No differences were evident in fresh semen, but after 24 h, sperm motility, viability and membrane permeability in the low motility group were lower (P < 0.001) compared with the normal motility group. Sperm membrane lipid peroxidation was greater (P < 0.001) in the low motility group. A factor influencing sperm storability is membrane lipid peroxidation, which can be accurately assayed using a commercial kit.
N. Am-in, R.N. Kirkwood, M. Techakumphu, and W. Tantasuparuk. Effect of storage for 24 h at 18°C on sperm quality and a comparison of two assays for sperm membrane lipid peroxidation. Canadian Journal of Animal Science. Vol. 90 (3): 389-392.