A small variation in diet influences the Lactobacillus strain composition in the crop of broiler chickens

Susan Hammons, Phaik Lyn Oh, Inés Martínez, Kenzi Clark, Vicki L Schlegel, Emily Sitorius, Sheila E. Scheideler, Jens Walter

Research output: Contribution to journalArticle

26 Citations (Scopus)

Abstract

Feed composition has the potential to influence the activities of bacteria that colonize the digestive tract of broiler chickens with important consequences for animal health, well being, and food safety. In this study, the gut microbiota of two groups of broiler chickens raised in immediate vicinity but fed either a standard corn/soybean meal ration (corn-soy, CS) or a ration high in wheat middlings (high wheat, HW) was characterized. The findings revealed that this small variation in feed composition did not influence the distribution of microbial species present in the microbial community throughout the digestive tract. However, diet variation markedly influenced the Lactobacillus strain composition in the crop. Most striking, the dominant type in birds on the CS diet (Lactobacillus agilis type R5), which comprised 25% of the isolates, was not detected in birds fed the HW diet. The latter birds harbored a different strain of L. agilis (type R1) in a significantly higher ratio than birds on the CS diet. Several other strains were also specific to the particular diet. In conclusion, this study showed that a small variation in the composition of chicken feed that does not result in detectable differences in species composition can still have an impact on which microbial strains become dominant in the digestive tract. This finding has relevance in the application of probiotics and other direct-fed microbials in poultry husbandry.

Original languageEnglish (US)
Pages (from-to)275-281
Number of pages7
JournalSystematic and Applied Microbiology
Volume33
Issue number5
DOIs
StatePublished - Aug 1 2010

Fingerprint

Lactobacillus
Chickens
broiler chickens
Zea mays
Lactobacillus agilis
Birds
diet
Diet
crop
maize
digestive tract
Triticum
bird
feed composition
Gastrointestinal Tract
crops
corn
wheat
birds
middlings

Keywords

  • Broiler chicken
  • Feed
  • Gut microbiota
  • Lactobacillus

ASJC Scopus subject areas

  • Microbiology
  • Ecology, Evolution, Behavior and Systematics
  • Applied Microbiology and Biotechnology

Cite this

A small variation in diet influences the Lactobacillus strain composition in the crop of broiler chickens. / Hammons, Susan; Oh, Phaik Lyn; Martínez, Inés; Clark, Kenzi; Schlegel, Vicki L; Sitorius, Emily; Scheideler, Sheila E.; Walter, Jens.

In: Systematic and Applied Microbiology, Vol. 33, No. 5, 01.08.2010, p. 275-281.

Research output: Contribution to journalArticle

Hammons, Susan ; Oh, Phaik Lyn ; Martínez, Inés ; Clark, Kenzi ; Schlegel, Vicki L ; Sitorius, Emily ; Scheideler, Sheila E. ; Walter, Jens. / A small variation in diet influences the Lactobacillus strain composition in the crop of broiler chickens. In: Systematic and Applied Microbiology. 2010 ; Vol. 33, No. 5. pp. 275-281.
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