THE USE OF LOCALY CULTIVATED RAPESEED (Brassica napus) MEAL  IN THE DIET OF CYPRINUS CARPIO L. AND ITS EFFECTS ON FISH GROWTH

A. Al-Shamma, A.; M. Ibrahim, A.; D. Mohammad, S.; H. Salman, A.

	THE USE OF LOCALY CULTIVATED RAPESEED (Brassica napus) MEAL IN THE DIET OF CYPRINUS CARPIO L. AND ITS EFFECTS ON FISH GROWTH
IRAQ JOURNAL OF AGRICULTURE
Article 1, Volume 14, Issue 5, 2009, Pages 0-0
Authors
A. A. Al-Shamma; A. M. Ibrahim; S. D. Mohammad; A. H. Salman
Abstract
A feeding experiment was condueted for 12 weeks in a close water recirculation system; to study the possibility of using local Rapeseed/Canola (Brassica napus) meal in the diet of common carp Cyprinus carpio L. Groups of twelve fish (24.1 ± 1.89g/fish) A 12 different diets were formulated containing different of rapeseed meal, that subected seperatly to boiling or washing with Hexane. Four different diets were formulated being a control diel (T1) (0% repeseed), contariol 20% boiled meal (T2) 20% untreated meal (T3) and 25% Haxane washed meal (T4), they were as partial replacement for soya med in fish diets. The Statistical analysis showed no significant differences (p>0.05) between the T1 (control) and the T2 diets in the final weight of fish, weight gain, feed conversion ratio and specific growth rate of fishes. However, the T1 and T2 diets significantly (p> 0.05)gave better results than the T3 and T4 diets, which, showed in siginficant differences. The results also showed no significant differences in protien efficiency ratio for T1, T2 and T3 (1.06, 1.05 and 0.94). The specific growth rate showed a significant differences (p>0.05) between the 1st diets (0.43%) and other. Whereas, the T2 diet was significantly higher than other experimental diets in gained protein (4.65%) and the protein productive value (26.0). This results suggest to preboil the meal for 10 min before formulatiy fish diet. More work is needed to improve the local rapeseed meal quality.

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