Salmonella penetration of egg shells and proliferation in broiler hatchingeggs - A review

The presence of salmonellae in fertile broiler hatching eggs has been clear ly identified as a critical control point in the salmonellae contamination of broiler chickens. This paper reviews the published research studies on a ) the penetration and proliferation of salmonellae in hatching eggs, b) the consequences of this contamination on the contamination of the final produ ct, and c) the egg's defenses against invading salmonellae. A better unders tanding of the material in this review paper will assist poultry researcher s and the poultry industry in continuing to make progress in reducing and e liminating salmonellae from fertile hatching eggs, hatcheries, and breeder flocks.