Pengaruh Penambahan Ragi (Saccharomyces cerevisiae) pada Pakan terhadap Pertumbuhan Benih Ikan Bawal Bintang (Trachinotus Blochii)

Silver pompano is a seawater fish commodity that has been successfully developed in Indonesia, one of which is Batam Aquaculture Fisheries Center. The purpose of this study was to determine the effect and dose of yeast on the growth of Silver pompano (Trachinotus blochii) seeds. This research was conducted from May to June 2019 at the Wet Laboratory of the Faculty of Marine and Fisheries Sciences, Raja Ali Haji Maritime University. This research was conducted with a Completely Randomized Design (CRD) method with 4 treatments and 3 replications, treatment A or control without adding yeast, treatment B (adding 5gr yeast / kg of feed), treatment C (adding 10gr yeast / feed yeast), and treatment D (addition of yeast 15gr / kg of feed). Data were analyzed by Anova One-Way and if the results of the Anova One-Way test showed a significant effect (P> 0.01) then it would be continued with Duncan test, the results of the study would be displayed in the form of graphs, tables, and documentation. Research parameters include absolute weight growth, absolute length growth, daily growth and water quality. The best results in this study were in treatment C with the addition of yeast 10gr / kg of feed. In the absolute weight growth parameter of 0.70 ± 0.09b, absolute length growth of 0.735 ± 0.02c , feed convertion ratio 4,62±0,56c, efficient use of feed 21,83±2,59b and survival rate 96,30±6,41. These results indicate that the addition of yeast into the feed can accelerate the growth of the Silver pompano (Trachinotus blochii).Ikan Bawal bintang merupakan komoditas ikan air laut yang telah berhasil dikembangkan di Indonesia salah satunya di Balai Perikanan Budidaya Laut Batam. Tujuan penelitian ini adalah untuk mengetahui pengaruh dan dosis ragi terhadap pertumbuhan benih ikan Bawal bintang (Trachinotus blochii). Penelitian ini dilakukan pada bulan Mei sampai Juni 2019 di Laboratorium Basah Fakultas Ilmu Kelautan dan Perikanan, Universitas Maritim Raja Ali Haji. Penelitian ini dilakukan dengan metode Rancangan Acak Lengkap (RAL) dengan 4 perlakuan dan 3 ulangan, perlakuan A atau kontrol tanpa penambahan ragi, perlakuan B (penambahan ragi 5gr/kg pakan), perlakuan C (penambahan ragi 10gr/kg pakan), dan perlakuan D (penambahan ragi 15gr/kg pakan). Data dianalisis secara Anova One-Way dan apabila hasil dari uji Anova One-Way menunjukan pengaruh yang signifikan (P>0,01) maka akan dilanjutkan dengan uji Duncan, hasil penelitian akan ditampilkan dalam bentuk grafik, tabel, dan dokumentasi. Parameter penelitian meliputi pertumbuhan bobot mutlak, pertumbuhan panjang mutlak, pertumbuhan harian dan kualitas air. Hasil terbaik pada penelitian ini terdapat pada perlakuan C dengan penambahan ragi 10gr/kg pakan. Pada parameter pertumbuhan bobot mutlak sebesar 0,70±0,09b, pertumbuhan panjang mutlak 0,735±0,02c, tingkat konversi pakan 4,62±0,56c, efeseiensi pemanfaatan pakan 21,83±2,59b dan tingkat kelangsungan hidup 96,30±6,41. Hasil ini menunjukan bahwa penambahan ragi kedalam pakan mampu mempercepat pertumbuhan benih ikan bawal bintang (Trachinotus blochii)