Antioxidants can inhibit the oxidation process by reacting with free radicals, which in turn, maintain the quality of spermatozoa. This study aims to determine the viability and the abnormality of “ayam kampung” (Gallus gallus) spermatozoa after being diluted in ringer lactate infused with “sarang semut” (Myrmecodia Sp) extract. RAL is the research method used, utilizing 4 different Gallus gallus as test subjects. The variables observed are the abnormality and the viability of the spermatozoa sample treated with different amounts of Myrmecodia Sp extract, P0: 0 ml, P1: 0.02 ml, P2: 0.03, and P3: 0.04 ml. The abnormality rate for each sample is as follows; P0: 14 ± 4.05%, P1: 13.5 ± 3.78%, P2: 3.5 ± 1.23% and P3: 12.83 ± 5.04 %. Using the variance analysis, the result showed that the addition of Myrmecodia Sp extract in ringer lactate solution had little to no effect on causing spermatozoa abnormalities. Furthermore, the viability of spermatozoa for each sample is; P0: 14 ± 4.05%, P1: 13 ± 3.78%, P2: 13 ± 1.22% and P3: 12 ± 5.04%. Based on the variance analysis, the result showed that Myrmecodia Sp extract had a significant effect (P