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Comparison between the conventional method and the simple desiccation method in porcine sperm processing for scanning
1Department of Cell Biology and Physiology, Estudi General de Girona, UAB, Hospital, Spain.
Abstract:
Sperm quality has been studied using different microscopic methods. Light microscopy gives similar percentages of sperm typologies (mature, immature and aberrant) as scanning electron microscope (SEM) techniques using both normal (critical-point drying) and simple desiccation techniques. Artefactual forms, which are easily recognizable, are not taken into account. The artefactual forms observed by the simple desiccation SEM method were spermatozoa with tails folded in a simple loop, and spermatozoa with short tails coiled at their extreme. The simple desiccation SEM method is a useful and rapid technique for the testing of porcine sperm quality.
Insights
Scanning electron microscopy (SEM) offers a rapid method for assessing porcine sperm quality. Simple desiccation SEM accurately identifies sperm typologies and artefactual forms, proving useful for quality testing.
Area of Science:
- Reproductive biology
- Microscopy techniques
- Animal science
Background:
- Sperm quality assessment is crucial for reproductive efficiency.
- Microscopic methods are commonly employed for sperm analysis.
- Evaluating sperm typologies and identifying artefacts are key aspects of quality control.
Purpose of the Study:
- To compare light microscopy with scanning electron microscopy (SEM) for sperm quality assessment.
- To evaluate the effectiveness of simple desiccation SEM in identifying porcine sperm typologies and artefacts.
- To determine the utility of simple desiccation SEM as a rapid technique for porcine sperm quality testing.
Main Methods:
- Comparison of sperm typology percentages obtained via light microscopy and SEM.
- Utilizing critical-point drying and simple desiccation techniques with SEM.
- Observation and characterization of artefactual sperm forms using SEM.
Main Results:
- Light microscopy and SEM yielded similar percentages for mature, immature, and aberrant sperm typologies.
- Simple desiccation SEM identified specific artefactual forms: looped tails and coiled tail extremes.
- Artefactual forms were easily recognizable and distinct from true sperm typologies.
Conclusions:
- Simple desiccation SEM is a valuable and rapid method for assessing porcine sperm quality.
- SEM techniques, particularly simple desiccation, provide reliable identification of sperm morphology and artefacts.
- This method aids in accurate evaluation of sperm quality in swine reproduction.