Dr. H Khoo, DVM, PhD

Professor & Director

Email: lhk2@msstate.edu
Office: 189 TCNWAC

Areas of Specialization

Fish diseases; pathology

Education

North Carolina State UniversityRaleigh
Doctor of Philosophy (Ph.D.)
Immunology

University Of Pennsylvania
Doctor of Veterinary Medicine (D.V.M.)
Veterinary Medicine

University of Guelph
Bachelor of Science (B.S.)
Biological Sciences

Publications

2024

LaFrentz, B. R., Khoo, L. H., Lawrence, M. L., Petrie-Hanson, L., Hanson, L. A., Baumgartner, W. A., Hemstreet, W. G., Kelly, A. M., García, J. C., Shelley, J. P., Johnston, A. E., Bruce, T. J., Griffin, M. J. 2024. Flavobacterium covae is the predominant species of columnaris-causing bacteria impacting the Channel Catfish industry in the southeastern United States. Journal of aquatic animal health 36(1):3-15.

2023

Gunn, M. A., Ott , B. D., Rosser, T. G., Khoo, L. H., Wise, D. J., Allen, P. J. 2023. Physiological response of channel (Ictalurus punctatus) and hybrid (I. punctatus x I. furcatus) catfish following Bolbophorus damnificus infection. Aquaculture 563:1-8.

Stilwell, J., Camus, A., Ware, C., Walker, C., Stanton, J., Leary, J., Khoo, L. H., Wise, D. J., Waldbieser, G., Griffin, M. J. 2023. Influence of channel catfish and channel x blue catfish hybrids on myxozoan community composition in catfish aquaculture ponds. North American Journal of Aquaculture 85(3):241-251.

2022

Aarattuthodi, S., Dharan, V., Khoo, L. H., Bosworth, B. 2022. Establishment and characterization of a cell line from ictalurid catfish. Journal of the World Aquaculture Society. Download

Dharan, V. K., Khoo, L. H., Phelps, N. B., Karunakaran, G., Steadman, J., Bosworth, B., Aarattuthodi, S. 2022. An investigation into the pathogenesis of blue catfish alloherpesvirus in ictalurid catfish. Journal of World Aquaculture Society 53(2):384-400. Download

Gunn, M. A., Griffin, M. J., Ott, B. D., Rosser, T. G., Khoo, L. H., Wise, D. J., Allen, P. J. 2022. Physiological response of channel (Ictalurus punctatus) and hybrid (I. punctatus x I. furcatus) catfish following Bolbophorus damnificus infection. Aquaculture 563:739016. Download

Stilwell, J., Griffin, M. J., Waldbieser, G., Stanton, J. B., Ware, C., Leary, J. H., Khoo, L. H., Wise, D. J., Camus, A. 2022. Myxozoan community composition and diversity in clinical cases of proliferative gill disease in Mississippi catfish aquaculture. Journal of Parasitology 108(2):132-140.

Woodyard, E., Rosser, T. G., Stilwell, J., Camus, A., Khoo, L., Waldbierser, G., Lorenz, W. W., Griffin, . 2022. New data on Henneguya postexilis Minchew, 1977, a parasite of channel catfish Ictalurus punctatus, with notes on resolution of molecular markers for myxozoan phylogeny. Systematic Parasitology 99(1):41-62. Download

2021

Gunn, M. A., Allen, P. J., Rosser, T. G., Wise, D. J., Khoo, L. H., Griffin, M. J. 2021. Assessment of Bolbophorus damnificus prevalence and cercariae shedding in Planorbella trivolvis populations from catfish aquaculture ponds in Mississippi, USA. Journal of the World Aquaculture Society 52(2):395-404. Download

2020

Aarattuthodi, S., Griffin, M. J., Greenway, T. E., Khoo, L. H., Byars, T. S., Lewis, M., Steadman, J., Wise, D. J. 2020. An orally delivered, live-attenuated Edwardsiella ictaluri vaccine efficiently protects channel catfish fingerlings against multiple Edwardsiella ictaluri field isolates. Journal of the World Aquaculture Society 51(6):1354-1372. Download

