Evidence map›Paper›PMID 41619489›Full record

ArticlePoultry science2026

Milled and cryogenic micronised wheat bran inclusions stimulate fibre degradation and fermentation differently throughout the broiler's gastrointestinal tract.

Paulien Vanderghinste, An Bautil, Steven J Simmonds, Michael R Bedford, Gemma González-Ortiz, Christophe M Courtin

Abstract read
In one paragraph

Article in Poultry science, 2026. 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

6 authors.

Paulien VanderghinsteLaboratory of Food Chemistry and Biochemistry & Leuven Food Science and Nutrition Research Centre (LFoRCe), Department of Microbial and Molecular Systems (M²S), KU Leuven, 3001 Leuven, Belgium. Electronic address: paulien.vanderghinste@kuleuven.be.
An BautilLaboratory of Food Chemistry and Biochemistry & Leuven Food Science and Nutrition Research Centre (LFoRCe), Department of Microbial and Molecular Systems (M²S), KU Leuven, 3001 Leuven, Belgium.
Steven J SimmondsLaboratory of Food Chemistry and Biochemistry & Leuven Food Science and Nutrition Research Centre (LFoRCe), Department of Microbial and Molecular Systems (M²S), KU Leuven, 3001 Leuven, Belgium.
Michael R BedfordAB Vista, Marlborough, Wiltshire SN8 4AN, United Kingdom.
Gemma González-OrtizAB Vista, Marlborough, Wiltshire SN8 4AN, United Kingdom.
Christophe M CourtinLaboratory of Food Chemistry and Biochemistry & Leuven Food Science and Nutrition Research Centre (LFoRCe), Department of Microbial and Molecular Systems (M²S), KU Leuven, 3001 Leuven, Belgium.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Inclusion of fibre fractions in broiler feed can increase microbial short-chain fatty acid (SCFA) production upon fermentation, enhancing gut health and performance. The main site of fermentation is the caeca, and extensive particle size reduction of fibre fractions (< 100 µm) may increase their fermentability and influx into the caeca, extending the associated benefits. Coarser fibre fractions (> 400 µm) improve fermentation parameters as well, but are expected to act in the foregut (precaecal) as they seem too large to pass through the restricted caecal entrance. The mechanism behind the effect of different fibre particle sizes and their inclusion level on fibre degradation and fermentation is not yet fully understood. The role of fibre particle size along the gastrointestinal tract (GIT) and the possible increase of their effect with increasing inclusion level was studied by comparing 0.2% (L02) and 2% (L2) inclusion of coarse milled (452 µm, WB452) and cryogenically milled (27 µm, WB27) wheat bran in male Ross 308 broilers (570, d 1 to d 37) using a 2 × 2 factorial design. GIT parts, digesta and plasma samples were collected to measure GIT development, fibre degradation and fermentation, and gut health at d 10 and d 37. WB452 increased precaecal fibre degradation and fermentation through gizzard stimulation based on the decrease in gizzard pH and increase in ileal arabinoxylan digestion and ileal butyric acid content at d 37. Both bran sizes tended to increase the relative abundance of different SCFA-producing bacterial groups in the caeca at d 10, although this was not related to differences in caecal SCFA content. Inclusion level L02 had a stronger positive effect on caecal functioning and gut health through improving caecal lobe weight, rhamnose content and microbial composition and decreasing plasma d-lactate levels compared to L2. These results suggest that both fine and coarse fibre inclusions, particularly at a low inclusion level, can stimulate fibre fermentation through different mechanisms, highly depending on the GIT section and broiler age.

Indexed as

ChickensDietary FiberGastrointestinal TractAnimal FeedAnimal Nutritional Physiological PhenomenaAnimalsDietDigestionFermentationFood HandlingFood, ProcessedMaleParticle SizeDietary Fibercaecafermentationfibregizzardparticle size

Identifiers

PMID41619489
PMCPMC12874300

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
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.