
The aim of this study was to assess the effect on the use of vitamin C, E and C + E as antioxidants on sperm quality of frozen-thawed semen boar semen Yorkshire breed, which was divided into three treatments with Vitamin C, E and combined (C + E) at different concentrations (0, 2, 4 and 6 mg / ml) was used. Motility and viability was assessed before and after freezing the semen, semen freezing was described by Westendorf based with some modifications. After thawing with vitamin C motility of 80% and viability of 75%, with vitamin E motility was obtained was 85% and a viability of 89% and vitamin C + E motility was 85% and 88% viability. Concentration of 4 mg / ml in the control treatment vitamin C was 81% and 85% viability, with E motility was 80% and 85% viability. With vitamins C + E motility was 86% and 88% viability before freezing. After thawing, motility vitamin C was 80% and 80% viability; with E motility was 80% and 83% viability; with C + E vitamins in the witness vitamin C motility was 83% and the viability of 85%: In the concentration at 6 mg / ml the witness with vitamin C motility was 81% and viability of 80% ; with E motility was 87% and the viability of 80% and vitamins C + E motility was 85% and the viability of 88%: After thawing, the C motility was 83% and 79% viability, with E motility was 85% and 83% viability with vitamins C + E motility was 87% and 88% viability. In conclusion, the addition of vitamins in the spermatic conservation help keep sperm motility and viability.