Intestinal microbiota profiles associated with low and high residual feed intake in chickens across two geographical locations

Intestinal microbe-host interactions can affect the feed efficiency (FE) of chickens. As inconsistent findings for FE-associated bacterial taxa were reported across studies, the present objective was to identify whether bacterial profiles and predicted metabolic functions that were associated with r...

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Bibliographic Details
Published in:PloS one 2017-11, Vol.12 (11), p.e0187766
Main Authors: Siegerstetter, Sina-Catherine, Schmitz-Esser, Stephan, Magowan, Elizabeth, Wetzels, Stefanie Urimare, Zebeli, Qendrim, Lawlor, Peadar G, O'Connell, Niamh E, Metzler-Zebeli, Barbara U
Format: Article
Language:English
Subjects:
Abundance
Amino acids
Animals
Antigens
Bacteria
Biodiversity
Biology and Life Sciences
Cecum
Chicken (Meat)
Chickens
Consortia
Correlation analysis
Diet
Efficiency
Fatty acids
Feces
Feed efficiency
Feeding Behavior
Feeds
Female
Females
Food science
Gastrointestinal Microbiome
Gene expression
Gene sequencing
Genera
Geographical locations
Geography
Hygiene
Ileum
Intestinal microflora
Intestine
Intestines - microbiology
Iron
Male
Males
Medicine and Health Sciences
Metabolism
Microbiota (Symbiotic organisms)
Nutrition research
Nutritional aspects
People and Places
Physiological aspects
Poultry
Public health
Relative abundance
RNA, Ribosomal, 16S - genetics
rRNA 16S
Signaling
Studies
Taxa
Veterinary medicine
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Summary:Intestinal microbe-host interactions can affect the feed efficiency (FE) of chickens. As inconsistent findings for FE-associated bacterial taxa were reported across studies, the present objective was to identify whether bacterial profiles and predicted metabolic functions that were associated with residual feed intake (RFI) and performance traits in female and male chickens were consistent across two different geographical locations. At six weeks of life, the microbiota in ileal, cecal and fecal samples of low (n = 34) and high (n = 35) RFI chickens were investigated by sequencing the V3-5 region of the 16S rRNA gene. Location-associated differences in α-diversity and relative abundances of several phyla and genera were detected. RFI-associated bacterial abundances were found at the phylum and genus level, but differed among the three intestinal sites and between males and females. Correlation analysis confirmed that, of the taxonomically classifiable bacteria, Lactobacillus (5% relative abundance) and two Lactobacillus crispatus-OTUs in feces were indicative for high RFI in females (P < 0.05). In males, Ruminococcus in cecal digesta (3.1% relative abundance) and Dorea in feces (
ISSN:1932-6203
1932-6203
DOI:10.1371/journal.pone.0187766