The Thai Journal of Veterinary Medicine
Abstract
Ninety six, fourteen day-old, broiler chickens were randomly divided into four groups of 24 birds. Groups 1 and 2 were orally vaccinated with live commercial intermediate-plus and intermediate infectious bursal disease (IBD) vaccines, respectively. Groups 3 and 4 served as a positive and negative non-vaccinated controls, respectively. Blood samples were collected at 14, 28 and 38 days of age for determining IBD antibody titers by an ELISA test. Groups 1, 2 and 3 were challenged with an IBD virus, isolated in Thailand, when 28 day of age. Average body weight, FCR, bursa/body weight index and the average bursal lesion score at 28 and 38 days were compared. At 28 days old, the average body weight and bursa/body weight index were not significantly different (p>0.05) compared to chickens in groups 3 and 4. At 38 days the average body weight, FCR and bursa/body weight index of chickens in groups 1 and 2 were better than those of group 3.
Publisher
Faculty of Veterinary Science, Chulalongkorn University
First Page
91
Last Page
96
Recommended Citation
Chansiripornchai, Niwat and Sasipreeyajan, Jiroj
(2005)
"THE EFFICACY OF INTERMEDIATE AND INTERMEDIATE-PLUS INFECTIOUS BURSAL DISEASE VACCINE FOR THE PREVENTION OF INFECTIOUS BURSAL DISEASE IN BROILERS,"
The Thai Journal of Veterinary Medicine: Vol. 35:
Iss.
4, Article 13.
Available at:
https://digital.car.chula.ac.th/tjvm/vol35/iss4/13