Karunakaran, G., Wise, D. J., Li, M. H., Aarattuthodi, S., Hegde, S., Rutland, B., Pruitt, S., Griffin, M. J., Khoo, L. H. 2020. Effect of understocking density of channel catfish fingerlings in intensively aerated multiple-batch production. Journal of the World Aquaculture Society 52(1):30-40. Download

Wise, D. J., Greenway, T. E., Byars, T. S., Karunakaran, G., Griffin, M. J., Khoo, L. H., Chesser, G. D., Lowe, J. W. 2020. Validation of Edwardsiella ictaluri oral vaccination platform in experimental pond trials. Journal of the World Aquaculture Society 51(2):346-363. Download

2019

Griffin, M. J., Reichley, S. R., Baumgartner, W. A., Aarattuthodiyil, B., Ware, C., Steadman, J. M., Lewis, M., Gaunt, P. S., Khoo, L. H., Wise, D. J. 2019. Emergence of Edwardsiella piscicida in farmed Channel ♀, Ictalurus punctatus × Blue ♂, Ictalurus furcatus, hybrid catfish cultured in Mississippi. Journal of the World Aquaculture Society 50 (2):420-432. Download

Karunakaran, G., Byars, T. S., Greenway, T. E., Aarattuthodi, S., Khoo, L. H., Griffin, M. J., Wise, D. J. 2019. Economic assessment of commercial-scale Edwardsiella ictaluri vaccine trials in U.S. catfish industry. Aquaculture Economics & Management 23(3):254-275. Download

Karunakaran, G., Li, M. H., Wise, D. J., Mischke, C. C., Rutland, B., Tiwari, A., Aarattuthodi, S., Griffin, M. J., Khoo, L. H., Ott, B., Torrans, L., Tucker, C. S. 2019. Performance of Channel catfish and Hybrid catfish in single‐batch, intensively aerated ponds. North American Journal of Aquaculture 81(4):406-416. Download

Rosser, T. G., Khoo, L. H., Wise, D. J., Mischke, C. C., Greenway, T. E., Alberson, N. R., Reichley, S. R., Woodyard, E. T., Steadman, J., Ware, C., Pote, L. M., Griffin, M. J. 2019. Arrested development of Henneguya ictaluri (Cnidaria: Myxobolidae) in ♀ channel catfish x ♂ blue catfish hybrids. Journal of Aquatic Animal Health 31(2):201-213. Download

Stilwell, J. M., Camus, A. C., Leary, J. H., Khoo, L. H., Griffin, M. J. 2019. Pathologic changes associated with respiratory compromise and morbidity due to massive interlamellar Henneguya exilis infection in channel$\times$ blue hybrid catfish. Journal of Parasitology 105(5):686--692.

2018

Griffin, M. J., Khoo, L. H., Reichley, S. R., Ware, C., Rosser, T. G., Alberson, N. R., Woodyard, E. T., Pote, L. M., Greenway, T. E., Tiwari, A., Mischke, C. C., Wise, D. J. 2018. Encapsulation of Bolbophorus damnificus (Digenea: Bolbophoridae) metacercariae in juvenile channel catfish, Ictalurus punctatus, is linked to delayed-onset mortality. Journal of the World Aquaculture Society 49(3):601-611. Download

Reichley, S. R., Ware, C., Khoo, L. H., Greenway, T. E., Wise, D. J., Bosworth, B., Lawrence, M. L., Griffin, M. J. 2018. Comparative Susceptibility of Channel Catfish, Ictalurus punctatus; Blue Catfish, Ictalurus furcatus; and Channel (♀) × Blue (♂) Hybrid Catfish to Edwardsiella piscicida, Edwardsiella tarda, and Edwardsiella anguillarum. . Journal of the World Aquaculture Society 49(1):197-204. Download

Reichley, S. R., Ware, C., Khoo, L. H., Greenway, T. E., Wise, D. J., Bosworth, B. G., Lawrence, M. L., Griffin, M. J. 2018. Comparative susceptibility of channel catfish, ictalurus punctatus; blue catfish, ictalurus furcatus; and channel (♀)$\times$ blue (♂) hybrid catfish to Edwardsiella piscicida, Edwardsiella tarda, and Edwardsiella anguillarum. Journal of the World Aquaculture Society 49(1):197--204.

