Evidence map›Paper›PMID 33424820›Full record

ArticleFrontiers in microbiology2020

Comparison of Two Sampling Techniques for Evaluating Ruminal Fermentation and Microbiota in the Planktonic Phase of Rumen Digesta in Dairy Cows.

Camila Flavia de Assis Lage, Susanna Elizabeth Räisänen, Audino Melgar, Krum Nedelkov, Xianjiang Chen, Joonpyo Oh, Molly Elizabeth Fetter, Nagaraju Indugu, Joseph Samuel Bender, Bonnie Vecchiarelli and 3 more

Open access · goldAbstract read
In one paragraph

Article in Frontiers in microbiology, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 22 papers.

0numbers the graph read from it
0cells of the map it votes in
22citing papers in PubMed
7.4field-weighted citation impact, top 2% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

22 citing papers in PubMed, 58 citations in OpenAlex.

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  9. Gut Microbiota of Ruminants and Monogastric Livestock: An Overview.Animals : an open access journal from MDPI · 2025
    Review
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

13 authors at 2 institutions in 1 country.

Camila Flavia de Assis LageThe Pennsylvania State University, University Park, PA, United States.
Susanna Elizabeth RäisänenThe Pennsylvania State University, University Park, PA, United States.
Audino MelgarThe Pennsylvania State University, University Park, PA, United States.
Krum NedelkovThe Pennsylvania State University, University Park, PA, United States.
Xianjiang ChenThe Pennsylvania State University, University Park, PA, United States.
Joonpyo OhThe Pennsylvania State University, University Park, PA, United States.
Molly Elizabeth FetterThe Pennsylvania State University, University Park, PA, United States.
Nagaraju InduguDepartment of Clinical Studies-New Bolton Center, School of Veterinary Medicine, University of Pennsylvania, Kennett Square, PA, United States.
Joseph Samuel BenderDepartment of Clinical Studies-New Bolton Center, School of Veterinary Medicine, University of Pennsylvania, Kennett Square, PA, United States.
Bonnie VecchiarelliDepartment of Clinical Studies-New Bolton Center, School of Veterinary Medicine, University of Pennsylvania, Kennett Square, PA, United States.
Meagan Leslie HennessyDepartment of Clinical Studies-New Bolton Center, School of Veterinary Medicine, University of Pennsylvania, Kennett Square, PA, United States.
Dipti PittaDepartment of Clinical Studies-New Bolton Center, School of Veterinary Medicine, University of Pennsylvania, Kennett Square, PA, United States.
Alexander Nikolov HristovThe Pennsylvania State University, University Park, PA, United States.
Pennsylvania State University · USUniversity of Pennsylvania · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The objective of this experiment was to compare ruminal fluid samples collected through rumen cannula (RC) or using an oral stomach tube (ST) for measurement of ruminal fermentation and microbiota variables. Six ruminally cannulated lactating Holstein cows fed a standard diet were used in the study. Rumen samples were collected at 0, 2, 4, 6, 8, and 12 h after the morning feeding on two consecutive days using both RC and ST techniques. Samples were filtered through two layers of cheesecloth and the filtered ruminal fluid was used for further analysis. Compared with RC, ST samples had 7% greater pH; however, the pattern in pH change after feeding was similar between sampling methods. Total volatile fatty acids (VFA), acetate and propionate concentrations in ruminal fluid were on average 23% lower for ST compared with RC. There were no differences between RC and ST in VFA molar proportions (except for isobutyrate), ammonia and dissolved hydrogen (dH

Indexed as

non-invasive sampling techniquesrumen cannularumen fermentationrumen microbiomestomach tubestomach tube method

Identifiers

PMID33424820
PMCPMC7785721
OpenAlexW3113919722

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.