Evidence map›Paper›PMID 41147686›Full record

ArticleJournal of animal physiology and animal nutrition2026

Increasing Rumen Microbial Diversity in Goats Favours the Adaptation to High-Concentrate Diets With Minor Effects on Feed Utilization.

Alejandro Belanche, Juan Manuel Palma-Hidalgo, David R Yáñez-Ruiz

Abstract readRandomized Controlled Trial, Veterinary
In one paragraph

Article in Journal of animal physiology and animal nutrition, 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

3 authors.

Alejandro BelancheEstación Experimental del Zaidín (CSIC), Granada, Spain.ORCID https://orcid.org/0000-0001-5880-6021
Juan Manuel Palma-HidalgoEstación Experimental del Zaidín (CSIC), Granada, Spain.
David R Yáñez-RuizEstación Experimental del Zaidín (CSIC), Granada, Spain.ORCID https://orcid.org/0000-0003-4397-3905

Funding

This study was funded by the Spanish State Research Agency (AEI) through the project AGL2017-86938 and the Ramón y Cajal research contract RYC2019-027764-I funding A. B.
6 · The paper itself

Abstract

Evolution has enabled ruminants to develop a complex rumen microbiota that aids in the digestion of fibrous feeds. This study examines whether promoting a highly diverse rumen microbiota during early life continues to offer long-term benefits in modern dairy production systems, where young ruminants are reared without exposure to adult ruminants and are fed high-concentrate diets. A total of 36 newborn goat kids were divided in 4 groups. During the first 10 weeks of age, animals were daily inoculated with autoclaved rumen fluid (AUT), fresh rumen fluid from adult goats fed forage (RFF), or concentrate diet (RFC), or received no inoculation (CTL). At 29 weeks of age, following an 18-week wash out period, the animals were shifted from a full-forage to a high-concentrate diet to assess their ability to adapt and digest this later diet. Results revealed that early life inoculation with fresh rumen fluid had a lasting effect on the rumen microbiota, promoting higher bacterial (+93 OTUs), methanogens (+5 OTUs) and protozoal diversity (+23 OTUs), whereas CTL animals remained protozoa-free. This superior microbial complexity accelerated the adaptation to high-concentrate diets, decreased digestive disorders (rumen acidosis and diarrhoea) and increased BW gain. Once adapted to the diet, inoculated animals exhibited higher rumen VFA concentration (+16%), blood glucose (+28%), rumen papillae width (+43%) and increased expression of rumen epithelium genes involved in the cell proliferation (Cyclin 1), VFA absorption (MCCT1) and VFA metabolism (HMGCL), suggesting an enhanced energy uptake capacity. Inoculation with autoclaved rumen fluid as source of VFA had lower long-term effects compared to fresh inocula. No differences across treatments were noted for feed digestibility, N excretion, and microbial protein synthesis. In conclusion, promoting greater rumen microbial diversity is a desirable strategy to prevent digestive disorders during the adaptation process to high-concentrate diets, having minor effects once the animals are adapted to this diet.

Indexed as

Animal FeedDietGastrointestinal MicrobiomeGoatsRumenAdaptation, PhysiologicalAnimal Nutritional Physiological PhenomenaAnimalsanaerobic fungicaecal microbiotafeed utilizationgene expressionmethanogensprotozoaruminants

Identifiers

PMID41147686
PMCPMC12824430

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.