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 پایگاه استنادی علوم جهان اسلام (ISC)

پایگاه اطلاعات جهاد دانشگاهی (SID) 



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:: Volume 10, Issue 3 (2011) ::
IJFS 2011, 10 Back to browse issues page
Growth, Molting and Survival Response of Juvenile Narrow Clawed Crayfish, Astacus leptodactylus, Fed Two Sources of Dietary Oils
A. Valipour * , F. Shariatmadari , A. Abedian , S. J. Seyfabadi , A. Zahmatkesh
, valipour32@yahoo.com
Abstract:   (14296 Views)

 The influence of five pure diets of isonitrogenous and isoenergic with different ratios of Clupeidae fish oil (F) and soybean oil (S) on growth, molting and survival of narrow-clawed crayfish, Astacus leptodactylus, was evaluated during an 8-weeks trial. As soybean oil replaced with fish oil in each treatment, gently. Test diets were inclusive F0/S100, F30/S70, F50/S50, F70/S30 and F100/S0 fish oil per soybean oil percent. The test organism housed in fiber-glass tanks of 100 l capacity with flowing water and aeration in tanks are supplied. The test followed a Randomized complete design. Each treatment organized with 6 replicates and totally 30 rearing tanks involved. At the end of the trial, the crayfish offered diet containing Clupeidae fish oil (rich in n-3 fatty acids) showed the lowest food conversion ratio and highest weight gain performance as well as molting and survival rates. In contrast, the diet containing soybean oil (rich in fatty acids n-6) contributed least to growth and other indices. Statistical test showed the differences between this two formulated diets were significant (P<0.05). Results indicated that n-3 series of fatty acids are required in the diet of A. leptodactylus.

Keywords: Astacus leptodactylus, Diet, Fish oil, Soybean oil, n-3, n-6, Growth, Survival, molting
Full-Text [PDF 482 kb]   (4360 Downloads)    
Type of Study: Orginal research papers | Subject: Biology & physiology
Received: 2011/08/20 | Accepted: 2015/09/13 | Published: 2015/09/13
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Valipour A, Shariatmadari F, Abedian A, Seyfabadi S J, Zahmatkesh A. Growth, Molting and Survival Response of Juvenile Narrow Clawed Crayfish, Astacus leptodactylus, Fed Two Sources of Dietary Oils. IJFS 2011; 10 (3) :505-518
URL: http://jifro.ir/article-1-222-en.html


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Volume 10, Issue 3 (2011) Back to browse issues page
Iranian Journal of Fisheries Sciences Iranian Journal of Fisheries Sciences
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