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Updated: Apr 23, 2026
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Sperm Collection of Differential Quality Using Density Gradient Centrifugation
Published on: November 29, 2018
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Changes in bull sperm kinematics after single layer centrifugation
Y Yulnawati1, M C Abraham, D Laskowski
1Division of Reproduction, Department of Clinical Sciences, Swedish University of Agricultural Sciences (SLU), Uppsala, Sweden; Research Center for Biotechnology, Indonesian Institute of Sciences (LIPI), Cibinong, Bogor, Indonesia.
Reproduction in Domestic Animals = Zuchthygiene
|September 25, 2014
Summary
Single Layer Centrifugation (SLC) improved bull sperm kinematics, enhancing straightness and linearity without affecting total or progressive motility. This technique shows promise for improving sperm quality for artificial insemination.
Area of Science:
- Veterinary Science
- Reproductive Biology
- Sperm Motility Analysis
Background:
- Sperm quality is crucial for artificial insemination success.
- Centrifugation techniques can be used to select for more motile sperm populations.
- Single Layer Centrifugation (SLC) is a method for sperm separation.
Purpose of the Study:
- To evaluate the effect of Single Layer Centrifugation (SLC) on bull sperm kinematics.
- To determine if SLC improves sperm parameters relevant to fertilization.
Main Methods:
- Ejaculates from 20 bulls were processed using Single Layer Centrifugation (SLC) with Androcoll-B.
- Sperm kinematics were measured in both uncentrifuged and SLC-selected samples.
- Key kinematic parameters including motility, straightness, linearity, and velocity were analyzed.
Main Results:
- Total and progressive motility remained similar between uncentrifuged and SLC samples.
- SLC significantly increased sperm straightness (STR), linearity (LIN), and beat cross frequency (BCF).
- SLC significantly decreased average path velocity (VAP), curvilinear velocity (VCL), amplitude of lateral head deviation (ALH), and hypermotility.
Conclusions:
- Single Layer Centrifugation (SLC) does not directly impact total or progressive bull sperm motility.
- SLC positively influences specific kinematic parameters, potentially enhancing fertilization capacity.
- The kinematic improvements from SLC were most pronounced in samples with initially poorer motility.
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