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Penelitian ini bertujuan untuk menentukan perbandingan C:N ratio dalam media budidaya untuk pertumbuhan cacing sutra.

The soybean curd residue and mud medium gave the highest influence on the growth of the sludge worm, followed by pig manure and mud, chicken manure and mud, and then mud (control). The resulting C:N ratio was 60.5 for treatment A, 45.8 for treatment B, 36 for treatment C and 35 for K. Culture period was 21 days in running water systems. The decomposition process was proceeding for six days, and then the sludge worms were stocked with initial weight of 30 grams per container. This study used mud and soybean curd residue (treatment A), mud and chicken manure (treatment B), mud and pig manure (treatment C), and control (mud only) (K) as culture media of the sludge worm ( Tubifex sp.). This study aimed to determine the C:N ratio on each medium for the growth of the sludge worm. Title (Bahasa Indonesia): Rasio C:N pada media kultur cacing sutra, Tubifex sp. Balai Budidaya Air Tawar, Tatelu, Sulawesi UtaraĪquaculture Program, Faculty of Fisheries and Marine Science, Sam Ratulangi University, ManadoĬ, N ratio, silk worm, Tubifex sp., culture media, life food Abstract