Indicator Microorganism in Egg

Reduce microorganisms in Egg

Indicator

Decontamination

Reduce Contamination

Objectif

Microbiology of EggsEgg Contamination

Egg content isgenerally sterile...but not the shell

Endogenic contamination(ovary)

Exogeniccontamination

Penetration

Egg ContaminationEndogenic Contamination of Eggs

Isthmus

Uterus

Vagina

Ovary

Magnum

Egg Contamination

Exogenic

Microorganisms

Digestive Tract

Breeding Environment

Breeding and Geographical area

From 103 to 106

bacteria/egg

Prevalence of G+ cocci

Presence of enterobacteria (G-)

Presence of Bacillus

Influenced

Air Contamination

Season

System of Breeding

Aviary Housing Systems

Exogenic Contamination of Eggs

Egg ContaminationPenetration

Penetration

Natural Barriers

Cuticule

Eggshell

Eggshell membranes

Faktor Influencing

Maturity of the Cuticule

Temperature Changes

Condensation

Selective Effect

Alkaline pH

Viscous

Iron Deprived

Many Inhibiting Proteins

Microbiology of EggsEgg Decontamination Procedures

EggAccumulation

Washing

DryingOiling

Check-Candling

Scaling

Microbiology of EggsHow to Reduce Contamination ?

Localization and Level of

Contamination

Breeding Practices Anti-

Salmonella Procedures

Collecting, Washing and

Storage Conditions

Microbiology of EggsReferences

Jan, S. and Baron, F..2009.Egg Contamination : Agrocampus Rennes France 28(2):198-205

Okamura et al.2001.Endogenic Contamination of Egg.Jurnal of veteneranier 13(1):115-127

Musgrove et al.2005.Exogenic Contamination of Egg. Scientic Journal 12(2):21-43

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