ArticleAnimals : an open access journal from MDPI2026
The Influence of L-Serine on Sperm Quality, Malondialdehyde, and Antioxidant Enzyme Activity After Cryopreservation in Bull Semen.
Article in Animals : an open access journal from MDPI, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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6 authors.
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Abstract
Bull semen cryopreservation is essential for preserving valuable genetics and supporting cattle breeding programs; however, freeze-thaw stress compromises post-thaw sperm quality through oxidative damage and membrane injury. This study evaluated the effects of L-serine supplementation on post-thaw semen quality, susceptibility to induced lipid peroxidation, and antioxidant enzyme activity in bull semen. Semen collected from four Brahman bulls was cryopreserved in a Tris-based extender supplemented with 0, 2, 4, or 6 mM L-serine. Post-thaw total motility, progressive motility, viability, plasma membrane integrity, MDA concentration, and the activities of superoxide dismutase (SOD), glutathione peroxidase (GPx), and catalase (CAT) were assessed. Supplementation with 2 and 4 mM L-serine resulted in higher total motility and progressive motility, and greater plasma membrane integrity than the control and 6 mM treatments (
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