Study of the efficiency of vaccination use to reduce the prevalence of Salmonella sp. slaughter of pigs
Salmonela, Foodborne illness, Vacination, DIVA Vaccine, Slaughterhouse
Among the diseases caused by food (DTA), Salmonellosis is the largest. It represents a multifaceted threat to food production and safety and in many cases the disease has resistance to antimicrobial treatments, which creates concerns and risks to public health (NARROD et al., 2011). Salmonella infections in pig herds are often endemic and predominantly subclinical, leading to an urgent need for action to monitor and reduce the number of Salmonella-infected animals (ROSTAGNO, 2011). In this context, effective control of Salmonella has to be looked at from a different angle by professionals responsible for pig health, from the farm to the slaughterhouse. Pre- and post-slaughter strategies are necessary for the control of Salmonella within the production chain, post-slaughter interventions seem to have a greater efficacy. However, field intervention measures may contribute to the improvement of the post-slaughter process. Therefore, this research seeks to test a vaccine that provides a cross-protection between serovars, thus achieving a DIVA vaccine status (differentiation of infected animals for vaccinated animals), differentiating it from existing vacines. Therefore, the proposed research is necessary and is in line with the advances of swine breeding and the requirements of the Ministry of Agriculture and the consumer market, as it aims to establish a prevention and reduction of contamination of carcasses by Salmonella sp, making swine breeding responsible for quality of food, serving an increasingly demanding consumer market.