Effects of dietary androstenedione concentration on growth of tilapia fry (Oreochromis aureus Linnaeus)

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2007
Authors
Turan, Funda
Gurlek, Mevlut
Turan, Cemal
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Israeli Journal of Aquaculture - BAMIGDEH
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Abstract
The effects of androstenedione on the growth, body composition, and survival of tilapia (Oreochromis aureus) fry were examined. Diets were supplemented by one of three androstene- dione concentrations (50, 100, or 200 mg/kg) for twelve weeks. The growth rate significantly increased in fish fed 50 mg androstenedione per kg compared to the control (p<0.01) but decreased dramatically at concentrations beyond 50 mg/kg. The specific growth rate, protein efficiency ratio, and food conversion ratio were significantly better in the 50 mg/kg group than in the other groups. Crude protein and survival at all androstenedione levels did not significantly differ from those of the control but lipid content dropped with 100 mg/kg supplementation.
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Keywords
tilapia, Oreochromis aureus, androstenedione, steroid hormones, growth, Fish culture--Israel--Periodicals., Fish culture--Periodicals., Aquaculture--Israel--Periodicals., Aquaculture--Periodicals.
Citation
Turan, F., Gurlek, M., & Turan, C. (2007). Effects of dietary androstenedione concentration on growth of tilapia fry (Oreochromis aureus Linnaeus). The Israeli Journal of Aquaculture - Bamidgeh, 59(1), 32-35.
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4 pages
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