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Related Experiment Videos

Semen evaluation in capuchin monkeys (Cebus apella)

D E Bush, L H Russell, A I Flowers

    Laboratory Animal Science
    |October 1, 1975
    PubMed
    Summary

    Evaluating capuchin monkey semen (Cebus appella) required enzymatic liquefaction due to coagulation. Pronase proved more effective than trypsin for semen analysis, yielding results comparable to naturally collected samples.

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    Area of Science:

    • Primate reproductive biology
    • Veterinary andrology

    Background:

    • Semen collection and evaluation are crucial for understanding primate reproductive health.
    • Capuchin monkey (Cebus appella) semen often presents as a coagulum, posing challenges for traditional analysis.

    Purpose of the Study:

    • To establish effective methods for collecting and evaluating capuchin monkey semen.
    • To compare enzymatic liquefaction techniques for semen analysis.
    • To validate artificial collection methods against natural mating outcomes.

    Main Methods:

    • Semen was collected from adult male capuchin monkeys using an electroejaculator.
    • Enzymatic liquefaction was performed using trypsin and subsequently pronase solutions.
    • Semen parameters (consistency, volume, sperm concentration) were evaluated.
    • Natural mating was conducted, and vaginal semen samples were collected for comparison.

    Main Results:

    • Initial electroejaculation yielded no liquid fraction, necessitating enzymatic liquefaction.
    • Trypsin resulted in high spermatozoan abnormalities.
    • A 1% pronase solution in Eagle's medium improved semen quality.
    • Artificially collected semen showed similar characteristics to naturally collected samples.

    Conclusions:

    • Enzymatic liquefaction, particularly with pronase, is essential for capuchin monkey semen evaluation.
    • Artificial collection methods can yield reliable semen data comparable to natural mating.
    • This study provides a foundation for reproductive assessments in capuchin monkeys.

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