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Effects of dietary supplementation with two alternatives to antibiotics on intestinal microbiota of preweaned calves challenged with Escherichia coli K99

Scientific reports, 2017-07, Vol.7 (1), p.5439-12, Article 5439 [Peer Reviewed Journal]

Copyright Nature Publishing Group Jul 2017 ;The Author(s) 2017 ;ISSN: 2045-2322 ;EISSN: 2045-2322 ;DOI: 10.1038/s41598-017-05376-z ;PMID: 28710379

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Title:
Effects of dietary supplementation with two alternatives to antibiotics on intestinal microbiota of preweaned calves challenged with Escherichia coli K99
Author: Bi, Yanliang ; Yang, Chuntao ; Diao, Qiyu ; Tu, Yan
Subjects: Abundance ; Animal Feed - analysis ; Animals ; Antibiosis - genetics ; Antibiotics ; Bacterial Typing Techniques ; Bacteroidetes - classification ; Bacteroidetes - genetics ; Bacteroidetes - isolation & purification ; Candida tropicalis - physiology ; Cattle ; Cattle Diseases - diet therapy ; Cattle Diseases - microbiology ; Cattle Diseases - pathology ; Diarrhea ; Diarrhea - diet therapy ; Diarrhea - microbiology ; Diarrhea - pathology ; Diarrhea - veterinary ; Diet ; Dietary Supplements ; E coli ; Enterococcus - classification ; Enterococcus - genetics ; Enterococcus - isolation & purification ; Escherichia coli ; Escherichia coli - genetics ; Escherichia coli - growth & development ; Escherichia coli - pathogenicity ; Escherichia coli Infections - diet therapy ; Escherichia coli Infections - microbiology ; Escherichia coli Infections - pathology ; Escherichia coli Infections - veterinary ; Feces - microbiology ; Feed efficiency ; Flavonoids ; Flavonoids - administration & dosage ; Gastrointestinal Microbiome - genetics ; Intestinal microflora ; Intestine ; Lactobacillus - classification ; Lactobacillus - genetics ; Lactobacillus - isolation & purification ; Leaves ; Male ; Morus - chemistry ; Plant Leaves - chemistry ; Polymerase Chain Reaction ; Prevotella - classification ; Prevotella - genetics ; Prevotella - isolation & purification ; Proteobacteria - classification ; Proteobacteria - genetics ; Proteobacteria - isolation & purification ; Supplementation ; Weaning
Is Part Of: Scientific reports, 2017-07, Vol.7 (1), p.5439-12, Article 5439
Description: The aim of this study was to investigate the effects of dietary supplementation with two alternatives to antibiotics (Candida tropicalis and mulberry leaf flavonoids) on intestinal microbiota of preweaned calves challenged with Escherichia coli K99. Sixty Holstein calves were randomly assigned to 5 treatments: fed a basal diet (N-CON); fed a basal diet and challenged with E.coli K99 (P-CON); fed a basal diet supplemented with C.tropicalis (CT), mulberry leaf flavonoids (MLF), and the combination of the two additives (CM), respectively, and challenged with E.coli K99. The MLF and CM groups had significantly higher average daily grain and feed efficiency, and significantly lower fecal scores compared with the P-CON group after E. coli K99 challenge. The supplementation groups increased the relative abundance, at the phylum level, of Bacteroidetes and Proteobacteria, whereas at the genus level, they increased the relative abundance of Prevotella, Lactobacillus, and Enterococcus. Quantitative PCR revealed that the CT, MLF, and CM groups had significantly lower copy numbers of E.coli K99 compared with the P-CON group. The CT, MLF, and CM treatments reduce days of diarrhea, improve intestinal health, and beneficially manipulate the intestinal microbiota in preweaned calves.
Publisher: England: Nature Publishing Group
Language: English
Identifier: ISSN: 2045-2322
EISSN: 2045-2322
DOI: 10.1038/s41598-017-05376-z
PMID: 28710379
Source: MEDLINE
PubMed Central
ProQuest Central
DOAJ Directory of Open Access Journals

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Effects of dietary supplementation with two alternatives to antibiotics on intestinal microbiota of preweaned calves challenged with Escherichia coli K99

Copyright Nature Publishing Group Jul 2017 ;The Author(s) 2017 ;ISSN: 2045-2322 ;EISSN: 2045-2322 ;DOI: 10.1038/s41598-017-05376-z ;PMID: 28710379

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