<![CDATA[ABSTRAK Penelitian ini bertujuan untuk menguji apakah penambahan Protein Sel Tunggal (PST) dari produk MSG berpengaruh terhadap tingkat konsumsi pakan, protein efisiensi rasio, rasio konversi pakan, laju pertumbuhan spesifik, pertumbuhan bobot mutlak, pemanfaatan protein bersih dan kelulushidupan benih nila yang dibudidayakan pada media bersalinitas 15 ppt. Penelitian ini menggunakan metode eksperimen yang dilakukan dengan Rancangan Acak Lengkap (RAL) dengan 4 perlakuan dan 3 kali ulangan, yaitu A (0% PST), B (5% PST), C (10% PST) dan D (15% PST). Peubah yang diukur yaitu data tingkat konsumsi pakan (TKP), rasio efisiensi protein (PER), rasio konversi pakan (FCR), pertumbuhan bobot mutlak (W), laju pertumbuhan spesifik (SGR), pemanfaatan protein (NPU), kelulushidupan (SR) dan kualitas air. Penelitian ini dilaksanakan di BBPBAP Jepara pada bulan April – Juni 2012. Hasil penelitian menunjukkan bahwa perlakuan penambahan PST dalam pakan berpengaruh terhadap penurunan nilai SGR dan W secara nyata (P<0,05) dan penurunan nilai TKP dan PER secara sangat nyata (P<0,01), tetapi tidak menurunkan nilai FCR dan SR (P>0,05). Berdasarkan hasil penelitian dapat disimpulkan bahwa penambahan Protein Sel Tunggal (PST) dari produksi MSG dalam pakan buatan tersebut menurunkan nilai TKP, PER, W, dan SGR nila pada media bersalinitas 15 ppt.  ABSTRACT The aims of this experiment were to examine whether the additional of single cell protein from MSG production to artificial diet give an effect toward voluntary feed intake, feed conversion ratio, protein efficiency ratio, spesific growth rate, absolute growth rate, net protein utilization and survival rate of tilapia’s juvenil cultured in saline water.. This experiment used experimental method which is done with a Completely Randomized Design (CRD) with 4 treatments and 3 replicates, i.e. A (0% SCP), B (5% SCP), C(10% SCP) and D (15% SCP). The measured variables are voluntary feed intake (VFI), feed conversion ratio (FCR), protein efficiency ratio (PER), absolute growth rate (W), spesific growth rate (SGR), net protein utilization (NPU), survival rate (SR) and water quality. This expriment was carried out in BBPBAP Jepara on April – June 2012. The results showed that the treatments decreased the values of SGR and W significantly (P<0,05), also decreased VFI and PER values very significantly (P<0,01), but did not affect on FCR and SR values (P>0,05). Based on the results, it can be concluded that supplementations of SCP from MSG production have resulted in decreasing VFI, PER, W, and SGR of tilapia reared in 15 ppt salinity water.]]>
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