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  Advantages and disadvantages of the different products commonly used to control infections in commercial poultry farms caused by the most important species of salmonella

Antibiotics

Advantages Disadvantages
Economic Development of resistant strains.
Easy application Presence of “carriers” (Salmonella “hides” inside the internal organs).
  Do not eliminate the infection completely.
  Possible destruction of the beneficial microflora present in
the GI tract.
   

Probiotics

Advantages Disadvantages
Prevent colonization of the GI tract. Do not protect in case of severe challenge.
By preventing colonization of the GI tract, reduce the probability of internal organs contamination Do not prevent the infection if chicks are contaminated vertically (transovarially) in the hatchery.
  Antibiotics capable of destroying the microorganisms present in the probiotics should not be used.
   


Vaccination (killed)

Advantages Disadvantages
Prevent GI tract colonization Do not protect in case of severe challenge.
Certain level of protection Costly.
  Poultry must be salmonella-free before application.
  Offers specific protection against the species included in the vaccine.
  Labor intensive application.


Acidifiers

Advantages Disadvantages
Reduces fecal shedding Development of resistant strains.
Easy application Presence of “carriers”
(Salmonella “hides” inside internal organs).
  Intermittent elimination of Salmonella
in the feces of carriers.
  Farm equipment corrosion.


In conclusion, various methods have been commonly used to prevent or treat
infections caused by different species of Salmonella. The fact that normally two or
more methods are used in combination is an indication of how difficult it is to
prevent or control the infections. For this reason, the use of new products such as
Citrex, that can be used alone or in combination with other existing methods,
represents an important option for the treatment and prevention of Salmonella
infections.
 
     
     
 
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