Putra Iskandar, Rusliadi Rusliadi, Fauzi Muhammad, Tang Usman M, Muchlisin Zainal A
Faculty of Fisheries and Marine Sciences, Universitas Riau, Pekanbaru , Riau , 28293, Indonesia.
Faculty of Marine and Fisheries , Syiah Kuala University, Banda Aceh, 23111, Indonesia.
F1000Res. 2017 Aug 22;6:1545. doi: 10.12688/f1000research.12438.1. eCollection 2017.
The objective of the present study was to evaluate the growth performance and feed utilization of African catfish fed a commercial diet and reared in the biofloc system enhanced with probiotic. The treatment was the frequency of probiotic application into the cultured system, namely, 5-day interval, 10-day interval, and 15-day interval for 60 days of experiment. Biofloc culture was grown in an experiment tank (vol. 2000 L) by mixing the probiotic ( sp.) 10 mL and molasses 200 mL per liter of water. The fish was stocked into the biofloc system 7 days after cultured at stocking density of 1000 fish tank . The fish was fed a commercial diet that contains 38% crude protein, twice a day at satiation. The application of probiotic was reperformed after 5 days, 10 days, and 15 days after stocking. The study showed that the growth performance, survival, and feed utilization of African catfish were higher in the treatment at 5-day intervals over 60 days. The ANOVA test showed that the application frequency of probiotic into biofloc system of cultured media had the significant effect on the growth performance, survival rate, and feed utilization of African catfish. The best growth performance and feed utilization were found at the application of probiotic into biofloc system at 5-day intervals over 60 days.
本研究的目的是评估在添加益生菌的生物絮团系统中饲养的非洲鲶鱼的生长性能和饲料利用率。处理方式为向养殖系统中添加益生菌的频率，即在60天的实验期内，分别为5天间隔、10天间隔和15天间隔。通过每升水混合10毫升益生菌（ 种）和200毫升糖蜜，在一个2000升的实验水箱中培养生物絮团。在养殖7天后，以每箱1000尾的放养密度将鱼放入生物絮团系统中。鱼每天饱食投喂两次一种粗蛋白含量为38%的商业饲料。在放养鱼后5天、10天和15天重新添加益生菌。研究表明，在60天的实验期内，5天间隔处理组的非洲鲶鱼生长性能、存活率和饲料利用率更高。方差分析表明，向养殖介质的生物絮团系统中添加益生菌的频率对非洲鲶鱼的生长性能、存活率和饲料利用率有显著影响。在60天的实验期内，以5天间隔向生物絮团系统中添加益生菌时，生长性能和饲料利用率最佳。
