Banca de DEFESA: GABRIELA TONIAL KNAPPMANN BITTENCOURT

Uma banca de DEFESA de MESTRADO foi cadastrada pelo programa.
STUDENT : GABRIELA TONIAL KNAPPMANN BITTENCOURT
DATE: 05/08/2020
TIME: 13:30
LOCAL: Web Conferência via Google Meet - meet.google.com/dkb-nwhn-ngw.
TITLE:

Influence on the serological response of birds to vaccination against Infectious Bronchitis, in broiler flocks positive for Mycoplasma Sinoviae.

KEY WORDS:

infectious bronchitis, mycoplasma synoviae, vaccine titers, broiler chicken matrices.

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

Especially in recent years, Brazilian poultry has achieved high growth rates, becoming the third major worldwide producer of chicken meat and leader in exports, reaching 142 countries. Factors such as animal health and welfare, quality and price have contributed to improving productivity in the sector. Given this, the concern with the health of animals is one of the main challenges of the market, and the control of Infectious Bronchitis of chickens (IB) and the eradication of Mycoplasma synoviae (Ms) in breeding farms are issues of enormous animal health relevance. IB, caused by a coronavirus, the Infectious Bronchitis Virus (IBV), is an acute and highly contagious viral disease. Mycoplasmosis, on the other hand, is caused by the smallest existing bacteria, Mycoplasma synoviae (Ms), has great capacity for dissemination in the breeding flock, and once the flock is positive, it remains with this status until the end of its life. Both diseases show similar clinical signs affecting the respiratory part, becoming secondary to each other. In the present study, the vaccine titers of Infectious Bronchitis were evaluated in order to verify the existence of interference in the serological response against IBV by the positivity of Ms. For this, the results of 326 serum samples collected in the period from 2014 to 2018 in batches of matrices of an agribusiness in the West of Santa Catarina were verified. To evaluate the effect of the presence of Mycoplasma Sinoviae on the mean titer of bronchitis, the t test was applied in order to compare unpaired data. Through the present analysis it was verified there were no interference of Ms in the antibody titers against the Infectious Bronchitis virus (IBV).

BANKING MEMBERS:
Externo à Instituição - ARLEI COLDEBELLA
Interno - 1756086 - DIOGENES DEZEN
Presidente - 558.691.730-00 - PAULO AUGUSTO ESTEVES - EMBRAPA