Pengaruh Konsentrasi Tepung Spirulina platensis pada Pakan terhadap Peningkatan Warna Ikan Komet (Carassius auratus)

Abstract

Comet Fish (Carassius auratus) is a kind ornamental fish which is popular today. Comet Fish has a distinctive featuren that can be seen from the beautiful color and beuty fins especially elongated tail fin. This makes the come fish has a high selling value, so many people are trying to obtain high profits. Color is aesthetics ornamental fish that affect it economical values. Thus, the color should be upgraded and maintained its quality. Such efforts to increase color will be done by adding pigments natural resources into the feeds. Pigments natural resources can be obtained from Spirulina platensis. The purpose of this research is to know dosage Spirulina platensis that optimal to increase the color of Comet Fish. This Research using Complete Random Design (CRD) with three repetition, with the dose treatment by 0 %, 1 %, 3 %, and 5 % for up during 30 days. Provision of Spirulina platensis through the feed can increasing colors of the Comet Fish. The nutrient that enriched with Spirulina platensis dosage 3% can produce colors brighter than the other dose. Additional Spirulina in the feed has no effect on growth of Comet Fish.