Effect of dietary probiotics SEAL on growth performance of red tilapia (Oreochromis sp.) nilasa strain

Aims of this study were to determine the effect of probiotic application on the growth performance and feed utilization of red tilapia nilasa strain juveniles. Yeast and bacterial strains of different origin (Saccharomyces sp., Enterobacter sp. JC10, Aeromonas sp. JC33, and Lactococcus sp. JAL12) were administered to fish in daily and three day intervals at dose of 5 104 CFU/gram feed. The control groups were only administered with fish pellet with saline buffer. The fish were stocked in 95 72 55 cm containers (50 each) and fed approximately 3 of their body weight thrice a day for 62 days. Absolute, relative and specific growths of weight were examined at one and two months of probiotic application. Fish survival rate, total production, feed conversion ratio (FCR) were analyzed at the end of experiment. The results showed that probiotics application in fish affected absolute weight, relative weight, specific weight, and total production (P<0.05). No significant effects on fish feed utilization parameters were obtained. It is concluded that probiotics SEAL application is efficacious in the growth performance of tilapia nisala strain. The application with three-day interval improves the growth and total production of red tilapia similar to the daily probiotics application. © Published under licence by IOP Publishing Ltd.