Dynamic changes of the fecal bacterial community in dairy cows during early lactation
The dynamics of the community structure and composition of the dairy cow fecal bacterial communities during early lactation is unclear, therefore this study was conducted to characterize the fecal bacterial communities in dairy cows during early lactation using 16S rRNA gene sequencing. Feces were s...
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Published in | AMB Express Vol. 10; no. 1; p. 167 |
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Main Authors | , , , , , |
Format | Journal Article |
Language | English |
Published |
Berlin/Heidelberg
Springer Berlin Heidelberg
17.09.2020
Springer Nature B.V SpringerOpen |
Subjects | |
Online Access | Get full text |
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Summary: | The dynamics of the community structure and composition of the dairy cow fecal bacterial communities during early lactation is unclear, therefore this study was conducted to characterize the fecal bacterial communities in dairy cows during early lactation using 16S rRNA gene sequencing. Feces were sampled from 20 healthy fresh Holstein dairy cows on day 1 (Fresh1d group) and day 14 (Fresh14d group) after calving. After calving, cows were fed the same fresh diet. The dominant phyla
Firmicutes
and
Proteobacteria
were decreased (
P
≤ 0.01) with lactating progress and phyla
Bacteroidetes
were increased (
P
= 0.008) with lactating progress and dietary transition. At family level, the predominant families were
Ruminococcaceae
(35.23%),
Lachnospiraceae
(11.46%),
Rikenellaceae
(10.44%) and
Prevotellaceae
(6.89%). A total of 14 genera were different between fecal samples from Fresh1d and Fresh14d, included the predominant genera, such as
Ruminococcaceae_UCG
-
005
(
P
= 0.008),
Rikenellaceae_RC9_gut_group
(
P
= 0.043) and
Christensenellaceae_R
-
7_group
(
P
= 0.008). All fecal bacterial communities shared members of the genera
Ruminococcaceae_UCG
-
005
,
Bacteroides
and
Rikenellaceae_RC9_gut_group
. These findings help to improve our understanding of the composition and structure of the fecal microbial community in fresh cows and may provide insight into bacterial adaptation time and dietary in lactating cows. |
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Bibliography: | ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 23 |
ISSN: | 2191-0855 2191-0855 |
DOI: | 10.1186/s13568-020-01106-3 |