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Title: Effect of Dietary Protein and Lipid Levels on Growth and Nutrient Utilization of Freshwater Angelfish Pterophyllum scalare 
Author: Mohanta, Kedar Nath; Subramanian, Sankaran; Korikanthimath, Veeratayya Sidweerayya
Date: 2012
Abstract: Nine semi-purified diets containing three levels of protein (300, 350, 400 g/kg) and three levels of lipid (60, 80, 100 g/kg) were fed ad libitum to juvenile freshwater angelfish Pterophyllum scalare (1.64±0.01 g) to determine the optimum dietary protein and lipid levels. Fish were stocked in 27 flow-through fiber-reinforced plastic tanks with 100 l water (10 fish/replicate) and fed 60 days. Fish were batch-weighed every 15 days to determine growth. The dietary protein level had a significant effect on protein efficiency rate (PER) but not on weight gain, feed conversion ratio (FCR), or specific growth rate (SGR). In contrast, the dietary lipid level had a significant effect on weight gain, FCR, and SGR but not on PER. The interaction of dietary protein and lipid had a significant effect on weight gain, FCR, SGR, and PER. No protein-sparing effect of the lipid was observed. Fish fed the diet containing 300 g protein and 60 g lipid per kg diet had a significantly better weight gain, SGR, PER, and FCR.
Series/Report No.: The Israeli Journal of Aquaculture - Bamidgeh
Pages/Duration: 5 pages
ISSN: 0792-156X
Identifier: IJA_64.2012.756
URI: http://hdl.handle.net/10524/23590
LC Subject Headings: Fish culture--Israel.
Fish culture.

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