Nonimmunized egg yolk powder can suppress the colonization of Salmonella typhimurium, Escherichia coli O157:H7, and Campylobacter jejuni in laying hens

Poultry Science
Z G Kassaify, Y Mine

Abstract

If colonized, poultry shed enteric pathogens in the feces. Of those that colonize poultry Salmonella spp., Campylobacter jejuni (C. jejuni), and Escherichia coli (E. coli) O157:H7 are the most concern to the industry. The authors previously discovered that the introduction of 5% dried nonimmunized egg yolk powder in the regular feed could eliminate and prevent Salmonella enteritidis intestinal colonization of laying hens. Hence, the efficacy of nonimmunized dried egg yolk powder supplement in controlling the colonization of laying hens with Salmonella typhimurium (S. typhimurium), C. jejuni, and E. coli O157:H7 was investigated in this study. The 10% (wt/ wt) egg yolk powder eliminated S. typhimurium after 2 wk of feeding and the 5 and 7.5% (wt/wt) supplements significantly (P < 0.05) reduced the frequency of colonization. Similarly, 7.5 and 10% egg yolk powder reduced the colonization of C. jejuni and E. coli O157:H7 significantly (P < 0.05) after 1 wk of feeding. In the prevention trial, pathogen-free chickens were fed supplemented feed (10% egg yolk powder) for 4 wk and were then infected. S. typhimurium was prevented from colonizing the intestine throughout the 4-wk test, and E. coli O157:H7 colonization was delayed for 2 w...Continue Reading

Citations

Mar 23, 2012·Animal : an International Journal of Animal Bioscience·A C Berge, M Wierup
Jun 20, 2006·Journal of Theoretical Biology·K PrévostC Beaumont
Jun 19, 2019·Asian-Australasian Journal of Animal Sciences·Jeongmin An, Jaiesoon Cho
Dec 7, 2017·Acta Veterinaria Scandinavica·Alexandre ThibodeauAnn Letellier

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