Evidence map›Paper›PMID 40097456›Full record

ArticleNPJ science of food2025

Vitamin A concentration in bovine liver and milk does not only depend on characteristics of the farming system.

Kirsten Schulz, Martin Bachmann, Jens Raila, Ruth Schmitt, Rudolf Staufenbiel, Heiko Scholz, Monika Wensch-Dorendorf, Sebastian Ptok, Anke Weissenborn, Robert Pieper

Abstract read
In one paragraph

Article in NPJ science of food, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing papers in PubMed
–field-weighted citation impact
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

1 citing paper in PubMed.

  1. Article
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

10 authors.

Kirsten Schulz *German Federal Institute for Risk Assessment (BfR), Berlin, Germany.
Martin Bachmann *German Federal Institute for Risk Assessment (BfR), Berlin, Germany. martin.bachmann@bfr.bund.de.
Jens RailaInstitute for Nutritional Science, University of Potsdam, Nuthetal, Germany.
Ruth SchmittRuminant and Swine Clinic, Freie Universität Berlin, Berlin, Germany.
Rudolf StaufenbielRuminant and Swine Clinic, Freie Universität Berlin, Berlin, Germany.
Heiko ScholzProfessor Hellriegel Institute e.V., Anhalt University of Applied Sciences, Bernburg, Germany.
Monika Wensch-DorendorfInstitute of Agricultural and Nutritional Sciences, Martin Luther University Halle-Wittenberg, Halle (Saale), Germany.
Sebastian PtokGerman Federal Institute for Risk Assessment (BfR), Berlin, Germany.
Anke WeissenbornGerman Federal Institute for Risk Assessment (BfR), Berlin, Germany.
Robert PieperGerman Federal Institute for Risk Assessment (BfR), Berlin, Germany.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The study examined the vitamin A status in commercially managed suckler cows and lactating dairy cows and identified primary influencing factors. Liver retinyl ester concentrations were higher in multiparous than primiparous cows (p < 0.01). Pasture availability was associated with higher β-carotene concentrations (p < 0.001). In dairy cows, pasture access during the dry period did not affect any of the parameters assayed. β-Carotene and retinol in milk increased with parity. No vitamin A deficiency or hypervitaminosis A was detected. Liver and milk retinol and retinyl ester concentrations that were analysed in the present study and data from a recent German total diet study were used to estimate the exposure to preformed vitamin A in vulnerable groups (children, 0.5-5 years). 95th percentiles of preformed vitamin A intake do not exceed tolerable upper intake levels in individuals between 1 year and 5 years, but in infants 6 to 12 months of age.

Identifiers

PMID40097456
PMCPMC11914524

What OpenQuestion holds

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Registered trials

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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.