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:: دوره 10، شماره 3 - ( 1390 ) ::
جلد 10 شماره 3 صفحات 518-505 برگشت به فهرست نسخه ها
Growth, Molting and Survival Response of Juvenile Narrow Clawed Crayfish, Astacus leptodactylus, Fed Two Sources of Dietary Oils
چکیده:   (14297 مشاهده)

 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.

     
نوع مطالعه: پژوهشي | موضوع مقاله: Biology & physiology
دریافت: 1390/5/29 | پذیرش: 1394/6/22 | انتشار: 1394/6/22
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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-fa.html

Growth, Molting and Survival Response of Juvenile Narrow Clawed Crayfish, Astacus leptodactylus, Fed Two Sources of Dietary Oils. مجله علوم شیلاتی ایران. 1390; 10 (3) :505-518

URL: http://jifro.ir/article-1-222-fa.html



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دوره 10، شماره 3 - ( 1390 ) برگشت به فهرست نسخه ها
Iranian Journal of Fisheries Sciences Iranian Journal of Fisheries Sciences
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