The efficacy of live infectious bursal disease vaccines in commercial 10 days old chicks.
Amer, M., El-Bayomi, K., Abdel-Ghany, W., Kotkat, M., S. Abdel –Gaied, S., Shakal, M. (2008). The efficacy of live infectious bursal disease vaccines in commercial 10 days old chicks.. EKB Journal Management System, 18(1), 23-33. doi: 10.21608/jvmr.2008.77839
M. M. Amer; K. M. El-Bayomi; Wafaa A. Abdel-Ghany; M. A. Kotkat; Sherein S. Abdel –Gaied; M. A. Shakal. "The efficacy of live infectious bursal disease vaccines in commercial 10 days old chicks.". EKB Journal Management System, 18, 1, 2008, 23-33. doi: 10.21608/jvmr.2008.77839
Amer, M., El-Bayomi, K., Abdel-Ghany, W., Kotkat, M., S. Abdel –Gaied, S., Shakal, M. (2008). 'The efficacy of live infectious bursal disease vaccines in commercial 10 days old chicks.', EKB Journal Management System, 18(1), pp. 23-33. doi: 10.21608/jvmr.2008.77839
Amer, M., El-Bayomi, K., Abdel-Ghany, W., Kotkat, M., S. Abdel –Gaied, S., Shakal, M. The efficacy of live infectious bursal disease vaccines in commercial 10 days old chicks.. EKB Journal Management System, 2008; 18(1): 23-33. doi: 10.21608/jvmr.2008.77839

The efficacy of live infectious bursal disease vaccines in commercial 10 days old chicks.

Journal of Veterinary Medical Research
Article 5, Volume 18, Issue 1, March 2008, Page 23-33  XML PDF (354.81 K)
Document Type: Original Article
DOI: 10.21608/jvmr.2008.77839
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Authors
M. M. Amer1; K. M. El-Bayomi2; Wafaa A. Abdel-Ghany1; M. A. Kotkat2; Sherein S. Abdel –Gaied3; M. A. Shakal1
1Poultry diseases department, Faculty Veterinary Medicine, Cairo University ,Egypt.
2Poultry diseases department, National Research Center, Dokki
3Pathology department, Faculty Veterinary Medicine, Cairo University,Egypt.
Abstract
The efficacy of four infectious bursal disease virus (IBDV) vaccines including intermediate (D78) and intermediate plus (228E, IBD-Blen and Bursa-Vac+) were compared in priming  vaccination of 10 days commercial old male layer chicks. There were different parameters were measured for testing these vaccines including; the immunogenic efficacy, the effect on performance, organ (bursa, spleen, and proventriculus) body weight index as well as histopathological examination of bursa, spleen, proventriculus and thymus. Chick was received a dose of 102 EID50 from one IBDV vaccine out of 228E, IBD-Blen or Bursa-Vac+, while D78 dose was 104 EID50. The results cleared out that all the tested vaccines passed through the maternal derived antibodies 2480.133 + 156.3. All vaccines stimulate antibody formation as measured by ELISA test. The used vaccines not affect markedly body weight and feed intake, as there were no significant differences between the control group and the vaccinated ones in the mean body weight and the feed conversion rate. Furthermore, the bursa: body weight index of vaccinated groups were generally less than those of control one at all intervals, while the spleen and proventriculus: spleen: body weight index of vaccinated groups was higher than control on at the end of the observation period. The used vaccines induced histopathological changes in bursa, spleen , proventriculus and thymus glands. These results indicated that all tested vaccine are of value in vaccination of commercial chicks from vaccinated breeders
Keywords
Efficacy; infectious; bursal disease; vaccines; commercial; chicks
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