Optimal Dietary Protein Levels in Juvenile Electric Blue Cichlid (Sciaenochromis fryeri)
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2008
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Israeli Journal of Aquaculture - BAMIGDEH
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Abstract
A feeding trial was conducted to determine the dietary protein requirement of juvenile electric blue cichlids (Sciaenochromis fryeri). Groups of fish (0.50±0.01 g) were fed one of four isocaloric diets containing protein levels ranging 35-50% for 12 weeks. According to the broken-line model, the dietary protein requirement was estimated as 38.8%. The feed conversion ratio ranged from 1.73 in the 50%-protein group to 2.16 in the 35% group. There were statistically significantly dif- ferences in feed intake and protein efficiency ratio. In general, the protein efficiency ratio decreased as the dietary protein level increased. For optimum growth, feed conversion, and pro- tein utilization, a diet containing 39-40% protein, 11% crude lipid, and 20.7 MJ gross energy/kg diet is recommended for juvenile S. fryeri.
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Keywords
electric blue cichlid, Sciaenochromis fryeri, ornamental fish, protein requirements, growth performance, Fish culture--Israel--Periodicals., Fish culture--Periodicals., Aquaculture--Israel--Periodicals., Aquaculture--Periodicals.
Citation
Gullu, K., Guroy, D., Celik, I., & Tekinay, A. (2008). Optimal Dietary Protein Levels in Juvenile Electric Blue Cichlid (Sciaenochromis fryeri). The Israeli Journal of Aquaculture - Bamidgeh, 60(4), 261-267.
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7 pages
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