Competitive exclusion
Prevalence of Salmonella, both typhi and paratyphi, remains a limiting factor in optimising profitability in the egg production industry. In general, costs to control diseases are very high and the impact on the media and consumers are also significant. Additionally, Brazilian regulations are becoming less and less tolerant towards the most potentially harmful serotypes to people's health.Due to the enormous diversity of Salmonella serotypes and their high adaptability to different animal species, the control of Salmonella in commercial stocks requires a systemic approach which involves principles of biosecurity such as cleaning, disinfection, control of rodents, flies and Salmonella free feed. The use of auxiliary tools, such as live vaccines and competitive exclusion probiotics, which has proven to be efficient by the scientific community, should be used combined in order to get the most of their individual potentials.