Tilapia cultivation has the potential to be developed in Indonesia, especially in South Sulawesi. However, the obstacle faced in tilapia cultivation is feed; the price is relatively high because the raw materials are still imported. One of the efforts to overcome dependence on imported feed raw materials is using local raw materials, namely rice bran. This study aims to determine the best type of probiotic in hydrolyzing rice bran flour into artificial feed on survival and conversion ratio of tilapia fish feed. This research was conducted in Sidenreng Rappang Regency. The test animals used were tilapia larvae with an average size of 1.03 g. The maintenance container is a tarpaulin pond with a size of 1 m x 1 m x 1 m filled with 85 L of freshwater. The study was designed using a completely randomized design consisting of four treatments and three replications. The fermenting materials used as treatment were Bacillus sp., Lactobacillus sp., Aspergillus nigers, Yeast (Acetobacter). The test feed was given to 20 tilapia larvae stocked in each container for 60 days of rearing. The survival data and feed conversion ratio for tilapia were analyzed using analysis of variance (ANOVA). The results showed that tilapia fed fermented rice bran feed using the fermenter Lactobacillus sp. had a significant effect on survival (SR) with a value of 85% and the feed conversion ratio (FCR) of tilapia with a value of 2.23.

This study aims to determine the effect of the dose of fermented rice bran using Lactobacillus sp. on growth performance and enzyme activity in tilapia. This research was conducted in Sidenreng Rappang Regency. The test animal used was tilapia larvae measuring 1.17 g. The maintenance container is a tarp pool with a size of 1 m x 1 m x 1 m filled with fresh water as much as 85 L. The study was designed using a completely randomized design consisting of four treatments and three replications, thus there were 12 experimental units. The treatment was determined based on the dose of fermented rice bran using Lactobacillus sp. which differ, namely 0, 10, 15 and 20%. The test feed was given to tilapia larvae, which were stocked with 20 fish per container for 60 days of rearing. The specific growth rate data of tilapia were analysed using analysis of variance (ANOVA) and enzyme activity was analysed descriptively based on the viability of tilapia. The results showed that tilapia fed with 20% fermented rice bran had a significant effect on the specific growth rate, protease and amylase enzyme activity. The optimal dosage of fermented rice bran using Lactobacillus sp. is 15-20%.

This study aims to determine the impact of seaweed cultivation on the water quality of vannamei shrimp aquaculture ponds in the Suppa District, Pinrang Regency. This research was conducted for approximately 10 (ten) years in 2020. The research location was around the waters of the Suppa District, Pinrang Regency. includes preparation / preliminary observation in the field, determining sample points or selecting observation stations, collecting data in the field, taking samples then observing the laboratory, and making reports. Analysis of water quality for seaweed cultivation includes parameters of Salinity, Temperature, DO, pH, Nitrate and Phosphate. Based on laboratory tests, it is known that for analysis of seaweed cultivation water quality, the average value of each parameter is temperature 30 0c, Salinity 36 ppt, DO 6.44 ppm, pH 8.30, Flow 0.35 m / s, Brightness 58%, Nitrate 0.005 mg / l, and 0.00026 ppm Phosphate While the results of laboratory analysis of physical and chemical parameters in the area of ​​vannamei shrimp pond cultivation in Suppa District, Pinrang Regency, it is known that the average value of each parameter is temperature 30 0c, Salinity 33 ppt, DO 6.0 ppm, pH 8.4, Nitrate 0.0061 mg / l, and Phosphate 0.0032 ppm. The analysis of the suitability of pond land based on the analysis carried out found that it was suitable for 727.66 ha. And the effect of seaweed cultivation is very good for its influence on the quality of white shrimp pond water.