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Effects of omega-3 fatty acids on fresh bull semen quality: A systematic review and meta-analysis

Author

Listed:
  • Jabulani Ngcobo

    (Department of Animal Sciences, Tshwane University of Technology, Faculty of Science, Pretoria, South Africa)

  • Thobela Louis Tyasi

    (School of Agricultural and Environmental Sciences, Department of Agricultural Economics and Animal Production, University of Limpopo, Sovenga, Limpopo, South Africa)

Abstract

Polyunsaturated fatty acids (PUFAs), including omega-3, are known to yield health benefits to mammals, including bulls and human beings. This meta-analysis was done to determine the influence of omega-3 fatty acids (OMFA) on bull semen quality. The research question formulated for this meta-analysis was centred on the Population-Intervention-Comparison-Outcome (PICO) framework. To determine the influence of omega-3 fatty acids on semen quality, a meta-analysis was conducted using the Preferred Reporting Items for Systematic Reviews and Meta-Analysis (PRISMA) guidelines. The different effects were analysed using a random effects model. The variations among the included studies were tested using heterogeneity (I2). Semen volume (MD = 0.28, 95% CI: 0.13; 0.44), sperm concentration (MD = 71.12, 95% CI: 15.97; 126.26), live sperm (MD = 11.93; 95% CI: 7.30; 16.55), sperm motility (MD = 9.24, 95% CI: 7.39; 11.09) and plasma membrane integrity (MD = 11.60, 95% CI: 6.30; 16.89) increased dramatically in the omega-3 fatty acid-supplemented group. Notably, the progressive motility (MD = 1.19, 95% CI: -3.24; 5.61) was the only sperm parameter showing a non-significant influence when omega-3 fatty acids were supplemented. It was then concluded that the omega-3 fatty acid supplementation can be used to improve most of the semen parameters in bulls.

Suggested Citation

  • Jabulani Ngcobo & Thobela Louis Tyasi, 2026. "Effects of omega-3 fatty acids on fresh bull semen quality: A systematic review and meta-analysis," Czech Journal of Animal Science, Czech Academy of Agricultural Sciences, vol. 71(3), pages 97-108.
    • Handle: RePEc:caa:jnlcjs:v:71:y:2026:i:3:id:6-2026-cjas
    DOI: 10.17221/6/2026-CJAS
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    1. Ussif Rashid Sumaila & William Cheung & Andrew Dyck & Kamal Gueye & Ling Huang & Vicky Lam & Daniel Pauly & Thara Srinivasan & Wilf Swartz & Reginald Watson & Dirk Zeller, 2012. "Benefits of Rebuilding Global Marine Fisheries Outweigh Costs," PLOS ONE, Public Library of Science, vol. 7(7), pages 1-12, July.
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