Vaccination Against Infectious Bursal Disease Virus (IBDV) in Broiler Birds in Mozambique: Are We Doing Enough?
DOI:
https://doi.org/10.3923/ijps.2015.644.646Keywords:
Broilers, infectious bursal disease virus, Mozambique, serology, vaccinationAbstract
Although regularly vaccinated, IBD outbreaks are frequently reported in broiler birds in Mozambique, which may suggest poor immunization. To test this hypothesis, this study aimed to detect maternally derived antibodies titers in commercial unvaccinated 1-d-old chicks and to evaluate humoral immune status of vaccinated adult chicken broilers against IBD virus from Matola and Maputo regions. Serum samples were collected from unvaccinated broiler day-old chicks (n = 250) and vaccinated adult broiler chicken (n = 300). A commercial ELISA kit was used to determine the titer of mAb. Our results revealed that one day old chicks presented high protective antibodies titers and good and low coefficient of variation (CV), which indicated optimal maternal immunity transfer. Only 28% of adult broiler serum samples had protective antibody titers and more than 1/3 were seronegative. In addition, as little as 27% of analyzed flocks were considered protected against IBD virus. Taken together, this data suggest that, unlike what has been found in 1-d-old chicks, the evaluated adult broiler poultry population were susceptible to IBDV, which may explain the frequently outbreaks reported in those regions.
References
Allan, W.H., J.T. Faragher and G.A. Culleu, 1972. Immunosuppression of infectious bursal agent in chicks immunized against Newcastle disease. Vet. Record, 90: 511-512.
Besseboua, O., A. Ayad and H. Benbarek, 2015. Determination of the optimal time of vaccination against infectious bursal disease virus (Gumboro) in Algeria: Original research. Onderstepoort J. Vet. Res., 82: 1-6.
Da Silva, P.S., T.S. Sales, I.R. da Luz, P.C.C. Maia, L.M.B. Fernandes and C.O. Mendes, 2012. [Antibodies anti-Infectious Bursal Disease virus and viral genome detection in broilers and chickens backyard at Bahia's poultry production area]. Ciencia Rural, 42: 1044-1050.
Flensburg, M.F., A.K. Ersboll and P.H. Jorgensen, 2002. Risk factors associated with the introduction of acute clinical infectious bursal disease among Danish broiler chickens in 1998. Avian Pathol., 31: 23-29.
Fussell, L.W., 1998. Poultry industry strategies for control of Immunosuppressive diseases. Poult. Sci., 77: 1193-1196.
Giambrone, J.J., T. Dormitorio, T. Brown and K. Takeshita, 1999. Monitoring the immune status of broiler breeders against infectious bursal disease virus using progeny challenge and serologic data. J. Applied Poult. Res., 8: 362-367.
Hirai, K., E. Kawamoto and S. Shimkrura, 1974. Some properties of precipitating antigens associated with infectious bursal disease virus. Infect. Immun., 10: 1235-1240.
Sharma, J.M., I.J. Kim, S. Rautenschlein and H.Y. Yeh, 2000. Infectious bursal disease virus of chickens: Pathogenesis and immunosuppression. Dev. Comp. Immunol., 24: 223-235.
Sil, G.C., P.M. Das, M.R. Islam and M.M. Rahman, 2002. Management and disease problems of cockerels in some farms of Mymensingh, Bangladesh. Int. J. Poult. Sci., 1: 102-105.
Tariq, J., 1999. Vaccine and vaccination. Agro Vet. News, 25: 22-23.
Thrusfield, M.V., 1995. Veterinary Epidemiology. 2nd Edn., Blackwell Science, Oxford, UK., pp: 178-198.
Van den Berg, T.P., 2000. Acute infectious bursal disease in poultry: A review. Avian Pathol., 29: 175-194.
Vui, T.Q., J.E. Lohr, M.N. Kyule, K.H. Zessin and M.P.O. Baumann, 2002. Antibody levels against newcastle disease virus, infectious bursal disease virus and avian influenza virus in rural chickens in Viet Nam. Int. J. Poult. Sci., 1: 127-132.
Young, M.B., R. Alders, S. Grimes, P.B. Spradbrow, P. Dias, A da Silva and Q. Lobo, 2002. Controlling Newcastle Disease in Village Chickens: A Laboratory Manual. 1st Edn., Australian Centre for International Agricultural Research (ACIAR), Australia, Pages: 142.
Brentano, L., B.G. Silva, S. Sayd and S.W. Flores, 2000. Antibodies to Chicken Anemia Virus (CAV) in broiler breeder flocks in Brazil. Rev. Bras. Cienc. Avic., 2: 157-179.
Downloads
Published
Issue
Section
License
Copyright (c) 2015 Asian Network for Scientific Information
This work is licensed under a Creative Commons Attribution 4.0 International License.
This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution and reproduction in any medium, provided the original author and source are credited.
