Starch-Rich Diet Induced Rumen Acidosis and Hindgut Dysbiosis in Dairy Cows of Different Lactations.
fecal-microbiome
fecal-pH
high-concentrate
hindgut-acidosis
parity
short-chain-fatty-acids
subacute-rumen-acidosis
Journal
Animals : an open access journal from MDPI
ISSN: 2076-2615
Titre abrégé: Animals (Basel)
Pays: Switzerland
ID NLM: 101635614
Informations de publication
Date de publication:
23 Sep 2020
23 Sep 2020
Historique:
received:
05
08
2020
revised:
17
09
2020
accepted:
19
09
2020
entrez:
26
9
2020
pubmed:
27
9
2020
medline:
27
9
2020
Statut:
epublish
Résumé
Starch-rich diets can cause subacute ruminal acidosis (SARA) in dairy cows with potentially different susceptibility according to lactation number. We wanted to evaluate the bacterial community and the fermentation end products in feces to study susceptibility to hindgut acidosis and dysbiosis. Sixteen dairy cows received a medium-concentrate diet (MC, 40% concentrate, 18.8% starch) for one week and a high-concentrate diet (HC, 60% concentrate, 27.7% starch, DM) for four weeks. Milk yield, dry-matter intake, chewing activity, ruminal pH, milk constituents, and fecal samples for short-chain fatty acids (SCFA), pH, and 16S rRNA-gene sequencing were investigated. The HC feeding caused a reduction in fecal pH, bacterial diversity and richness, an increase in total SCFA, and a separate phylogenetic clustering of MC and HC samples. Ruminal and fecal pH had fair correlation (
Identifiants
pubmed: 32977653
pii: ani10101727
doi: 10.3390/ani10101727
pmc: PMC7598178
pii:
doi:
Types de publication
Journal Article
Langues
eng
Subventions
Organisme : Österreichische Forschungsförderungsgesellschaft
ID : 843543
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