Banca de QUALIFICAÇÃO: LUNARA LUISA SULZBACH SECCHI

Uma banca de QUALIFICAÇÃO de MESTRADO foi cadastrada pelo programa.
STUDENT : LUNARA LUISA SULZBACH SECCHI
DATE: 03/12/2021
TIME: 15:00
LOCAL: Web Conferência - Google Meet - meet.google.com/xzj-fecs-daj.
TITLE:

Effect of vaccination on reducing the prevalence of Salmonella in swines.

KEY WORDS:

Market, contamination, farms, microbiology, vaccination.

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

Salmonellosis is an impacting foodborne illness and has been reported worldwide. It is also the main danger attributed to industrially produced pork nowadays. Among all control tools, the use of vaccines can contribute to the control of infections during the growth and termination of swine lots. For that matter, the purpose of this study was to evaluate the effectiveness of the vaccine to reduce the prevalence of pigs carrying Salmonella in mesenteric lymph nodes. 3,500 animals were used in the study, subdivided into seven types of treatments (n=500 animals/treatment). Each treatment was allocated to a different pen, which was used as the experimental unit. On the day of weaning, animal identification and the first weighing were carried out. Vaccination was carried out at the nursery, with seven different treatments: treatment 1 (Lawsonia intracellularis + Salmonella cholerasuis), treatment 2 (Lawsonia intracellularis) and treatment three (Salmonella cholerasuis) were administered orally, treatments 4 (Lawsonia intracellularis + autogenous vaccine) , treatment 5 (Lawsonia intracellularis), treatment six (autogenous vaccine) and treatment seven (control) were administered by injection, of 2 mL per animal. The second weighing was carried out when transferring from the nursery to the finisher and the third at the pre-market. On the date of the second weighing, feces collection was also carried out in all nursery pens where the pigs were located. At the slaughter plant, in the inspection line, mesenteric lymph nodes were collected (n=30/lot). The pool of feces and mesenteric lymph nodes were subjected to bacteriological screening for Salmonella (ISO 6579). With the data obtained, it will be possible to identify whether the treatments used can improve the uniformity of animals, reduce mortality and, above all, control the proliferation of Salmonella in pigs on farms and, likewise, reduce their impact on slaughterhouses and on public health.

BANKING MEMBERS:
Interno - 2613308 - DELANO DIAS SCHLEDER
Interna - 1046884 - ELIZABETH SCHWEGLER
Presidente - 564.081.370-91 - JALUSA DEON KICH - EMBRAPA
Interno - 2017813 - RICARDO EVANDRO MENDES
Interna - 2408296 - SORAYA REGINA SACCO