Inactivated vaccines for tilapia
Front matter
1
Introduction
Background
Freshwater cultured fish are prone to microbial pathogens
2
Research context
3
Project organisation
3.1
Conceptual framework
3.2
Split of the work in workpackages
3.3
Workflow
3.4
Experimental designs
Vaccination
Sampling
3.5
Timelines
4
Pond, fish and husbandry
4.1
Aquaria
4.1.1
Size and Shape
4.1.2
Water parameters
4.2
Number of fish and their caracteristics
4.3
Feeding regime
4.4
Acclimatation
5
Bacterial isolation from the fish tissues
6
Preparation of bacterial culture and formalin-killed vaccines
6.1
Principles of bacterial culture
6.1.1
Generation of microbial growth-curves according to OD600 (λ=600 nm)
6.2
Bacterial strains
6.2.1
Aeromonas veronii
6.2.2
Streptoccocus agalactiae
6.3
Bacterial culture
6.3.1
Laboratory settings
6.3.2
Recovery of strains
6.4
Standard A.veronii
6.5
Standard S.agalactiae
6.5.1
Count viable and dead cells
6.6
Production of vaccines
6.6.1
Production of vaccine Sa
6.6.2
Production of vaccine Av
6.6.3
Production of vaccine Sa + Av
6.6.4
Production of vaccine Control
7
Sample collection and Immunization
7.1
Sample collection
7.2
Immunization
8
Lab assays to monitor immune response
8.1
ELISA for IgM and IgT
8.2
PCR of key immune genes
8.2.1
Normalization of gene expression for RT-PCR
8.3
Agglutination test
8.3.1
Qualitative detection of the presence of antibodies by agglutination
8.3.2
Quantitative antibody agglutination titration
8.4
Collect and analyze results
9
Challenge test
9.1
Bacterial challenge1 (no booster)
9.2
Bacterial challenge 2 (after booster)
10
Results
10.1
Systemic antibody response
10.1.1
Monovalent vaccines
10.1.2
Bivalent vaccine
10.2
Mucosal antibody response
10.2.1
Monovalent vaccines
10.2.2
Bivalent vaccine
10.3
Challenge test 1 (Single group)
10.3.1
Relative percentage survival (single dose)
10.3.2
Kaplan-Meier survival estimates for the first challenge test
10.4
Challenge test 2 (Booster group)
10.4.1
Relative percentage survival (booster)
10.4.2
Kaplan-Meier survival estimates for the second challenge test
11
Discussion
References
Published with bookdown
Systemic and mucosal immune responses of fish Nile tilapia to monovalent and bivalent inactivated vaccines from Streptococcus agalactiae and Aeromonas veronii
Chapter 9
Challenge test
9.1
Bacterial challenge1 (no booster)
9.2
Bacterial challenge 2 (after booster)