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Sperm Collection of Differential Quality Using Density Gradient Centrifugation
03:28

Sperm Collection of Differential Quality Using Density Gradient Centrifugation

Published on: November 29, 2018

Single layer centrifugation of stallion spermatozoa improves sperm quality compared with sperm washing

J M Morrell1, H Rodriguez-Martinez, A Johannisson

  • 1Department of Clinical Sciences, Division of Reproduction, Swedish University of Agricultural Sciences, Box 7054, SE-75007 Uppsala, Sweden. jane.morrell@kv.slu.se

Reproductive Biomedicine Online
|August 3, 2010
PubMed

Insights

Single layer centrifugation (SLC) significantly improved stallion semen quality compared to simple extension or sperm washing. Adding seminal plasma (SP) did not enhance sperm motility and could be detrimental during cold storage.

Area of Science:

  • Reproductive Biology
  • Animal Science
  • Veterinary Medicine

Background:

  • Optimizing semen handling is crucial for artificial insemination success in stallions.
  • Different semen preparation techniques can impact sperm quality and viability.

Purpose of the Study:

  • To compare the effects of semen extension, single layer centrifugation (SLC), and sperm washing on stallion semen quality.
  • To evaluate the influence of seminal plasma (SP) addition on semen quality after SLC.

Main Methods:

  • Stallion ejaculates were processed using three methods: extension, SLC, and sperm washing.
  • Semen quality was assessed using computer-assisted sperm analysis (motility), NucleoCounter SP-100 (membrane integrity), and sperm chromatin structure assay (chromatin integrity).
  • Seminal plasma was added to some SLC samples at varying concentrations.

Main Results:

  • SLC significantly improved sperm motility, membrane integrity, and chromatin integrity compared to simple extension.
  • Sperm washing yielded significantly worse sperm quality than SLC and offered no benefit over extension.
  • Adding SP to SLC samples did not enhance motility long-term and negatively impacted sperm quality during cold storage, especially at high concentrations.

Conclusions:

  • Single layer centrifugation is a superior method for preparing stallion semen for artificial insemination.
  • Seminal plasma addition is not recommended for improving semen quality after SLC, particularly for extended storage.

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