Evidence map›Paper›PMID 40860921›Full record

ArticleFrontiers in veterinary science2025

Effect of age and scrotal circumference on sperm morphology in Brahman bulls using a modified fixation technique.

Francisco Sevilla, Ignacio Araya-Zúñiga, Arcesio Salamanca-Carreño, Miguel A Silvestre, Julio Rodríguez, Kenneth Matamoros, Rafael Molina-Montero, Luis C Carranza-Rojas, Eduardo R S Roldan, Anthony Valverde

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Article in Frontiers in veterinary science, 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.

Francisco SevillaDoctorado en Ciencias Naturales para el Desarrollo (DOCINADE), Instituto Tecnológico de Costa Rica, Universidad Nacional, Universidad Estatal a Distancia, Alajuela, Costa Rica.
Ignacio Araya-ZúñigaLaboratory of Animal Reproduction, School of Agronomy, Research and Development Center for Sustainable Agriculture in the Humid Tropics, Costa Rica Institute of Technology San Carlos Campus, Alajuela, Costa Rica.
Arcesio Salamanca-CarreñoFaculty of Veterinary Medicine and y Zootechnics, Cooperative University of Colombia, Villavicencio, Colombia.
Miguel A SilvestreDepartament de Biologia Cellular, Biologia Funcional i Antropologia Física, Universitat de València, Valencia, Spain, 6 School of Agronomy, Agricultural Production Program (PPA), Costa Rica Institute of Technology, Alajuela, Costa Rica.
Julio RodríguezSchool of Agronomy, Agricultural Production Program (PPA), Costa Rica Institute of Technology San Carlos Campus, Alajuela, Costa Rica.
Kenneth MatamorosLaboratory of Animal Reproduction, School of Agronomy, Research and Development Center for Sustainable Agriculture in the Humid Tropics, Costa Rica Institute of Technology San Carlos Campus, Alajuela, Costa Rica.
Rafael Molina-MonteroSchool of Agronomy, Agricultural Production Program (PPA), Costa Rica Institute of Technology San Carlos Campus, Alajuela, Costa Rica.
Luis C Carranza-RojasLaboratory of Animal Reproduction, School of Agronomy, Research and Development Center for Sustainable Agriculture in the Humid Tropics, Costa Rica Institute of Technology San Carlos Campus, Alajuela, Costa Rica.
Eduardo R S RoldanDepartment of Biodiversity and Evolutionary Biology, Museo Nacional de Ciencias Naturales (CSIC), Madrid, Spain.
Anthony ValverdeLaboratory of Animal Reproduction, School of Agronomy, Research and Development Center for Sustainable Agriculture in the Humid Tropics, Costa Rica Institute of Technology San Carlos Campus, Alajuela, Costa Rica.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Sperm morphology (form and size of sperm) analysis is useful for evaluating bull fertility and diagnosing reproductive performance. An advanced age is associated with a higher frequency of morphological sperm anomalies; however, there is limited information on the effect of aging and scrotal circumference on sperm morphological defects in Brahman cattle. The objective of this study was to investigate changes related to age and scrotal circumference on sperm morphology in Brahman bulls in Costa Rica. Brahman bulls are traditionally used in Costa Rican production systems. Sperm morphology was evaluated in 51 Brahman bulls from six age groups (< 24, 24-36, 37-48, 49-60, 61-72, and >72 months old) and scrotal circumference (32-36, 37-41, 42-46, and > 47 cm). The Trumorph

Indexed as

Brahmanreproductionsemen analysisspermatozoasperm quality

Identifiers

PMID40860921
PMCPMC12371937

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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.