Evaluasi tepung biji kapuk Ceiba Petandra Gaertn yang difermentasi cairan rumen domba sebagai pengganti bungkil kedelai dalam pakan ikan bawal Collosoma Macropomum

Abstract

This study aimed to evaluate performance of kapok seed meal (KSM) which has been fermented with sheep rumen liquor as a feed of red belly fish. Treatments consisted of 0% KSM, 10% KSM, 20% KSM, 30% KSM, and 40% KSM. Protein content and amount of energy in each treatment targeted by 33±0,34% and 3800±240 kcal/kg feed. A total of 20 red belly fish (7,84 ± 0,18 gram) was reared for 40 days in 200 L tank, which has been equiped with aeration and recirculation sytem and heater (28 - 30°C). Fish feeding was conducted three times at 08.00, 12:00, and 16:00 (at satiation). The experimental design was a completely randomized design with 5 treatments and triplicate. The results showed that, the amount of feed intake, feed efficiency, protein retention, daily growth rate and survival in KSM 30% not significantly different from controls (P> 0,05). However, the daily growth rate and fat retention in KSM 40% was declining if compared with controls (P<0,05). Conclusion is kapok seed meal as much as 30% can be used as a replacement of soy bean meal in red belly feed,