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Effect of sodium selenite (SS), seleon l‐methionine (SeMet) and vitamin E (Vit‐E) on the rates of incorporation of 14C(U)‐glucose in porcine spermatozoa at 3 h of incubation. Each column with an error bar represents the mean ± standard error (n = 5). Different letters indicate significant differences (P < 0.05) among the treatments in the different concentrations