2017

Alberson, N. R., Rosser, T. G., Buddenborg, S. K., Khoo, L. H., Loker, E. S., Richardson, T. D., Woodyard, E. T., Wise, D. J., Pote, L. M., Griffin, M. J. 2017. North and South American Haplotypes of Drepanocephalus auritus (Digenea: Echinostomatidae) Are Released from Biomphalaria havanensis (Mollusca: Planorbidae) Inhabiting Catfish Aquaculture Ponds in Mississippi, U.S.A. Comparative Parasitology 84(2):87-101. Download

Alberson, N. R., Rosser, T. G., Buddenborg, S. K., Khoo, L. H., Loker, E. S., Richardson, T. D., Woodyard, E. T., Wise, D. J., Pote, L. M., Griffin, M. J. 2017. North and South American haplotypes of Drepanocephalus auritus (Digenea: Echinostomatidae) are released from Biomphalaria havanensis (Mollusca: Planorbidae) inhabiting catfish aquaculture ponds in Mississippi, USA. Comparative Parasitology 84(2):87--101.

Griffin, M. J., Khoo, L. H., Rosser, T. G., Alberson, N., Reichley, S. R., Greenway, T. E., Wise, D. J., Pote, L. M. 2017. Mortality associated with acute development of Bolbophorus damnificus (Digenea: Bolbophoridae) in juvenile channel catfish Ictalurus punctatus. Journal of World Aquaculture Society.

Reichley, S. R., Ware, C., Khoo, L. H., Greenway, T. E., Wise, D. J., Bosworth, B., Lawrence, M. L., Griffin, M. J. 2017. Comparative Susceptibility of Channel Catfish, Ictalurus punctatus; Blue Catfish, Ictalurus furcatus; and Channel (♀) × Blue (♂) Hybrid Catfish to Edwardsiella piscicida, Edwardsiella tarda, and Edwardsiella anguillarum. . Journal of the World Aquaculture Society. Download

Reichley, S. R., Ware, C., Steadman, J., Gaunt, P. S., García, J. C., LaFrentz, B. R., Thachil, A., Waldbieser, G. C., Stine, C. B., Buján, N., Arias, C. R., Loch, T., Welch, T. J., Cipriano, R. C., Greenway, T. E., Khoo, L. H., Wise, D. J., Lawrence, M. L., Griffin, M. J. 2017. Comparative phenotypic and genotypic analysis of Edwardsiella isolates from different hosts and geographic origins, with emphasis on isolates formerly classified as E. tarda, and evaluation of diagnostic methods. Journal of Clinical Microbiology 55(12):3466-3491. Download

2016

Rosser, T. G., Alberson, N. R., Khoo, L. H., Woodyard, E. T., Wise, D. J., Pote, L. M., Griffin, M. J. 2016. Biomphalaria havanensis is a Natural First Intermediate Host for the Trematode Bolbophorus damnificus in Commercial Catfish Production in Mississippi. North American Journal of Aquaculture 78(3):189-192. Download

Rosser, T. G., Alberson, N. R., Khoo, L. H., Woodyard, E. T., Pote, L. M., Griffin, M. J. 2016. Characterization of the Life Cycle of a Fish Eye Fluke, Austrodiplostomum ostrowskiae (Digenea: Diplostomidae), with Notes on Two Other Diplostomids Infecting Biomphalaria havanensis (Mollusca: Planorbidae) from Catfish Aquaculture Ponds in Mississippi, USA. Journal of Parasitology 102(2):260-274. Download

