alexa Determining Optimum Time for Administration of Live Intermediate Vaccine of Infectious Bursal Disease to Chickens at Mekelle Farm
ISSN: 2157-7579

Journal of Veterinary Science & Technology
Open Access

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Research Article

Determining Optimum Time for Administration of Live Intermediate Vaccine of Infectious Bursal Disease to Chickens at Mekelle Farm

Hagazi Fantay*, Endale Balcha, Abraha Tesfay and Berihun Afera

Mekelle University College of Veterinary Medicine, Mekelle, Tigray, Ethiopia

*Corresponding Author:
Hagazi Fantay
Mekelle University college of Veterinary Medicine
Mekelle, Tigray, Ethiopia
Tel: +251 914 530893
E-mail: [email protected], [email protected]

Received February 16, 2015; Accepted March 24, 2015; Published: March 27, 2015

Citation: Fantay H, Balcha E, Tesfay A, Afera B (2015) Determining Optimum Time for Administration of Live Intermediate Vaccine of Infectious Bursal Disease to Chickens at Mekelle Farm. J Veterinar Sci Technol 6:223. doi:10.4172/2157-7579.1000223

Copyright: © 2015 Fantay H, et al. 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.

 

Abstract

The study was conducted from December 2013 to April 2014 to predict the proper age for vaccination of chickens against infectious bursal disease (IBD) and calculate the maternal antibody transfer rate. A total of 99 chickens: 80-day-old chickens and 19 parent chickens’ were randomly selected from Mekelle Farms. Blood samples were collected from heart and wing vein of individual chicken and serum was harvested. Indirect Enzyme Linked Immunosorbent Assay (IELISA) was employed to measure the Maternally Derived Antibodies (MDAs) from chickens of day 2, 18, 21 and antibody titers from parents. Samples from 2 day old chicken were having MDA titer in the range of 805.095-2821.239 with a mean titer of 1677.5. Antibody titers from 19 parents were also measured and the antibody titer showed that it falls within the range of 1825.94-4856.87 with a mean titer of 2964.602 and maternal antibody titer transfer rate from parents to 2 day old chickens was 56.57%. Other MDA titers were measured from 38 chickens of 21 days age of which 19 were vaccinated at 18th day of age and 19 them were non-vaccinated. Titers from vaccinated and non-vaccinated chickens were also compared using paired independent T- test and there was a significant difference with p-value of p=0.00. The present study showed that the proper time for administration of live intermediate IBD vaccine is 18 days instead of 21 days with the management conditions in place at the farm. Therefore, IBD vaccine should not be given to chickens whose parents had taken IBD vaccine without determining MDA titer and age for vaccination.

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