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(ICV-Poland) Impact Value: 76.37
E-ISSN: 2347-5129, P-ISSN: 2394-0506

International Journal of Fisheries and Aquatic Studies

2014, Vol. 1, Issue 3, Part A

Low dietary protein to energy ratios support rapid growth of Juvenile topshell, Trochus niloticus


Author(s): Maria Mojena Gallo Gonzales, Crispino A. Saclauso, Rex Ferdinand Traifalgar

Abstract: Nine practical diets containing nine protein-to-energy ratio of 0.058, 0.064, 0.077, 0.088, 0.097, 0.100, 0.115, 0.120, and 0.155 g/kcal were fed at 5-3% of body weight daily to juvenile topshell, T. niloticus, for 90 days.rnProtein to energy ratio had significant effects on growth and nutrient deposition of juvenile topshell, Trochus niloticus. At P:E ratio of 0.058 and 0.064 g/kcal, SLG reached 0.20-0.21 mm, WG 7.18-9.69%, SGR 0.08- 0.10% day-1, and attained PER of 0.48–0.57. Survival (82-92%) and feed conversion ratios (5.81-6.77) were not affected by P:E ratio in the diet. Nutrient deposition was significantly affected by P:E ratio in the diet. High protein deposition was observed at P:E ratio of 0.058 g/kcal, while high fat deposition was observed at P:E ratio of 0.155 g/kcal. This study demonstrated that a P:E ratio of 0.058 and 0.064 g/kcal was sufficient for good growth, PER and high crude protein deposition in juvenile topshell, T. niloticus

Pages: 04-08  |  691 Views  9 Downloads

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How to cite this article:
Maria Mojena Gallo Gonzales, Crispino A. Saclauso, Rex Ferdinand Traifalgar . Low dietary protein to energy ratios support rapid growth of Juvenile topshell, Trochus niloticus. 2014; 1(3): 04-08.
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