Rosser, T. G., Khoo, L. H., Pote, L. M., Griffin, M. J. 2016. Verrucous dermal henneguyosis associated with Henneguya exilis (Kudo, 1929) (Cnidaria: Myxobolidae), a parasite of the channel catfish Ictalurus punctatus (Rafinesque, 1818). Journal of fish diseases 39(10):1263-1267. Download

Rosser, T. G., Alberson, N. R., Khoo, L. H., Woodyard, E. T., Wise, D. J., Pote, L. M., Griffin, M. J. 2016. Biomphalaria havanensis is a natural first intermediate host for the trematode Bolbophorus damnificus in commercial catfish production in Mississippi. North American Journal of Aquaculture 78(3):189--192.

Rosser, T. G., Alberson, N. R., Khoo, L. H., Woodyard, E. T., Pote, L. M., Griffin, M. J. 2016. Characterization of the life cycle of a fish eye fluke, Austrodiplostomum ostrowskiae (Digenea: Diplostomidae), with notes on two other diplostomids infecting Biomphalaria havanensis (Mollusca: Planorbidae) from catfish aquaculture ponds in Mississippi, USA. Journal of Parasitology 102(2):260--274.

2015

Allen, P. J., Wise, D. J., Greenway, T., Khoo, L. H., Griffin, M. J., Jablonsky, M. 2015. Using 1-D 1 H and 2-D 1 H J-resolved NMR metabolomics to understand the effects of anemia in channel catfish (Ictalurus punctatus). Metabolomics 11(5):1131-1143. Download

Rosser, T. G., Griffin, M. J., Quiniou, S. M., Khoo, L. H., Greenway, T. E., Wise, D. J., Pote, L. M. 2015. Small subunit ribosomal RNA sequence links the myxospore stage of Henneguya mississippiensis n. sp. from channel catfish Ictalurus punctatus to an actinospore released by the benthic oligochaete Dero digitata. Parasitology research 114(4):1595-602.

Scott, S. J., Griffin, M. J., Quiniou, S., Khoo, L. H., Bollinger, T. K. 2015. Myxobolus neurophilus Guilford 1963 (Myxosporea: Myxobolidae): a common parasite infecting yellow perch Perca flavescens (Mitchell, 1814) in Saskatchewan, Canada. Journal of fish diseases 38(4):355-64.

Wise, D. J., Greenway, T. E., Byars, T. S., Griffin, M. J., Khoo, L. H. 2015. Oral Vaccination of Channel Catfish against Enteric Septicemia of Catfish Using a Live Attenuated Edwardsiella ictaluri Isolate. Journal of aquatic animal health 27(2):135-43.

2014

Camus, A. C., Wise, D. J., Khoo, L. H., Shi, J., Berghaus, R. D. 2014. Iron status of channel catfish Ictalurus punctatus affected by channel catfish anemia and response to parenteral iron. Diseases of aquatic organisms 107(3):241-8.

Griffin, M. J., Khoo, L. H., Steadman, J. M., Ware, C., Quiniou, S. M., Mischke, C. C., Greenway, T. E., Wise, D. J. 2014. Chronic pathology and longevity of Drepanocephalus spathans infections in juvenile Channel Catfish. Journal of aquatic animal health 26(4):210-8.

Griffin, M. J., Reichley, S. R., Khoo, L. H., Ware, C., Greenway, T. E., Mischke, C. C., Wise, D. J. 2014. Comparative susceptibility of Channel Catfish, Blue Catfish, and their hybrid cross to experimental challenge with Bolbophorus damnificus (Digenea: Bolbophoridae) cercariae. Journal of aquatic animal health 26(2):96-9.

Griffin, M. J., Ware, C., Quiniou, S. M., Steadman, J. M., Gaunt, P. S., Khoo, L. H., Soto, E. 2014. Edwardsiella piscicida identified in the Southeastern USA by gyrB sequence, species-specific and repetitive sequence-mediated PCR. Diseases of aquatic organisms 108(1):23-35.

