Application of environmental probiotic on rearing snakehead fish (Channa striata)

Abstract

This study aims to evaluate the application of environmental probiotic on production performance (survival rate, absolute weight and length, biomass weight and specific growth rate and blood condition level in snakehead fish (Channa striatus) rearing. The research was conducted at the Cibalagung Environmental Research and Toxicology Installation, Bogor, Indonesia. The experiment was conducted in a completely randomized design with three treatments, including RIFA probiotic, commercial probiotic, and without probiotic application repeated three times each experiment. Fish (weight: 6.5-6.9 ± 0.04 g) were reared in 300 L tanks with density of about 30 fish/tank. Fish were fed with commercial feed (31% protein content) about 5% biomass per day. The parameters observed were production performance, hematology, and water quality. All data were analyzed using ANOVA and continued by the Duncan test. Water quality parameters were analyzed descriptively. The results showed that RIFA probiotic treated on snakehead fish produced the best production performance compared to commercial probiotic and without probiotic applications. These results were supported by much better water quality parameters and hematology performance of the fish.

Effects of Bromealin on Digestive Enzyme Activities and Growth Performance of Asian Redtail Catfish (Hemibragus Nemurus)

“…for the growth and survival of asian redtail catfish. According to Tang [46] and Bunasir et al [47] a good temperature for the rearing of asian redtail catfish ranges from 25-30 °C, the pH of water ranges from 5.5-6.5 [48], the dissolved oxygen content is 3-8 mg L -1 , the range of ammonia is 0.02-0.72 mg L -1 [49].…”