Evidence map›Paper›PMID 40003077›Full record

ArticleAnimals : an open access journal from MDPI2025

Meta-Analysis of Dietary Tannins in Small Ruminant Diets: Effects on Growth Performance, Serum Metabolites, Antioxidant Status, Ruminal Fermentation, Meat Quality, and Fatty Acid Profile.

Asma Al Rharad, Soufiane El Aayadi, Claire Avril, Alassane Souradjou, Fafa Sow, Younouss Camara, Jean-Luc Hornick, Soumaya Boukrouh

Abstract read
In one paragraph

Article in Animals : an open access journal from MDPI, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 34 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
34citing papers in PubMed, 1 pooled it
–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

34 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
  2. Effects ofAnimals : an open access journal from MDPI · 2026
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  14. Synbiotic Diet PreventsCurrent issues in molecular biology · 2026
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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

8 authors.

Asma Al RharadLaboratory of Physical-Chemistry of Materials, Natural Substances and Environment, Department of Chemistry, Faculty of Science and Technology, Abdelmalek Essâadi University, Tangier 90000, Morocco.ORCID 0009-0000-1595-1472
Soufiane El AayadiAnimal Production Department, Institut Agronomique et Veterinaire Hassan II, Medinat Al Irfane, Rabat 10112, Morocco.ORCID 0000-0002-1398-0402
Claire AvrilAgroBiosciences et Chimie, Haute École Provinciale de Hainaut Condorcet, 7800 Ath, Belgium.ORCID 0009-0006-8838-1347
Alassane SouradjouDepartment of Veterinary Management of Animal Resources, Faculty of Veterinary Medicine, University of Liège, 4000 Liège, Belgium.ORCID 0000-0003-3488-4660
Fafa SowSenegalese Institute for Agricultural Research (ISRA), Dakar PB 3120, Senegal.ORCID 0000-0002-8942-4138
Younouss CamaraDépartement Productions Animales et Élevage (PAE), UFR Sciences Agronomiques, Aquaculture et Transformation Agroalimentaire (S2ATA), Université Gaston Berger, Saint-Louis BP 234, Senegal.ORCID 0000-0003-1664-4962
Jean-Luc HornickDepartment of Veterinary Management of Animal Resources, Faculty of Veterinary Medicine, University of Liège, 4000 Liège, Belgium.ORCID 0000-0003-1831-1440
Soumaya BoukrouhDepartment of Veterinary Management of Animal Resources, Faculty of Veterinary Medicine, University of Liège, 4000 Liège, Belgium.ORCID 0000-0002-4316-7818

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Tannins are secondary metabolites naturally present in various plants as a defense mechanism. In animal nutrition, they play a dual role, acting as both antinutritional factors and bioactive agents, with potential benefits in nutrient metabolism and product quality. This meta-analysis aimed to evaluate the effects of dietary tannin on nutrient intake and digestibility, blood serum metabolite levels, growth performance, carcass characteristics, and meat quality in small ruminants. Ninety-seven studies were included in this meta-analysis. The effects of tannins were analyzed using a random-effects model to determine the weighted mean difference between treatments with tannins and the control (without tannins). Publication bias and heterogeneity between studies were explored, and meta-regression and subgroup analyses were performed. The results indicated that tannin significantly increased the intake of dry matter, crude protein, nitrogen (N), fecal N, and meat fatty acids (FA), such as C18:2 ω6, C18:3 ω3, C20:4 ω6, C20:5 ω3, total ω3 and ω6 FA, and total polyunsaturated FA (PUFA). However, NH

Indexed as

antioxidantdigestibilityfatty acid profilegoatintakemeat qualitysheeptannins

Identifiers

PMID40003077
PMCPMC11851383

What OpenQuestion holds

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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.