SUBSTITUSI CACING TANAH (Lumbricus rubellus) PADA PAKAN BUATAN TERHADAP PERTUMBUHAN IKAN GABUS (Channa Striata) PADA SALINITAS 3 Ppt

ABSTRAKTujuan dari penelitian ini adalah untuk mengetahui pengaruh persentase pakan buatan dan cacing tanah terhadap pertumbuhan ikan gabus dan mengetahui persentase pakan buatan dan cacing tanah yang menghasilkan pertumbuhan terbaik. Penelitian ini dilaksanakan di Laboratorium Budidaya Perairan, Prodi Budidaya Perairan, Fakultas Perikanan, Universitas Pekalongan di Slamaran, Kota Pekalongan. Rancangan percobaan yang digunakan yaitu Rancangan Acak Lengkap (RAL) yang terdiri dari 4 perlakuan dan 3 ulangan dan sebagai perlakuan adalah perbedaan persentase pakan buatan dan cacing tanah. Perlakuan A (100% pellet + 0% cacing tanah), B. (75% pellet + 25% cacing tanah), C. (50% pellet + 50% cacing tanah) dan D (25% pellet + 75% cacing tanah). Hasil penelitian menunjukkan bahwa perbedaan persentase pakan buatan dan cacing tanah berpengaruh sangat nyata terhadap pertumbuhan ikan gabus. Perlakuan D memiliki pertumbuhan terbaik yaitu 4,46 gr, kemudian perlakuan C sebesar 3,77 gr, perlakuan B sebesar 3,43 gr dan terendah perlakuan A sebesar 2,86 gr. Kata Kunci : Ikan Gabus, Pakan Buatan, Cacing Tanah, Pertumbuhan ABSTRACTSnakehead is a type of fish economical in public waters and potential to be developed. One of the efforts to increase the growth of snakehead is by adding natural food that has high protein such as earthworms. The purpose of this research is to know the percentage of artificial feed and earthworm (Lumbricus rubellus) on growth of cork (Channa striata) at salinity 3 ppt. This study used a Completely Randomized Design (RAL) consisting of 4 treatments and 3 replications with different percentage of artificial feed and earthworm as treatment. The treatments used were: A. 100% pellet + 0% earthworm, B. 75% pellet + 25% earthworm, C. 50% pellet + 50% earthworm and D. 25% pellet + 75% earthworm. During the study of cork fish kept for 30 days. Based on the results of research calculated using the method of variance analysis obtained value F arithmetic of 43.15 which is greater than F Table 5% that is 4.06 and F Table 1% ie 7.59 so that the difference in percentage of artificial feed and earthworms have a very significant effect on the growth of cork fish. Treatment D has the best growth rate of 4.46 g, and treatment A which has the lowest growth rate of only 2.86 g. Water quality parameters are 28 - 29ºC, pH water 7.5 - 8.4, DO 5 - 7,9 ppm, and salinity 3 ppt. Keywords: Snakehead, earthworm, percentage of fee