They are transmitted by faecal contamination, infected birds, rodents and human carriers or by direct contact with infected birds. Laying hens can pass Salmonella to the egg as a result of infected ovaries and embryos may become infected by faecal contamination of the egg during incubation.
Salmonella are extremely resistant and live for extended periods of time outside the host.
Wood surfaces and dirt floors suit them fine. Any species of bird can be affected by Salmonellosis. It is highly infectious as well as highly virulent. Incubation Deaths usually begin within a few days but can occur up to two weeks after contamination. Clinical Signs 1.