IPB Researchers Utilized Spirulina as a Tilapia Fish Feed Supplement
Spirulina is blue - green algae containing high protein and vitamins that can be utilized as a single cell protein source (PST). Three researchers from the Department of Aquaculture, Faculty of Fisheries and Marine Sciences, Bogor Agricultural University (FPIK), namely Nur Bambang Priyo Utomo, Firsty Rahmatia and Mia Setiawati conducted a study to determine the minimum dosage of Spirulina in different protein content and its effect on fish growth.
"Spirulina is often found in alkaline brackish water. These algae contain high nutrients. The protein of a dry platensis Spirulina can reach more than 60 percent. Its vitamin content is high, especially vitamin B12, and contains enough amino acids," said Bambang.
In this experiment, the team used tilapia fish with an average weight of 17.24 grams with a fish stocking density of five per aquarium. The fish were kept in a 50 × 40 × 35 cubic centimeter aquarium filled with water with a height of 30 centimeters and using a recirculation system, fish fed with a frequency of three times a day. Fish rising was performed for 40 days and fish growth analysis was conducted daily.
Based on the results of this experiment, the team found that different dosages of Spirulina supplementation in fish feed with different protein content had an effect on daily growth rate, feed efficiency, protein retention, and tilapia fat retention. Three percent Spirulina supplementation in fish feed with 25 percent protein gave similar fish growth performance on fish feed with protein 28 percent. Supplementation of three percent in feed 25% protein content obtained value of feed consumption of 216.97 grams, daily growth rate of 1.97 percent, feed efficiency 31.81 percent, protein retention 82.47 percent and fat retention of 99.30 percent.
"If compared to feed protein levels, the growth performance produced by low protein feed (25 percent) was able to approach the growth performance produced by higher protein feed (28 percent). The growth performance tended to be better demonstrated by 3 percent Spirulina supplementation for both type of feed, "he said. (TK)
Published Date : 08-Jan-2018
Resource Person : Nur Bambang Priyo Utomo, Firsty Rahmatia dan Mia Setiawati
Keyword : IPB Researchers Utilized Spirulina as a Tilapia Fish Feed Supplement