202 Kualitas Semen Cair Kambing Boer dalam Pengencer Air Kelapa Muda dengan Penambahan Sari Kedelai (BOER GOAT LIQUID SEMEN QUALITY IN YOUNG COCONUT WATER EXTENDER WITH ADDITION OF SOY MILK) Nisa’us Sholikah 1* , Sri Susilowati 1 , Yuli Arif Tribudi 2 , Deny Sulistyowati 3 1 Program Studi Peternakan, Fakultas Peternakan, Universitas Islam Malang Jl. Mas Tirtodarmo Haryono No. 193, Malang. Jawa Timur Indonesia 65111 No. Telpon/ Faks. 0341-580530 / 0341552249. 2 Program Studi Peternakan, Fakultas Pertanian, Universitas Tanjungpura W8RX+W97, Bansir Laut, Kec. Pontianak Tenggara, Kota Pontianak, Kalimantan Barat, Indonesia 78115 3 Laboratorium Produksi Semen dan Pengembangan Inseminasi Buatan, Balai Besar Inseminasi Buatan Singosari Jl. BBIB No.2, Glatik, Toyomarto, Kec. Singosari, Kabupaten Malang, Jawa Timur Indonesia 65153 *Email: nisaus.sholikah@unisma.ac.id ABSTRACT The aim of the study was to determine the quality of the liquid semen of Boer goats stored in young coconut water with the addition of soy milk. The research was conducted at the Animal Reproduction Laboratory, Faculty of Animal Husbandry, Brawijaya University, Malang. The research material was Boer goat semen aged 3 to 4 years collected twice a week using the artificial vaginal method. The research method was laboratory experiment with randomized complete block design with four treatments as a group and each group consist of 10 replications. The data were analyzed by Analyze of Variance. The research treatments were P0 (CEP-3 90% + thin albumen 0.4% + yolk 10%), P1 (coconut water 80% + yolk 15% + soy milk 5%), P2 (coconut water 80% + yolk 10% + soy milk 10%), dan P3 (coconut water 80% + yolk 5% + soy milk 15%). The results showed that the sperm motility and viability until the 3rd day between P0 and P2 treatments did not give a significant difference (P>0.05), but P1 and P3 gave a very significant difference (P<0.01). The percentage of abnormality in all treatments was not significantly different (P>0.05) on day 1 to day 3. P0 could maintain the quality of the liquid semen until the 4th day with individual motility of 43.00 ± 2.88%. Meanwhile, P1 could maintain the quality of liquid semen until the 3rd day with individual motility of 43.00 ± 1.04%. In conclusion, young coconut water extender with the addition of soy milk could replace Cauda. Epididymal Plasma-3 (CEP-3) extender until the 3rd day for artificial insemination. Keywords: liquid semen; Boer goat; young green coconut water; soy milk ABSTRAK Penelitian bertujuan untuk mengetahui kualitas semen cair kambing boer yang disimpan dalam pengencer air kelapa muda dengan penambahan sari kedelai. Penelitian dilaksanakan di Laboratorium Reproduksi Ternak, Fakultas Peternakan, Universitas Brawijaya Malang. Materi penelitian adalah semen kambing boer berusia 3 hingga 4 tahun yang ditampung sebanyak dua kali seminggu menggunakan metode vagina buatan. Metode penelitian adalah eksperimen laboratorium menggunakan rancangan acak kelompok (RAK) dengan empat perlakuan sebagai kelompok dan setiap kelompok terdapat 10 Jurnal Veteriner Juni 2022 Vol. 23 No. 2 : 202-210 pISSN: 1411-8327; eISSN: 2477-5665 DOI: 10.19087/jveteriner.2022.23.2.202 Terakreditasi Nasional, Dirjen Penguatan Riset dan Pengembangan, online pada http://ojs.unud.ac.id/index.php/jvet Kemenristek Dikti RI S.K. No. 36a/E/KPT/2016