PERTUMBUHAN BENIH IKAN JELAWAT (Leptobarbus hoevenii Blkr.) DENGAN PEMBERIAN PAKAN KOMERSIL YANG DITAMBAHKAN TEPUNG RIMPANG JAHE (Zingiber officinale Rosc.)

Abstract

One type of freshwater fishhas the potential as animal protein is  jelawat fish (Leptobarbus hoevenii Blkr).  Jelawat fish is a Indonesian native fish found in several rivers in Sumatra and Kalimantan. This research aims to examine the growth response of jelawat fish (Leptobarbus hoevenii), fed commercial feed with addition of ginger rhizome flour.  The research"™s method used  completely randomized design (CRD) with 5 treatments, namely the addition of ginger rhizome flour 0 g, 2.5 g, 5 g, 7.5 g, and 10g/kg feed with 3 replications. Each replication consisted of 10 jelawat fish seed. Data were analyzed using Analysis of Variance (ANOVA) with 5% confidence level.  The results showed that the highest growth in weight and length was obtained ginger flour 10 g/kg of feed with the addition of ginger rhizome flour with a value of 2.36 g and 18.10 mm.  The observations results that feed conversion parameters, growth rate and relative growth showed significant results with the addition of 10 g/kg of feed with addition of ginger rhizomeflour resulting in the highest feed conversion value off 1.133, growth rate 0.523 g/day and relative growth of 90.06%.  However, the addition of ginger rhizome flour had no significant effect on the observed survival parameters and consumption rate.