What is the correct post-hoc test (after one-way ANOVA) to test the effect of ascorbic acid on the post-thaw motility and viability of pig sperm.

I am testing the effects of ascorbic acid (at 2.5 mg/ml, 4.5 mg/ml and 6.5 mg/ml) on the post-thaw motility and viability of boar sperm. I expect my data to be parametric and will use a one-way ANOVA to determine if significant differences exist between the treatments groups. However I am slightly confused as to which post-hoc test will be required. (I'm thinking either Tukey's range test or duncan's multiple range test)