Khoo, L. H., Austin, F. W., Quiniou, S. M., Gaunt, P. S., Riecke, D. K., Jacobs, A. M., Meals, K. O., Dunn, A. W., Griffin, M. J. 2014. Lactococcosis in Silver Carp. Journal of aquatic animal health 26(1):1-8.

Rosser, T. G., Griffin, M. J., Quiniou, S. M., Khoo, L. H., Pote, L. M. 2014. 18S rRNA gene sequencing identifies a novel species of Henneguya parasitizing the gills of the channel catfish (Ictaluridae). Parasitology research 113(12):4651-8.

Rosser, T. G., Griffin, M. J., Quiniou, S. M., Greenway, T. E., Khoo, L. H., Wise, D. J., Pote, L. M. 2014. Molecular and morphological characterization of myxozoan actinospore types from a commercial catfish pond in the Mississippi delta. The Journal of parasitology 100(6):828-39.

Scott, S., Griffin, M. J., Quiniou, S., Khoo, L. H., Bollinger, T. 2014. Myxobolus neurophilus Guilford (Myxosporea: Myxobolidae): a common parasite infecting yellow perch Perca flavacens (Mitchell, 1814) in Saskatchewan, Canada. J Fish Dis.

2013

Hossain, M. J., Waldbieser, G. C., Sun, D., Capps, N. K., Hemstreet, W. B., Carlisle, K., Griffin, M. J., Khoo, L. H., Goodwin, A. E., Sonstegard, T. S., Schroeder, S., Hayden, K., Newton, J. C., Terhune, J. S., Liles, M. R. 2013. Implication of lateral genetic transfer in the emergence of Aeromonas hydrophila isolates of epidemic outbreaks in channel catfish. PloS one 8(11):e80943.

Manning, B. B., Griffin, M. J., Khoo, L. H., Wise, D. J., Greenway, T. E. 2013. Palatability of diets for channel catfish that contain Amprolium or Salinomycin using feed conversion ratio as the criterion. North American Journal of Aquaculture 75(1):99–101.

Tekedar, H. C., Waldbieser, G. C., Karsi, A., Liles, M. R., Griffin, M. J., Vamenta, S., Sonstegard, T., Hossain, M., Schroeder, S. G., Khoo, L. H., Lawrence, M. L. 2013. Complete Genome Sequence of a Channel Catfish Epidemic Isolate, Aeromonas hydrophila Strain ML09-119. Genome announcements 1(5).

Wise, D. J., Li, M. H., Griffin, M. J., Robinson, E. H., Khoo, L. H., Greenway, T. E., Byars, T. S., Walker, J. R., Mischke, C. C. 2013. Impacts of Bolbophorus damnificus (Digenea: Bolbophoridae) on Production Characteristics of Channel Catfish, Ictalurus punctatus, Raised in Experimental Ponds. Journal of the World Aquaculture Society 44(4):557–564.

2012

Griffin, M. J., Khoo, L. H., Quiniou, S. M., O'Hear, M. M., Pote, L. M., Greenway, T. E., Wise, D. J. 2012. Genetic sequence data identifies the cercaria of Drepanocephalus spathans (Digenea: Echinostomatidae), a parasite of the double-crested cormorant (Phalacrocorax auritus), with notes on its pathology in juvenile channel catfish (Ictalurus punctatus). The Journal of parasitology 98(5):967-72.

2011

Griffin, M. J., Mauel, M. J., Greenway, T. E., Khoo, L. H., Wise, D. J. 2011. A real-time polymerase chain reaction assay for quantification of Edwardsiella ictaluri in catfish pond water and genetic homogeneity of diagnostic case isolates from Mississippi. Journal of aquatic animal health 23(4):178-88.

