Jorge Alfaro Alfaro-Velasco

Prof. Jorge Alfaro Alfaro-Velasco


Research Focus & Metrics

Academic Career Length

4Years (2023-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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21 October 2025 in Veterinary Sciences
Verified
Journal Article
Open access
PDF file
FBFrancisco Sevilla Benavides
Francisco Sevilla Benavides
JAJosé Ignacio Araya-Zúñiga
José Ignacio Araya-Zúñiga
AMAbel Mendez-Porras
Abel Mendez-Porras
JAJorge Alfaro Alfaro-Velasco
Jorge Alfaro Alfaro-Velasco
EJEfren Jiménez-Delgado
Efren Jiménez-Delgado
Anthony ValverdeAnthony Valverde
Anthony Valverde
Sperm morphology analysis is critical for assessing bovine fertility, since it provides insight into bull reproductive potential as well as subfertility and infertility. Traditional sperm morphology analysis is time-consuming, subjective, and prone to human error, all of which highlight the need for automated, objective solutions. This study presents the design and implementation of a computer-aided system for bovine sperm morphology analysis, leveraging deep learning models to detect and classify sperm cells based on their morphological characteristics. Using micrographs of bull sperm, we present a sequential deep learning framework that automatically detects morphological sperm aberrations. The model segments and analyzes each cell, identifying defects in the head, neck/midpiece, tail, and residual cytoplasm. Specifically, the system employs the YOLOv7 object detection framework, trained on a dataset of 277 annotated images comprising six morphological categories, to automatically identify and classify sperm abnormalities. The experimental results demonstrate a global mAP@50 of 0.73, precision of 0.75, and recall of 0.71, indicating a balanced tradeoff between accuracy and efficiency. By reducing reliance on manual analysis, this work enhances efficiency and accuracy in animal reproduction laboratories, contributing to veterinary reproduction through a cost-effective and scalable solution for sperm quality assessment.

3 September 2025
Verified
Book Chapter
Closed access
PDF file
EJE. Jiménez-Delgado
E. Jiménez-Delgado
CQChristian Quesada-López
Christian Quesada-López
AMA. Méndez-Porras
A. Méndez-Porras
JAJorge Alfaro Alfaro-Velasco
Jorge Alfaro Alfaro-Velasco
JQJ. Quesada-Sánchez
J. Quesada-Sánchez
ANA. Núñez-Solano
A. Núñez-Solano

2 January 2026
Verified
Book Chapter
Closed access
PDF file
EDE. Jiménez Delgado
E. Jiménez Delgado
CQChristian Quesada-López
Christian Quesada-López
FCF. Castro Caicedo
F. Castro Caicedo
HMH. Cabrera Meza
H. Cabrera Meza
AMAbel Mendez-Porras
Abel Mendez-Porras
JRJ. Rodríguez-Salas
J. Rodríguez-Salas


2 January 2026
Verified
Book Chapter
Closed access
PDF file
EJE. Jime´nEz-Delgado
E. Jime´nEz-Delgado
CQChristian Quesada-López
Christian Quesada-López
AMAbel Mendez-Porras
Abel Mendez-Porras
JAJorge Alfaro Alfaro-Velasco
Jorge Alfaro Alfaro-Velasco
NMN. Murillo-Rojas
N. Murillo-Rojas

29 July 2025
Verified
Book Chapter
Closed access
PDF file
EJE. Jiménez-Delgado
E. Jiménez-Delgado
AMAbel Mendez-Porras
Abel Mendez-Porras
SBSixto Enrique Campaña Bastidas
Sixto Enrique Campaña Bastidas
LCLuis-Alexander Calvo-Valverde
Luis-Alexander Calvo-Valverde
JAJorge Alfaro Alfaro-Velasco
Jorge Alfaro Alfaro-Velasco
JRJ. Rodriguez-Salas
J. Rodriguez-Salas