What are the risk factors for French hens contracting Salmonella?

Huneau-Salaun et al. studied 519 flocks of French hens to determine what factors increased risk for Salmonella. As expected, caged hens were more likely to have Salmonella contamination than their more free-range sisters. Delivery trucks that passed closer to the flocks seemed to increase Salmonella risk. The group made some recommendations for lowering risk, such as having proper disposal practices for deceased birds. We wondered whether autoclaving could be implemented as a preventive measure, and in a preliminary study, we found that a model “French Hen” (shown at left) was Salmonella-free following autoclave treatment. -SD & BC


Huneau-Salaun A, et al. 2009.
Risk factors for Salmonella enterica subsp. enterica contamination in 519 French laying hen flocks at the end of the laying period. Preventative Veterinary Medicine. 89(1–2):51-58. doi: 10.1016/j.prevetmed.2009.01.006.

image courtesy Brian Choi