Khoo, L. H., Goodwin, A. E., Wise, D. J., Holmes, W. E., Hanson, L. A., Steadman, J. M., McIntyre, L. M., Gaunt, P. S. 2011. The pathology associated with visceral toxicosis of catfish. Journal of veterinary diagnostic investigation : official publication of the American Association of Veterinary Laboratory Diagnosticians, Inc 23(6):1217-21.

Khoo, L. H., Wise, D. J., Pote, L. M., Mitchell, A. J., Byars, T. S., Yost, M. C., Doffitt, C. M., Dorr, B., George, B. A., King, D. T., others, . 2011. Ameliorating the effects of the digenetic trematode, Bolbophorus damnificus on the channel catfish industry. .

2010

Griffin, M. J., Wise, D. J., Yost, M. C., Doffitt, C. M., Pote, L. M., Greenway, T. E., Khoo, L. H. 2010. A duplex real-time polymerase chain reaction assay for differentiation between Bolbophorus damnificus and Bolbophorus type II species cercariae. Journal of veterinary diagnostic investigation : official publication of the American Association of Veterinary Laboratory Diagnosticians, Inc 22(4):615-22.

Khoo, L. H., Rommel, F. A., Smith, S. A., Griffin, M. J., Pote, L. M. 2010. Myxobolus neurophilus: morphologic, histopathologic and molecular characterization. Diseases of aquatic organisms 89(1):51-61.

2009

Griffin, M. J., Khoo, L. H., Torrans, L., Bosworth, B. G., Quiniou, S. M., Gaunt, P. S., Pote, L. M. 2009. New data on Henneguya pellis (Myxozoa: Myxobolidae), a parasite of blue catfish Ictalurus furcatus. The Journal of parasitology 95(6):1455-67.

Li, M. H., Robinson, E. H., Tucker, C. S., Manning, B. B., Khoo, L. H. 2009. Effects of dried algae Schizochytrium sp., a rich source of docosahexaenoic acid, on growth, fatty acid composition, and sensory quality of channel catfish Ictalurus punctatus. Aquaculture 292(3):232–236.

2008

Wise, D. J., Griffin, M. J., Terhune, J. S., Pote, L. M., Khoo, L. H. 2008. Induction and evaluation of proliferative gill disease in channel catfish fingerlings. Journal of aquatic animal health 20(4):236-44.

2006

Goodwin, A., Khoo, L. H., Lapatra, S., Bonar, C., Key, D., Garner, M., Lee, M., Hanson, L. 2006. Goldfish Hematopoietic Necrosis Herpesvirus (Cyprinid herpesvirus 2) in the USA: Molecular Confirmation of Isolates from Diseased Fish. Journal of Aquatic Animal Health 18:11–18.

Wagner, B. A., Wise, D. J., Khoo, L. H., Terhune, J. S. 2006. The Epidemiology of Bacterial Diseases in Food-Size Channel Catfish. Journal of aquatic animal health 18(4):263-72.

2005

Thompson, D. J., Khoo, L. H., Wise, D. J., Hanson, L. A. 2005. Evaluation of channel catfish virus latency on fingerling production farms in Mississippi. Journal of Aquatic Animal Health 17(3):211–215.

2002

Terhune, J. S., Wise, D. J., Khoo, L. H. 2002. Bolbophorus confusus infections in channel catfish in northwestern Mississippi and effects of water temperature on emergence of cercariae from infected snails. North American Journal of Aquaculture 64(1):70–74.

Wagner, B. A., Wise, D. J., Khoo, L. H., Terhune, J. S. 2002. The epidemiology of bacterial diseases in food-size channel catfish. Journal of Aquatic Animal Health 14(4):263–272.

2001

Whitaker, J. W., Pote, L. M., Khoo, L. H., Shivaji, R., Hanson, L. A. 2001. The use of polymerase chain reaction assay to diagnose proliferative gill disease in channel catfish (Ictalurus punctatus). J Vet Diagn Invest 13(5):394-8. Download

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