Evidence map›Paper›PMID 42101539›Full record

ReviewTropical animal health and production2026

A bibliometric review about scientific trends and advances on residual feed intake (RFI) and feed efficiency in ruminants.

Josiel Ferreira, Lucas Ferreira Gonçalves, Tiago do Prado Paim, Sarah Figueiredo Martins Bonilha, Joslaine Noely Dos Santos Goncalves Cyrillo, Maria Eugênia Zerlotti Mercadante, Renata Helena Branco Arnandes, Ricardo Lopes Dias da Costa, Concepta McManus

Abstract readReview
PubMed Full text at PMC Publisher
In one paragraph

Review in Tropical animal health and production, 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. Review
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

9 authors.

Josiel FerreiraInstituto Federal de Educação, Ciência e Tecnologia Goiano, Campus Campos Belos, GO-118 Highway, Qd. 1-A, Lt. 1, Novo Horizonte District, Campos Belos, GO, 73840-000, Brazil. josiel.ferreira@ifgoiano.edu.br.ORCID http://orcid.org/0000-0002-5927-0545
Lucas Ferreira GonçalvesInstituto Federal de Educação, Ciência e Tecnologia Goiano, Campus Iporá, GO, 75200-000, Brazil.
Tiago do Prado PaimDepartamento de Pesca e Aquicultura, Empresa Brasileira de Pesquisa Agropecuária (EMBRAPA), Palmas, TO, 77008-900, Brazil.
Sarah Figueiredo Martins BonilhaCentro de Pesquisa Pecuária Sustentável, Instituto de Zootecnia, Sertãozinho, SP, 14174-000, Brazil.
Joslaine Noely Dos Santos Goncalves CyrilloCentro de Pesquisa Pecuária Sustentável, Instituto de Zootecnia, Sertãozinho, SP, 14174-000, Brazil.
Maria Eugênia Zerlotti MercadanteCentro de Pesquisa Pecuária Sustentável, Instituto de Zootecnia, Sertãozinho, SP, 14174-000, Brazil.
Renata Helena Branco ArnandesCentro de Pesquisa Pecuária Sustentável, Instituto de Zootecnia, São José do Rio Preto, SP, 15130-000, Brazil.
Ricardo Lopes Dias da CostaCentro de Pesquisa e Desenvolvimento de Zootecnia Diversificada, Instituto de Zootecnia, Nova Odessa, SP, 1338-0011, Brazil.
Concepta McManusUniversidade de Brasília (UnB), Campus Darcy Ribeiro, Brasília, DF, 70910-900, Brazil.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The increasing demand for sustainable livestock production systems has intensified scientific interest in feed efficiency traits, particularly residual feed intake (RFI), as a strategy to improve productivity while reducing environmental impacts. This study provides a comprehensive bibliometric assessment of global scientific production on RFI and feed efficiency in ruminants. A total of 2632 documents indexed in Scopus and Web of Science databases between 2015 and 2024 were analyzed, covering 374 scientific sources and involving 8,406 authors. Scientific output showed a strong and consistent upward trend throughout the study period, with an annual growth rate of 48.9%, particularly from 2019 onwards. Brazil, United States, Australia, Canada, and China were identified as the leading contributors to research development in this field. Authorship patterns revealed a highly collaborative research structure, with an average of 6.97 co-authors per publication, reflecting the interdisciplinary nature of feed efficiency studies. Keyword co-occurrence and network analyses highlighted the close integration of RFI research with themes related to sustainability, methane emissions, genetics, nutrition, and rumen biology. Overall, the results indicate that research on RFI has evolved from a predominantly zootechnical indicator toward a consolidated and sustainability-oriented scientific domain, reinforcing its strategic importance for the development of climate-smart ruminant production systems.

Indexed as

Animal FeedAnimal HusbandryEatingRuminantsAnimal Nutritional Physiological PhenomenaAnimalsBibliometricsCattleGenetic improvementMethane emissionSheepSustainability

Identifiers

PMID42101539
PMCPMC13156188

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.