Mitochondrial membrane potential (Δφm) and lipid peroxidation (LPO) of stallion spermatozoa stored during five days (day 1 D1 to day 5 D5) at 5°C FE fresh extended sperm, CC sperm processed through colloidal centrifugation.

(Means ± SD) Results are derived from 28 identical experiments (7 stallions, 4 ejaculates per stallion). High spermatozoa depicting high Δφm, High and Low spermatozoa depicting simultaneously mitochondria with low and high Δφm, Low spermatozoa with low Δφm, LPO spermatozoa showing peroxidation of the lipids of their membranes.