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Developing flow cytometry for precise evaluation of amphibian sperm viability: technical report
Leah Jacobs1, Talisin Hammond1, Natalie Calatayud2
1San Diego Zoo Wildlife Alliance, Escondido, CA, USA.
Reproduction, Fertility, and Development
|February 14, 2025
Summary
Flow cytometry offers a reliable method for assessing amphibian sperm viability and concentration. This advanced technique provides a faster, more dependable alternative to traditional microscopy for sperm analysis.
Area of Science:
- Veterinary Science
- Reproductive Biology
- Amphibian Research
Background:
- Flow cytometry is increasingly used for cellular analysis in non-domestic animals.
- It shows potential for improving sperm quality assessment, concentration counts, and cell sorting efficiency.
Purpose of the Study:
- To validate flow cytometry for amphibian sperm analysis.
- To compare flow cytometry results with traditional microscopy methods for sperm quality.
Main Methods:
- Sperm samples from African clawed frogs (Xenopus laevis) were analyzed.
- Both flow cytometry with fluorescent probes and traditional microscopy were employed.
Main Results:
- Sperm concentrations showed high correlation between methods, with flow cytometry yielding higher estimates.
- Sperm viability measurements were not significantly correlated and differed slightly (~8%) between techniques.
Conclusions:
- Flow cytometry slightly overestimates amphibian sperm concentration and viability.
- Despite minor discrepancies, flow cytometry is a valuable and reliable tool for amphibian sperm assessment.
