Histological examination of various organs of Asian seabass, Lates calcarifer, after an oral inactivated vaccine against Vibrio harveyi.
المصدر
Journal of Agricultural and Marine Sciences (JAMS), v. 29, no. 2, p. [38-89].
الناشر
College of Agricultural and Marine Sciences, Sultan Qaboos University.
العنوان الأصلي
Histological examination of various organs of Asian seabass, Lates calcarifer, after an oral inactivated vaccine against Vibrio harveyi.
الملخص الإنجليزي
Disease outbreaks and consequential losses are a challenge to the aquaculture industry. Diseases in aquaculture are caused by pathogenic agencies, such as bacteria, viruses, and parasites. The use
of vaccines is one approach for the control of infections in fish and in building immunity against them. The
goal of the present study was to create an effective oral vaccination against V. harveyi in order to ensure
the long-term viability of aquaculture operations in the Sultanate of Oman. At a commercial farm, the tar
get bacterium was isolated from infected fish and identified from a pure strain. Bacteria were killed with
formalin and cleaned with saline several times. The vaccine was mixed with commercial feed to provide
an oral vaccination for fish. This vaccinated feed was given for four weeks, and the efficiency of vaccine
was determined by a challenge test, which involved injecting live same species of bacteria into healthy fish.
Histology samples were taken when the experiment was completed. Multivitamins and vaccination therapy
helped the fish to develop faster and to survive for extended periods of time without any organ damages.
The control fish, on the other hand, demonstrated an incapacity to resist bacteria and died as a result, with
external and internal organ damage. Despite the positive findings of this study, more research is required.
المعرف
DOI: 10.53541/jams.vol29iss2pp80 - 86
