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Abstract
This study was conducted to evaluate gross pathologies of Newcastle disease in Maiduguri metropolis observed during necropsy. The study utilized poultry necropsy records from University of Maiduguri Veterinary Teaching Hospital (UMVTH) and Senator Ali Modu Sherriff Veterinary Hospital, Maiduguri (2013-2023). 1,175 (15.774%) out of the 7,449 carcasses examined were ND positive. The yearly trend of ND cases showed a slight decline (r= -0.177) but not significant (P>0.05). Cases based on chicken types differ significantly (P<0.05). It occurred in 73.957% broilers, 11.915% layers, 4.522% noilers, 0.937% local chickens and 0.426% pigeons. Turkeys and cocks had 2.043% and 1.957%, respectively (P>0.05), and 0.085% peacock, 0.085% duck and 0.085 brahma (P>0.05). the proportion of poultry types reared in Maiduguri vary significantly (P<0.05). There were 70.154% broilers, 23.834% layers, and the least were 0.004% duck, 0.003% brahma and 0.002% peacock (P>0.05). Cases of ND occurred in birds aged 1 to >20 weeks, but occurrence was more frequent in birds aged 3 to 4 weeks. 6.383% of 1,175 cases were complicated by diseases such as colibacillosis (41.333%), which varied significantly (P<0.05) form salmonellosis (18.667%), coccidiosis (14.667%), IBD (13.333%), and necrotic enteritis (10.667%) that had comparable values (P>0.05), and IBD + colibacillosis had 1.333% (P<0.05). Digestive organs (intestine, proventriculus, liver) had 1,519, lymphoid organs (spleen, caecal tonsils) had 943, respiratory organs (lung, trachea) had 333 and urinary organ (kidney) had 38 occurrences of gross lesion (P<0.05). This report, therefore, confirms the endemicity of ND in poultry in Maiduguri metropolis.
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References
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References
Abdu, P.A. and Garba, I.M. (1989). Newcastle disease haemagglutination antibodies in unvaccinated chicks. Zaria Vet., 4(2):103-105.
Abdu, P.A., Sa’idu, L., Bawa, E.K. and Umoh, J. (2005). Factors that contribute to Newcastle disease, infectious bursal disease and fowl pox outbreaks in chickens. Presented at the 42nd Annual Congress of the Nigerian Veterinary Medical Association. Held at University of Maiduguri. 14th-18th November 2005.
Abdolmaleki, M., Yeap, S.K., Tan, S.W., Satharasinghe, D.A., Bello, M.B., Jahromi, M.Z., Bejo, M.H., Omar, A.R. and Ideris, A. (2018). Effects of Newcastle disease virus infection in chicken intestinal intraepithelial natural killer cells. Front. Immunol., 9: 1386
Ahmed, K.A., Saxena, V.K, Ara, A., Singh, K.B., Sundaresan, N.R., Saxena, M. and Rasool, T.J. (2007). Immune response to Newcastle disease virus in chicken lines divergently selected for cutaneous hypersensitivity. Int. J. Immunogenet., 34: 445-455.
Ahmed, K., Raa, I., Hussain, I., Jan, M. and Latif, A. (2014). Prevalence of E. coli in suspected urinary tract infection patients and their sensitivity pattern against various antibiotics in Gilgil-Baltistan. Pak. J. Zool., 461783-1788.
Alexander, D.J. (1997). Newcastle disease and other avian paramyxoviridae infection in: Disease of Poultry, 10th edition. (editors: Calnek, B.W., Barnes, H.J., Beard, C.W., McDougald, L.R and Saif, Y.M ). Iowa state university press, Iowa USA. pp. 541-569.
Alexander, D.J. (2000). Newcastle disease and other avian paramyxoviruses. OIE Revue Sci. Tech., 19(2): 443–462.
Alexander, D. J. (2001). Newcastle disease. Br. Poult. Sci., 42(1): 5-22.
Aliyu, H.B., Sa’idu, L., Abdu, P.A. and Oladele, S.B. (2015). Retrospective analysis of Newcastle disease diagnosis at the poultry clinic of Ahmadu Bello University, Zaria, Nigeria. Sok. J. Vet. Sci., 13(3): 42-48.
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Ashraf, A. and Shah, M.S. (2014). Newcastle disease: Present status and future challenges of developing countries. Afr. J. Microbiol. Res., 8(5) 411-416.
Badau, S.J., Hassan, S.U., El-Yuguda, A.D. and Igbokwe, I.O. (2015). Experimental intraocular infection of exotic cockerels with field strain of velogenic Newcastle disease virus in Nigeria. J. Adv. Vet. Anim. Res., 2(4):418-426.
Badau, S.J., Igbokwe, I.O., Hassan, S.U. and El-Yuguda, A.D. (2017). Effect of oral levamisole treatment of cockerels on their responses to experimental intraocular infection with velogenic Newcastle disease virus. Bull. Anim. Health. Prod. Afr.,65(3): 425-437.
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Balami, A.G., Ndahi, J.J., Zaifada, A.U., Mustapha, M., Jarafu, D.J., Asogwa, N.T. and Hajara, S. (2014). A retrospective study of poultry diseases diagnosed in Maiduguri, north-east Nigeria. Poult. Fish. Wildl. Sci.,2(1): 113
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Cheville, N. F. (1979. Environmental factors affecting the immune response of birds: a review. Avian Dis., 23(2): 308-314.
Deist, M.S., Gallardo, R.A., Bunn, D.A., Kelly, T.R., Dekkers, J.C.M., Zhou, H. and Lamont, S.J. (2017). Novel mechanism revealed in the trachea transcriptome of resistant and susceptible chicken lines following infection with Newcastle disease virus. Clin. Vacc. Immunol., 24(5), EPUB 22/5/2017. https://doi.org/10.1128/CVI.00027-17.
DeVolt, H.M., Quigley, G.D. and Byerly, T.C. (1941). Studies of resistance to pullorum disease in chickens. Poult. Sci., 20(4): 339-341.
Fatumbi, O.O. and Adene, D.F. (1979). Susceptibility of the Nigerian local chickens to a fulminating Newcastle disease outbreak. Nig. Vet. J., 8(21) 30-32.
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Gul, H., Habib, G., Khan, I.M., Rahman, S.U., Khan, N.M., Wang, H., Khan, N.U. and Liu, Y. (2022). Genetic resilience in chickens against bacterial, viral and protozoal pathogens. Front. Vet. Sc., 9:1032983. doi: 10.3389/fvets.2022.1032983.
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Igbokwe, I.O., Salako, M.A., Rabo, J.S. and Hassan, S.U. (1996). Outbreaks of infectious bursal disease associated with acute septicaemic colibacillosis in adult prelayer hens. Revue. Elev. Med. Vet. Pays trop. 49(2): 110-113.
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Kaleta, E. and Baldauf, C. (1988). Newcastle disease in free-living and pet birds. D.J. Alexander (Ed), Newcastle disease, Kluwer Academic Press, Boston, MA Springer, US. pp. 197-246’
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