peer Reviewed Journal)
Davis, J.D., Purswell, J.L., Columbus, E.P., Kiess, A.S. 2010. Evaluation of Chopped Switchgrass as a Litter Material. International Journal of Poultry Science. 9(1): 39-42.
Distribution of Bacteria at Different Poultry Litter Depths - (Peer Reviewed Journal)
Barker, K.J., Purswell, J.L., Davis, J., Parker, H.M., Kidd, M.T., Mcdaniel, C.D., Kiess, A.S. 2010. Distribution of Bacteria at Different Poultry Litter Depths. International Journal of Poultry Science. 9(1): pp 10-13.
Application of 3D Scanned Imaging Methodology for Volume, Surface Area, and Envelope Density Evaluation of Densified Biomass - (Peer Reviewed Journal)
Igathinathane, C., Davis, J.D., Purswell, J.L., Columbus, E.P. 2010. Application of 3D Scanned Imaging Methodology for Volume, Surface Area, and Envelope Density Evaluation of Densified Biomass. Bioresource Technology. 101 pp 4220-4227.
Effects of air velocity on broiler production - (Proceedings)
Purswell, J.L. 2009. Effects of air velocity on broiler production. IFAC/CIGR Workshop . CD 1.
Determination of densified biomass mass properties using 3D laser scanning and image analysis - (Proceedings)
Igathinathane, C., Davis, J.D., Purswell, J.L., Columbus, E.P. 2009. Determination of densified biomass mass properties using 3D laser scanning and image analysis. Proceedings of the American Society of Agricultural and Biological Engineers International (ASABE). ASABE #BIO-097995.
Digestible Lysine Requirements of Male Broilers From 14 to 28 Days of Age Subjected to Different Environmental Conditions - (Peer Reviewed Journal)
Dozier, W.A., Corzo, A., Kidd, M.T., Tillman, P.B., Purswell, J.L., Kerr, B.J. 2009. Digestible Lysine Requirements of Male Broilers From 14 to 28 Days of Age Subjected to Different Environmental Conditions. Journal of Applied Poultry Research. 18:690-698.
Age-related Effects of Varying Ammonia Concentrations on Hematophysiological Variables in Broiler Chickens - (Peer Reviewed Journal)
Olanrewaju, H.A., Purswell, J.L., Collier, S.D., Branton, S.L. 2009. Age-related Effects of Varying Ammonia Concentrations on Hematophysiological Variables in Broiler Chickens. International Journal of Poultry Science. 8(2):138-144.
EFFECTS OF BROILER REARING ENVIRONMENT ON TRANSMISSION OF F-STRAIN MYCOPLASMA GALLISEPTICUM FROM COMMERCIAL LAYER HENS TO BROILER CHICKENS: ROLE OF ACID-BASE BALANCE - (Peer Reviewed Journal)
Olanrewaju, H.A., Purswell, J.L., Collier, S.D., Branton, S.L. 2009. Effects of Broiler Rearing Environment on Transmission of F-Strain Mycoplasma gallisepticum From Commercial Layer Hens to Broiler Chickens: Role of Acid-Base Balance. Avian Diseases 8(2):145-150.
Micosoft Excel Sensitivity Analysis for Linear and Stochastic Program Feed Formulation - (Peer Reviewed Journal)
Roush, W.B., Purswell, J.L., Branton, S.L. 2009. Micosoft Excel Sensitivity Analysis for Linear and Stochastic Program Feed Formulation. Journal of Applied Poultry Research 13(1):85-89.
Recent Advances in Mycoplasma gallisepticum Vaccine Administration ()
Branton, S.L., Leigh, S.A., Purswell, J.L. 2008. Recent Advances in Mycoplasma gallisepticum Vaccine Administration. Feed and Livestock Magazine 5(4):28-31.
Effects of System Pressure and Nozzle Type on Spray Application of Avian Vaccines - (Peer Reviewed Journal)
Purswell, J.L., Fritz, B.K., Branton, S.L., Leigh, S.A. 2008. Effects of System Pressure and Nozzle Type on Spray Application of Avian Vaccines. Applied Engineering in Agriculture 24(6):785-789.
GROWTH PERFORMANCE AND PHYSIOLOGICAL VARIABLES FOR BROILER CHICKENS SUBJECTED TO SHORT-TERM ELEVATED CARBON DIOXIDE CONCENTRATIONS - (Peer Reviewed Journal)
Olanrewaju, H.A., Dozier III, W.A., Purswell, J.L., Branton, S.L., Miles, D.M., Lott, B.D., Pescatore, A.J., Thaxton, J.P. 2008. Growth performance and physiological variables for broiler chickens subjected to short-term elevated carbon dioxide concentrations. International Journal of Poultry Science. 7(8):738-742.
Actuated Attic Inlets: A Progress Report ()
Campbell, J., Purswell, J.L., Simpson, G., Donald, J. 2008. Actuated Attic Inlets: A Progress Report. Poultry Engineering, Economics, and Management Newsletter. pp. 1-9.
Attic inlet technology ()
Campbell, J., Simpson, G., Donald, J., Macklin, K., Purswell, J.L. 2008. Attic inlet technology. Poultry Engineering, Economics, and Management Newsletter. Issue No 54.
