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Effect of e-learning training on technical performance for bovine sperm morphology analysis in a multi-laboratory
Leonardo F C Brito1, Clara González-Marín1, Pablo J Ross1
1STgenetics, 22575 State Hwy 6 S, Navasota, TX, 77868, USA.
Theriogenology
|October 1, 2025
Summary
E-learning training significantly improved bovine sperm morphology analysis accuracy among technicians. However, to maintain optimal performance, biannual retraining and assessment are recommended for consistent, precise results.
Area of Science:
- Veterinary reproduction andrology
- Animal breeding and genetics
- Reproductive technologies
Background:
- Sperm morphology analysis is crucial for bovine semen evaluation.
- Significant inter-laboratory variations in sperm morphology analysis results are a known issue.
- Standardization of sperm morphology assessment is needed to improve data reliability.
Purpose of the Study:
- To evaluate the effectiveness of e-learning training in standardizing bovine sperm morphology analysis.
- To assess the impact of e-learning on technician performance in a multi-laboratory setting.
- To determine the long-term effects of training on accuracy and consistency.
Main Methods:
- Experiment I: 40 technicians from 10 laboratories assessed digital sperm images before and after e-learning training.
- Experiment II: 8 technicians from 6 laboratories evaluated frozen-thawed semen samples using reference standards.
- Performance was measured by assessment scores and intra-technician/intra-batch coefficients of variation (CV). Bland-Altman plots analyzed agreement.
Main Results:
- Technician assessment scores improved significantly (P < 0.05) immediately after training.
- Intra-technician CV for normal sperm decreased post-training and remained low at six months.
- Bland-Altman analysis showed mean differences close to zero, indicating good agreement.
Conclusions:
- E-learning training effectively enhanced technician performance in bull sperm morphology analysis.
- Standardized procedures by trained technicians yield precise results for normal sperm morphology.
- Biannual retraining is suggested for sustained optimal performance; simple classification may be more robust.
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