Abstract
A 120-day feeding trial was designed to determine the effects of different dietary protein and lipid levels and protein to energy ratio (P:E) on growth performance and feed utilization of hatchery-reared juvenile spotted babylon, Babylonia areolata, cultured under a flow-through seawater system. Six diets were formulated to contain three protein levels (18, 28, and 36%) and two lipid levels (10 and 15%) in a 3 × 2 factorial design with three replicates to provide six different dietary P:E ratios (50.17, 49.09, 68.50, 65.85, 88.66, and 85.36 mg protein/kcal). Each replicate was stocked with 50 snails (0.12 + 0.01 g, initial weight) and fed to satiation once daily. The results showed that survival was above 96% at the end of the feeding trial in all groups and was not affected by either dietary protein level or dietary lipid level. The highest significant (P < 0.05) growth and feed utilization were observed for juveniles fed diet with a P:E ratio of 88.66 kcal g−1 diet. With respect to dietary protein and lipid levels, the highest (P < 0.05) values for growth and feed efficiency were observed for snails fed a diet containing 36% protein level and the same trend was observed for snails fed a diet with 10% lipid level. This results indicated that the diet containing 36% protein and 10% lipid level with a dietary P:E ratio of 88.66 mg protein/kcal would be suitable for optimum growth and feed utilization of B. areolata juveniles.
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Acknowledgments
This study was supported by the National Research Council of Thailand (NRCT), who provided fund for this research in the fiscal year 1996–2007. We are especially grateful to Associated Professor Dr. Somkiat Piyatiratitivorakul, Faculty of Science, Chulalongkorn University for his encouragement and critical reading of the article.
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Chaitanawisuti, N., Kritsanapuntu, S. & Santaweesuk, W. Effects of dietary protein and lipid levels and protein to energy ratios on growth performance and feed utilization of hatchery-reared juvenile spotted babylon (Babylonia areolata). Aquacult Int 19, 13–21 (2011). https://doi.org/10.1007/s10499-010-9337-4
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DOI: https://doi.org/10.1007/s10499-010-9337-4