PENGARUH TEKNIK PENGAPUNGAN HAYATI MELALUI FERMENTASI Rhizopus sp. TERHADAP KANDUNGAN NUTRISI PAKAN IKAN APUNG

Sabrina Ayu Paramadini, Catur Sriherwanto, . Nurlaila, Imam Suja'i, Mutiara Ayu Annisa

Abstract


Influence of Biofloatation Technique through Rhizopus sp. Fermentation on the Nutritional Quality of the Floating Fish Feed

ABSTRACT

Solid fermentation using the mold Rhizopus has been used as an alternative method to improve the physical quality of fish feed, namely stability in water and floatability. Although the fermented fish feed produced had been shown previously to have better stability in water and floatability, the effect of the fermentation on the fish feed nutrition has not yet been known. This study aimed to determine the effect of solid fermentation using the mold Rhizopus sp. on the nutrient content of the fermented feed. In addition, the effect of adding tapioca as much as 0, 1, 2, 3, and 4 g to the dry weight loss and density of the fermented feed was investigated. The results showed that the fermented feed contained higher levels of ash and protein than that before fermentation. The addition of tapioca up to 4 g had no significat effect (p>0.01) on the dry weight loss of the fermented feed, but tended to increase its density compared to those without tapioca addition.

Keywords: density, fermentation, fish feed, nutrition, Rhizopus

 

ABSTRAK

Fermentasi padat menggunakan kapang Rhizopus telah digunakan sebagai metode alternatif untuk memperbaiki kualitas fisik pakan ikan, yakni stabilitas dalam air dan daya apung. Meskipun pakan ikan fermentasi yang dihasilkan sebelumnya sudah dibuktikan memiliki stabilitas dalam air dan daya apung yang lebih baik, namun pengaruh fermentasi terhadap nutrisi pakan ikan tersebut belumlah diketahui. Penelitian ini bertujuan mengetahui pengaruh fermentasi padat menggunakan kapang Rhizopus sp. terhadap kandungan nutrisi pakan fermentasi, dan pengaruh penambahan tapioka sebanyak 0, 1, 2, 3, dan 4 g terhadap kehilangan berat kering dan mass jenis pakan hasil fermentasi. Hasilnya menunjukkan bahwa pakan fermentasi mengandung kadar abu dan protein lebih tinggi dibandingkan sebelum difermentasi. Penambahan tapioka hingga 4 g tidak berpengaruh nyata (p>0,01) pada kehilangan berat kering pakan fermentasi, namun cenderung meningkatkan massa jenis dibandingkan tanpa penambahan tapioka.

Kata kunci: fermentasi, massa jenis, nutrisi, pakan ikan, Rhizopus


Keywords


density; fermentation; fish feed; nutrition; Rhizopus; fermentasi; nutrisi; pakan ikan; massa jenis

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References


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DOI: http://dx.doi.org/10.29122/jbbi.v6i1.3477

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