| Infectious bursal disease of chickens JOA Okoye Veterinary Bulletin 54, 425-436, 1984 | 79 | 1984 |
| LaSota vaccination may not protect against the lesions of velogenic Newcastle disease in chickens WS Ezema, JOA Okoye, JA Nwanta Tropical animal health and production 41, 477-484, 2009 | 72 | 2009 |
| An outbreak of infectious bursar disease among chickens between 16 to 20 weeks old JOA Okoye Avian diseases 25, 1034-1038, 1981 | 71 | 1981 |
| Pathological characterization in chickens of a velogenic Newcastle disease virus isolated from guinea fowl JOA Okoye, AO Agu, CN Chineme, GON Echeonwu Revue d Elevage et de Medicine Veterinaire des Pays Tropicaux 53 (4), 325-330, 2000 | 55 | 2000 |
| Serologic evidence of avian influenza virus infections among Nigerian agricultural workers J Okoye, D Eze, WS Krueger, GL Heil, JA Friary, GC Gray Journal of medical virology 85 (4), 670-676, 2013 | 47 | 2013 |
| Prevalence of Newcastle disease viruses in wild and captive birds in central Nigeria JO Ibu, JOA Okoye, EP Adulugba, KF Chah, SVO Shoyinka, E Salihu, ... International Journal of Poultry Science 8 (6), 574-578, 2009 | 46 | 2009 |
| Comparative study of the resistance or susceptibility of local Nigerian and exotic chickens to infectious bursal disease JOA Okoye, EP Aba‐Adulugba Avian pathology 27 (2), 168-173, 1998 | 42 | 1998 |
| Pathogenesis of infectious bursal disease in embryonally bursectomised chickens JOA Okoye, M Uzoukwu Avian Pathology 19 (3), 555-569, 1990 | 40 | 1990 |
| Antihepatotoxic effects of ethanolic extracts of Combretum dolichopetalum root bark and Morinda lucida leaf SC Udem, II Madubuinyi, JOA Okoye, SM Anika Fitoterapia 67, 21-25, 1997 | 38 | 1997 |
| Natural pulmonary infections due to Aspergillus flavus in turkey poults and goslings JOA Okoye, HC Gugnani, CN Okeke Mycoses 32, 336-339, 1989 | 36* | 1989 |
| Comparative Study of the Pathology and Pathogenesis of a Local Velogenic CP Eze, JOA Okoye, IO Ogbonna, VVS Ezema, DC Eze, EC Okwor, ... International Journal of Poultry Science 13 (1), 52-61, 2014 | 31 | 2014 |
| Paralysis and lameness associated with aflatoxicosis in broilers JOA Okoye, IU Asuzu, HC Gugnani Avian Pathology 17, 731-734, 1988 | 30 | 1988 |
| Atrophy of the lymphoid organs and suppression of antibody response caused by velogenic Newcastle disease virus infection in chickens WS Ezema, DC Eze, SVO Shoyinka, JOA Okoye Tropical animal health and production 48, 1703-1709, 2016 | 27 | 2016 |
| Experimental velogenic Newcastle disease can be very severe and viscerotropic in chickens but moderate and neurotropic in guinea fowls OA Igwe, SW Ezema, CD Eze, OA Okoye International Journal of poultry science 13, 582-590, 2014 | 27 | 2014 |
| Naturally occurring clinical reticuloendotheliosis in turkeys and chickens JOA Okoye, W Ezema, JN Agoha Avian Pathology 22 (2), 237-244, 1993 | 24 | 1993 |
| Newcastle disease in a vaccinated flock which had experienced subclinical infectious bursal disease. JO Okoye, SV Shoyinka Tropical animal health and production 15 (4), 221-225, 1983 | 24 | 1983 |
| Preliminary evaluation of the immunoenhancement potential of Newcastle disease vaccine formulated as a cationic liposome EB Onuigbo, VC Okore, KC Ofokansi, JOA Okoye, CS Nworu, ... Avian pathology 41 (4), 355-360, 2012 | 23 | 2012 |
| Susceptibility of local Nigerian and exotic chickens to infectious bursal disease by contact exposure JOA Okoye, EP Aba-Adulugba, RC Ezeokonkwo, SC Udem, LJE Orajaka Tropical Animal Health and Production 31, 75-81, 1999 | 23 | 1999 |
| Changes in serum calcium and phosphorus levels and their relationship to egg production in laying hens infected with velogenic Newcastle disease virus AO Igwe, JI Ihedioha, JOA Okoye Journal of Applied Animal Research 46 (1), 523-528, 2018 | 22 | 2018 |
| Pathological effects of feeding roasted castor bean meal (Ricinus communis) to chicks JOA Okoye, CA Enunwaonye, AU Okorie, FOI Anugwa Avian Pathology 16, 283-290, 1987 | 20 | 1987 |
