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Egyptian Journal of Aquatic Biology and Fisheries
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El Hamm»dy, A. (2002). CARBOHYDRATE TO LIPID RATIO (CHO.-.L) IN PRACTICAL T1LAPIA DIETS: 1- EFFECT OF DIETARY CARBOHYDRATE TO LIPID RATEO ON GROWTH PERFORMANCE OF HYBRID TILAPIA {Oreochromis niloticus x O auretts).. Egyptian Journal of Aquatic Biology and Fisheries, 6(3), 17-38. doi: 10.21608/ejabf.2002.1749
Ahmed El Hamm»dy. "CARBOHYDRATE TO LIPID RATIO (CHO.-.L) IN PRACTICAL T1LAPIA DIETS: 1- EFFECT OF DIETARY CARBOHYDRATE TO LIPID RATEO ON GROWTH PERFORMANCE OF HYBRID TILAPIA {Oreochromis niloticus x O auretts).". Egyptian Journal of Aquatic Biology and Fisheries, 6, 3, 2002, 17-38. doi: 10.21608/ejabf.2002.1749
El Hamm»dy, A. (2002). 'CARBOHYDRATE TO LIPID RATIO (CHO.-.L) IN PRACTICAL T1LAPIA DIETS: 1- EFFECT OF DIETARY CARBOHYDRATE TO LIPID RATEO ON GROWTH PERFORMANCE OF HYBRID TILAPIA {Oreochromis niloticus x O auretts).', Egyptian Journal of Aquatic Biology and Fisheries, 6(3), pp. 17-38. doi: 10.21608/ejabf.2002.1749
El Hamm»dy, A. CARBOHYDRATE TO LIPID RATIO (CHO.-.L) IN PRACTICAL T1LAPIA DIETS: 1- EFFECT OF DIETARY CARBOHYDRATE TO LIPID RATEO ON GROWTH PERFORMANCE OF HYBRID TILAPIA {Oreochromis niloticus x O auretts).. Egyptian Journal of Aquatic Biology and Fisheries, 2002; 6(3): 17-38. doi: 10.21608/ejabf.2002.1749

CARBOHYDRATE TO LIPID RATIO (CHO.-.L) IN PRACTICAL T1LAPIA DIETS: 1- EFFECT OF DIETARY CARBOHYDRATE TO LIPID RATEO ON GROWTH PERFORMANCE OF HYBRID TILAPIA {Oreochromis niloticus x O auretts).

Article 2, Volume 6, Issue 3, September 2002, Page 17-38  XML PDF (1.75 MB)
Document Type: Original Article
DOI: 10.21608/ejabf.2002.1749
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Author
Ahmed El Hamm»dy
Fish Nutrition Lab., National Institute of Oceanography and Fisheries. Egypt. 101 Kasr El-Aini Sir.. Cairo, Egypt.
Abstract
A160 day feeding trial was performed to determine the effects of .dietary carbohydrate to lipid ratio (CHO:L) on growth and body composition of hybrid tilapia (40.6 ± 0.43 g, initial weight). Eight artificial diets were formulated, representing two protein levels (25 and 30%) , within each level four carbohydrate to lipid ratios (2,4,6 and 8 CHO:L ratio) were tested. Growth rates in fish differed (P<0.05) with CHO:L ratio. Weight gain ('%) was significantly lower (P<0.05) in fish fed diets containing low crude protein. Maximum weight gain (363.5%), SGR (0.%% /day), FCE (43.4%). protein retention (24.4%) and energy retention (15.7%) were observed in fish fed a 6 CHO:L ratio. Fish fed either high protein and low protein within 2 and 8 CHO:L ratios tended to produce.' leaver growth and feed conversion efficiency. The different CHO:L ratios had effect on percentage body lipid. HSI (%) offish increased, however, total lipid of liver decreased (P<0.05) as CHO:L increased- The.se results indicate that hybrid tilapia efficiently utilize carbohydrate to lipid ratio for growth performance when increased up to 6.0 CHO:L ratio. Higher dietary CHO:L ratio up to 6 with low protein level in diet (25% CP) may result in sparing effect for high dietary protein (30%) with 4 CHO:L ratio.
Keywords
hybrid tilapia; carbohydrate to lipid ratio; Growth performance; total lipid of liver
Main Subjects
Fisheries
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