The effect of feed-based vaccination on tilapia farm endemic for streptococcosis

Ismail MS 1 , Syafiq MR 2 , Siti-Zahrah A 2 , Fahmi S 2 , Shahidan H 2 , Hanan Y 3 Show all authors , Amal MNA 4 , Zamri Saad M 5

Affiliations 

  • 1 Department of Veterinary Laboratory Diagnosis, Faculty of Veterinary Medicine, Universiti Putra Malaysia, 43400 Serdang, Malaysia
  • 2 National Fish Health Research Centre, Batu Maung, 11960 Penang, Malaysia
  • 3 Freshwater Fisheries Research Division, FRI Glami Lemi, 71650 Jelebu, Negeri Sembilan, Malaysia
  • 4 Department of Biology, Faculty of Science, Universiti Putra Malaysia, 43400 Serdang, Malaysia
  • 5 Department of Veterinary Laboratory Diagnosis, Faculty of Veterinary Medicine, Universiti Putra Malaysia, 43400 Serdang, Malaysia. Electronic address: mzamri@upm.edu.my
Fish Shellfish Immunol, 2017 Jan;60:21-24.
PMID: 27864157 DOI: 10.1016/j.fsi.2016.11.040

Abstract

A tilapia farm experiencing endemic streptococcosis was selected to study the effect of vaccination with a feed-based vaccine on naturally ocurring streptococcosis. A total of 9000 red tilapia, Oreochromis niloticus × Oreochromis mossambicus of 100 ± 20 g were divided into 9 cages. Fish of Group 1 in cages 1, 2 and 3 were not vaccinated. Group 2 in cages 4, 5 and 6 were vaccinated on days 0 and 14 (single booster) while Group 3 in cages 7, 8 and 9 were vaccinated on days 0, 14 and 42 (double booster). Vaccination was done by oral administration of the feed-based bacterin vaccine at 4% bodyweight. Samples of serum for antibody study and the brain, eyes and kidney for bacterial isolation were collected at 14-day intervals. The study was carried out during the critical months between April and June. Following vaccination and booster, there was significant (p 

* Title and MeSH Headings from MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.

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