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:: Volume 15, Issue 3 (7-2016) ::
IJFS 2016, 15 Back to browse issues page
The effect of dietary dextrin levels on growth performance, body composition and hepatosomatic index in juvenile Siberian sturgeon, Acipenser baerii
M. Yazdani Sadati * , A. Borzoii , R. Akrami
, myazdanisadati@yahoo.com
Abstract:   (1758 Views)

The present study was carried out to determine the ability of Acipenser baerii in utilizing carbohydrate (dextrin) as a non protein energy source substituted with animal oil. A total of 65 juveniles A. baerii with an initial mean weight of 689 ± 62 g were distributed in 15 fiber glass tanks. Five diets were formulated including 0, 5, 10, 15 and 20% of dextrin and fed  for 8 weeks. Fish were weighed monthly and growth was evaluated in each treatment. At the end of experiment, body composition and hepatosomatic index were analyzed. There was no significant differences in body weight increase (BWI) and final weight (FW) among different groups (p>0.05). Increase of dextrin levels in diets led to an increase in feed conversation ratio (FCR) in fish fed diets containing 15 and 20% dextrin as compared to that in the control group and in fish fed the diet containing 10% dextrin although the differences were not significant (p>0.05). The specific growth rate (SGR) in all treatments were the same (p>0.05). The highest body protein and lipid were observed in fish fed diets containing 10 and 20 % dextrin, respectively (p<0.05). The hepatosomatic index (HSI) showed no significant differences in experimental groups compared to the control (p>0.05). In conclusion, juvenile A. baerii can be fed diets with high levels of dietary dextrin as a non protein energy source with no deleterious effects and a partial replacement of cheap carbohydrate with lipid is suggested to obtain the necessary energy in commercial diets.

Keywords: : Acipenser baerii, Lipid, Carbohydrate, Growth rate, Body composition
Full-Text [PDF 255 kb]   (1240 Downloads)    
Type of Study: Orginal research papers | Subject: aquaculture
Received: 2016/07/31 | Accepted: 2016/07/31 | Published: 2016/07/31
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Yazdani Sadati M, Borzoii A, Akrami R. The effect of dietary dextrin levels on growth performance, body composition and hepatosomatic index in juvenile Siberian sturgeon, Acipenser baerii. IJFS. 2016; 15 (3) :1078-1088
URL: http://jifro.ir/article-1-2328-en.html


Volume 15, Issue 3 (7-2016) Back to browse issues page
مجله علوم شیلاتی ایران Iranian Journal of Fisheries Sciences
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