Abstract
This study aims to determine the effect of adding watermelon fruit extract to egg yolk tris diluent to maintain the quality of spermatozoa of kacang goat. Knowing the best concentration of watermelon extract in maintaining the sperm quality of kacang goat stored at 50C. This study used a completely randomized design (CRD) with four treatments and four replications. The material used in this study was semen from 2-year-old kacang goats. Semen is collected using an artificial vagina twice a week. Watermelon extract concentrations were P0, P1, P2 and P3 (0%, 1.5%, 2.5% and 3.5%). The variables observed were progressive motility, viability and abnormality. The data obtained were analyzed using analysis of variance (ANAVA), significantly different results were further tested with Duncan's test in the SPSS16 program. The results showed a significantly better effect (P>0.05) on progressive motility, viability and abnormalities. Progressive motility at P0 32±2.58%, P1 40±6.32%, P2 50±2.68%, and P3 35±4.47%. Spermatozoa viability for P0 was 58±4.96%, P1 was 67.2±3.19%, P2 was 68.3±3.27%, and P3 was 69.2±1.17%. Spermatozoa abnormalities for P0 13.8 ± 0.75%, P1 11.3 ± 0.82% , P2 6.8 ± 1.17 % and P3 12.3 ± 0.82 %. The best concentration obtained by adding watermelon fruit extract was 2.5% (P2) with progressive motility of 50 ± 2.68%, viability of 68.3 ± 3.27%, and abnormality of 6.3 ± 0.82% during four days of storage.