Interactive effects of ammonia and light intensity on hematochemical variables in broiler chickens - (Peer Reviewed Journal)
Olanrewaju, H.A., Thaxton, J.P., Dozier III, W.A., Purswell, J.L., Collier, S.D., Branton, S.L. 2008. Interactive effects of ammonia and light intensity on hematochemical variables in broiler chickens. Poultry Science. 87:1407-1414.
Assessing Thermal Comfort of Broiler Chicks During Brooding - (Peer Reviewed Journal)
Purswell, J.L., Lott, B.D., Dozier III, W.A., Roush, W.B., Branton, S.L. 2008. Assessing Thermal Comfort of Broiler Chicks During Brooding. International Journal of Poultry Science 7(3):202-206.
Effect of selected water temperatures used in Mycoplasma gallisepticum vaccine reconstitution on titer at selected time intervals - (Peer Reviewed Journal)
Branton, S.L., Leigh, S.A., Roush, W.B., Purswell, J.L., Olanrewaju, H.A., Collier, S.D. 2008. Effect of selected water temperatures used in Mycoplasma gallisepticum vaccine reconstitution on color change units at selected time intervals. Avian Diseases. 52:291-296.
Construction of a Low Cost Globe Thermometer - (Peer Reviewed Journal)
Purswell, J.L., Davis, J.D. 2008. Construction of a Low Cost Globe Thermometer. Applied Engineering in Agriculture. 24(3):379-381.
INTERACTIVE EFFECTS OF AMMONIA AND LIGHT INTENSITY ON OCULAR, FEAR AND LEG HEALTH IN BROILER CHICKENS - (Peer Reviewed Journal)
Olanrewaju, H.A., Miller, W.W., Maslin, W.R., Thaxton, J.P., Dozier III, W.A., Purswell, J.L., Branton, S.L. 2007. Interactive effects of ammonia and light intensity on ocular, fear and leg health in broiler chickens. International Journal of Poultry Science. 6(10):762-769.
AN ADJUSTABLE NUTRIENT MARGIN OF SAFETY COMPARISON USING LINEAR AND STOCHASTIC PROGRAMMING IN AN EXCEL SPREADSHEET - (Peer Reviewed Journal)
Roush, W.B., Purswell, J.L., Branton, S.L. 2007. An adjustable nutrient margin of safety comparison using linear and stochastic programming in an excel spreadsheet. Journal of Applied Poultry Research. 16:514-520.
Identifying Process Variables for a Low Atmospheric Pressure Stunning/Killing System - (Peer Reviewed Journal)
Purswell, J.L., Thaxton, J.P., Branton, S.L. 2007. Identifying Process Variables for a Low Atmospheric Pressure Stun/Kill System. Journal of Applied Poultry Research. 16:509-513.
Heating poultry houses with an attic ventilation system - (Proceedings)
Purswell, J.L., Lott, B.D. 2007. Heating poultry houses with an attic ventilation system. Biological Engineering (ASABE). ASABE #074125.
Apparent Metabolizable Energy Needs of Broilers from 2.0 to 4.0 kg as Influenced by Ambient Temperature - (Peer Reviewed Journal)
Dozier III, W.A., Purswell, J.L., Kidd, M.T., Corzo, A., Branton, S.L. 2007. Apparent Metabolizable Energy Needs of Broilers from 2.0 to 4.0 kg as Influenced by Ambient Temperature. Journal of Applied Poultry Research. 16:206-218.
APPARENT METABOLIZABLE ENERGY NEEDS OF BROILERS FROM 2.0 TO 4.0 KG AS INFLUENCED BY AMBIENT TEMPERATURE - (Peer Reviewed Journal)
Dozier III, W.A., Purswell, J.L., Kidd, M., Corzo, A., Branton, S.L. 2007. Apparent metabolizable energy needs of broilers from 2.0 to 4.0 kg as influenced by ambient temperature. Journal of Applied Poultry Research. 16:206-218.
Stocking desnsity effects on male broilers grown to 1.8 kilograms of body weight - (Peer Reviewed Journal)
Dozier III, W.A., Thaxton, J.P., Purswell, J.L., Olanrewaju, H.A., Branton, S.L., Roush, W.B. 2006. Stocking desnsity effects on male broilers grown to 1.8 kilograms of body weight. Poultry Science. 85:344-351.
A review of lighting programs for broiler production - (Peer Reviewed Journal)
Olanrewaju, H.A., Thaxton, J.P., Dozier III, W.A., Purswell, J.L., Roush, W.B., Branton, S.L. 2006. A review of lighting programs for broiler production. International Journal of Poultry Science. 5(4):301-308.
GROWTH RESPONSES OF MALE BROILERS SUBJECTED TO HIGH AIR VELOCITY AT EITHER 12 OR 24 HOURS FROM 37 TO 51 DAYS OF AGE - (Peer Reviewed Journal)
Dozier III, W.A., Purswell, J.L., Branton, S.L. Growth responses of male broilers subjected to high air velocity at either 12 or 24 hours from 37 to 51 days of age. Journal of Applied Poultry Research.
Assessing thermal comfort of broiler chicks during brooding - (Proceedings)
Purswell, J.L., Lott, B.D., Dozier Iii, W.A., Roush, W.B., Branton, S.L. 2006. Assessing thermal comfort of broiler chicks during brooding. Biological Engineering (ASABE). ASABE Paper 064014.
ARS News Articles