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Ability of Hydrogen Peroxide and Timsen to Eliminate Artificially Inoculated Salmonella from Fertile Broiler Eggs

N. A. Cox^*, J. M. Mauldin, R. Kumararaj and M. T. Musgrove^*

^* USDA, ARS, Russell Research Center, 950 College Station Road, Athens, Georgia 30605
Poultry Science Extension, University of Georgia, Athens, Georgia 30605
Madras Veterinary College, Madras, India

Correspondence: N. A. Cox, E-mail: ncox{at}saa.ars.usda.gov

Varying levels (10⁵ to 10⁷/egg) of Salmonella Typhimurium were inoculated onto fertile hatching eggs by immersion. After this, the inoculated eggs were untreated (control), water treated, hydrogen peroxide (1.5%) treated, or Timsen treated (n-alkyl dimethyl benzyl ammonium chloride as a commercial bactericide-fungicide). Hydrogen peroxide was superior to Timsen as an egg treatment to eliminate artificially inoculated Salmonella from fertile eggs, but one-third of the treated eggs remained Salmonella positive. This study demonstrates how difficult it is to eliminate Salmonella that contaminate fertile hatching eggs. Until a more effective system or process is devised and commercially implemented, Salmonella and other organisms will continue to pass from one generation to the next through the fertile egg.

Key Words: broiler egg • hydrogen peroxide • Salmonella • Timsen