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Investigation of Medium Chain Fatty Acid Feed Supplementation for Reducing Salmonella Typhimurium Colonization in Turkey Poults.
Evans, Nicholas P; Collins, David A; Pierson, Frank William; Mahsoub, Hassan M; Sriranganathan, Nammalwar; Persia, Mike E; Karnezos, Theodore Peter; Sims, Michael D; Dalloul, Rami A.
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  • Evans NP; 1 Department of Population Health Sciences, Virginia-Maryland College of Veterinary Medicine, Virginia Polytechnic and State University , Blacksburg, Virginia.
  • Collins DA; 1 Department of Population Health Sciences, Virginia-Maryland College of Veterinary Medicine, Virginia Polytechnic and State University , Blacksburg, Virginia.
  • Pierson FW; 1 Department of Population Health Sciences, Virginia-Maryland College of Veterinary Medicine, Virginia Polytechnic and State University , Blacksburg, Virginia.
  • Mahsoub HM; 1 Department of Population Health Sciences, Virginia-Maryland College of Veterinary Medicine, Virginia Polytechnic and State University , Blacksburg, Virginia.
  • Sriranganathan N; 2 Department of Poultry Production, Faculty of Agriculture, Alexandria University , Alexandria, Egypt .
  • Persia ME; 3 Department of Biomedical Sciences and Pathobiology, Virginia-Maryland College of Veterinary Medicine, Virginia Polytechnic and State University , Blacksburg, Virginia.
  • Karnezos TP; 4 Department of Animal and Poultry Sciences, College of Agriculture and Life Sciences, Virginia Polytechnic and State University , Blacksburg, Virginia.
  • Sims MD; 5 PMI Nutritional Additives™ , Shoreview, Minnesota.
  • Dalloul RA; 6 Virginia Diversified Research Corporation , Harrisonburg, Virginia.
Foodborne Pathog Dis ; 14(9): 531-536, 2017 09.
Article en En | MEDLINE | ID: mdl-28696788
Studies indicate that persistent Salmonella colonization occurs in poultry that are infected early in life, leading to both food safety and public health concerns. Development of improved preharvest Salmonella management strategies is needed to reduce poultry product contamination. The objective of this study was to evaluate the efficacy of a product containing medium chain fatty acids (MCFA) for reducing early Salmonella colonization in turkey poults. Day-of-hatch turkeys were provided a standard starter diet supplemented with MCFA at 0 (negative and positive controls), 1.5, 3, 4.5, or 6 lbs/ton of feed. Positive control and MCFA treated birds were also crop-gavaged with 108 colony forming units (CFU) of bioluminescent Salmonella Typhimurium. Gastrointestinal tissue samples were collected at 3 days postinoculation for bioluminescence imaging (Meckel's diverticulum to the cloaca) and selective enumeration (cecal contents). Quantification of bioluminescence indicated that the 4.5 and 6 lbs/ton MCFA groups had significantly less colonization than the positive control group (p = 0.0412 and p < 0.0001, respectively). Similarly, significantly lower numbers (1-log10 CFU/g reduction) of Salmonella were observed in the ceca of the 6 lbs/ton MCFA group compared to the positive control group (p = 0.0153). These findings indicate that incorporation of MCFA in turkey diets can significantly reduce early Salmonella colonization. In addition, this study highlights the utility of bioluminescence imaging as a screening methodology for assessing the efficacy of treatments that may reduce Salmonella in poultry.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Enfermedades de las Aves de Corral / Salmonelosis Animal / Salmonella typhimurium / Contaminación de Alimentos / Suplementos Dietéticos / Ácidos Grasos Tipo de estudio: Clinical_trials Límite: Animals / Female / Humans Idioma: En Revista: Foodborne Pathog Dis Asunto de la revista: CIENCIAS DA NUTRICAO / MICROBIOLOGIA / PARASITOLOGIA Año: 2017 Tipo del documento: Article Pais de publicación: Estados Unidos
Texto completo
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Enfermedades de las Aves de Corral / Salmonelosis Animal / Salmonella typhimurium / Contaminación de Alimentos / Suplementos Dietéticos / Ácidos Grasos Tipo de estudio: Clinical_trials Límite: Animals / Female / Humans Idioma: En Revista: Foodborne Pathog Dis Asunto de la revista: CIENCIAS DA NUTRICAO / MICROBIOLOGIA / PARASITOLOGIA Año: 2017 Tipo del documento: Article Pais de publicación: Estados Unidos