Banca de DEFESA: LEANDRO FIGUEIRA SELAU

Uma banca de DEFESA de MESTRADO foi cadastrada pelo programa.
STUDENT : LEANDRO FIGUEIRA SELAU
DATE: 05/08/2020
TIME: 09:00
LOCAL: Web Conferência via Google Meet - xxxxxx
TITLE:

Evaluation of seroconversion induced by comercial inactivated vacines against Salmonella Enteritides and Salmonella Typhimurium

KEY WORDS:

Vaccines; intramuscular; salmonellosis; tool.

PAGES: 45
BIG AREA: Ciências Agrárias
AREA: Medicina Veterinária
SUMMARY:

Inactivated vaccines are a tool intended to reduce contamination and assist in the control of salmonellosis in commercial poultry. To evaluate three commercially inactivated Salmonella Enteritidis and Salmonella Typhimurium (Salmonella Se + St) vaccines, available in the Brazilian market, to induce immune response by serology (ELISA) and to detect antibodies directed to serotypes B and D. Four treatment groups containing 15 commercial poultry vaccinated at 18 weeks of age were analyzed. Birds were vaccinated with Gallimune SE + ST - Boehringer Ingelheim Vaccine (dose 0.3mL / bird intramuscularly), Salenvac T - MSD Vaccine (dose 0.5mL / bird intramuscularly), Avisan Secure - Hipra Vaccine (dose 0.5mL / bird for intramuscular route) and unvaccinated (control group). Serum samples were collected at 14, 21, 28, 49, 84,119 and 161 days after vaccination and evaluated for systemic seroconversion following vaccination with intramuscular inactivated vaccines against Salmonella Enteritidis and Salmonella Typhimurium. After laying at 25 weeks (peak production), egg samples were collected for detection analysis and quantification of antibodies transferred from the bird to the yolk. The experiment and sample collection were performed at UFMG and laboratory analyzes were performed at Boehringer Ingelheim's laboratory. All vaccines analyzed had good seroconversion for Groups B and D, as well as the transfer of antibodies to the egg yolks produced by these birds. There was a slight difference between the vaccines used regarding the persistence of protective antibody titer during the birds' lifetime.

BANKING MEMBERS:
Presidente - 047.057.669-38 - BRENO CASTELLO BRANCO BEIRÃO - UFPR
Interno - 1756086 - DIOGENES DEZEN
Externo à Instituição - PAULO AUGUSTO ESTEVES