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:: Volume 7, Issue 2 (7-2008) ::
IJFS 2008, 7 Back to browse issues page
Effect of dietary digestible energy level on growth indices of kutum (Rutilus frisii kutum Kamenskii, 1901)
H.A. Noverian * , N. Shabanipour , M.R. Khoushkholgh , M.R. Hosseini
, hamidnav@yahoo.com
Abstract:   (459 Views)
A 60-days feeding trail was conducted to evaluate the effects of dietary digestible energy levels (DE) on kutum, Rutilus frisii kutum. Four is nitrogenous (35% protein) diets with digestible energy levels of 2500, 2600, 2700 and 2800kcal kg-1 was tested. Two hundred and forty advanced fry (2±0.4g) were randomly distributed in 12 fiberglass tanks of 400L capacity. Nutritional responses in terms of WG, FCR and PER as well as survival rate (SR) significantly improved (p<0.05) with increase in DE level from 2500 to 2800 kcal kg-1 diet, but no difference between 2600 and 2700kcal kg-1 diet was found. Body crude protein and fat significant were increased (p<0.05) when the dietary energy was raised up from 2500 to 2600kcal DE kg-1 diet, but a further increase on energy did not improve the fish crude protein and fat content.
Keywords: Rutilus frisii kutum, Nutritional evaluation, Digestible energy, Growth performance
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Type of Study: Orginal research papers | Subject: aquaculture
Received: 2017/12/9 | Accepted: 2017/12/9 | Published: 2017/12/9
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Noverian H, Shabanipour N, Khoushkholgh M, Hosseini M. Effect of dietary digestible energy level on growth indices of kutum (Rutilus frisii kutum Kamenskii, 1901). IJFS. 2008; 7 (2) :205-214
URL: http://jifro.ir/article-1-3094-en.html


Volume 7, Issue 2 (7-2008) Back to browse issues page
مجله علوم شیلاتی ایران Iranian Journal of Fisheries Sciences
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