Effects of vitamin A supplementation in local free range chickens vaccinated with Newcastle disease vaccine in Wami Dakawa, Morogoro, Tanzania

Authors

  • L. F. Mubila Tanzania Vaccine Institute, Tanzania Veterinary Laboratory Agency, P.O. Box 30137, Kibaha, Tanzania
  • A. M. Sailen Central Veterinary Laboratory, Tanzania Veterinary Laboratory Agency, P.o. Box 9254, Dar es salaam, Tanzania
  • L. A. Mdimi Tanzania Vaccine Institute, Tanzania Veterinary Laboratory Agency, P.O. Box 30137, Kibaha, Tanzania
  • E. Barnabas College Veterinary Medicine and Biomedical Sciences, Sokoine University of Agriculture
  • R. S. Mwakapuja Tanzania Vaccine Institute, Tanzania Veterinary Laboratory Agency, P.O. Box 30137, Kibaha, Tanzania
  • J. J. Malago College Veterinary Medicine and Biomedical Sciences, Sokoine University of Agriculture

Keywords:

Newcastle virus disease, I-2 vaccine, scavenging local chickens

Abstract

Vitamin A is required for normal growth, reproduction and maintenance of epithelial cells chicken’s tissues. In this study, the effect of vitamin A supplementation in chickens immunized with Newcastle disease virus vaccine (strain I-2) was investigated in free range local chickens in Wami-Dakawa, Morogoro region. A total of 40 chickens were divided into four groups with ten birds each namely, Group I, II, III and IV. Group I was treated vaccination and vitamin A, group II were neither vaccinated nor supplemented with vitamin A, group III were vaccinated only and group IV were supplemented with vitamin A only. There were significant increase (p<0.05) in immune response in vaccinated chickens supplemented with vitamin A supplement compared to chickens in other three groups. Therefore, this study suggests that vitamin A should be supplemented to scavenging local chickens during vaccination programme to increase immunization efficiency in the local chickens.

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Published

23-02-2020

How to Cite

Mubila, L. F., Sailen, A. M., Mdimi, L. A., Barnabas, E., Mwakapuja, R. S. and Malago, J. J. (2020) “Effects of vitamin A supplementation in local free range chickens vaccinated with Newcastle disease vaccine in Wami Dakawa, Morogoro, Tanzania”, Tanzania Veterinary Journal, 36(1), pp. 50–53. Available at: https://tvj.sua.ac.tz/vet2/index.php/TVJ/article/view/77 (Accessed: 25 June 2025).

Issue

Vol. 36 (2018): Special issue of TVA Proceedings

Section

RESEARCH ARTICLES

License

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