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Reduced egg production coincides with an incident in egg-laying activity. A wide range of causes exist and can be related to zootechnical or health issues. Many different parasitic, viral or bacterial diseases can cause a drop in egg production, especially during colibacillosis infections.

Salmonella contamination of laying hen flocks does not cause disease in the animals. However, it creates a public health problem due to the risk of transmission to consumers via the eggs. This infection is therefore strictly regulated, with serious economic consequences for farmers in the event of an outbreak. This…

While incredible progress has already been made, there is increasing demand for chickens raised without antibiotics. This will necessarily involve greater control of Escherichia coli and Enterococcus cecorum infections. We must intervene during the chick phase to limit environmental contamination, prevent the development of pathogens in the intestinal tract, and…