Effect of faecal extract on the growth of salmonella enteritidis in artificially contaminated hens’ eggs

Abstract

1. Salmonella enteritidis PT 4 grew in eggs stored at 25°C, but not at 10°C.

2. The incidence of generalised infection of the egg contents (>10⁶ salmonellas/ml) was greater in eggs inoculated with cells suspended in faecal extract compared to those with cells in Ringer's solution.

3. The removal of most of the iron did not decrease the growth‐promoting effect of the faecal extract.