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:: دوره 15، شماره 3 - ( 1395 ) ::
جلد 15 شماره 3 صفحات 1078-1088 برگشت به فهرست نسخه ها
The effect of dietary dextrin levels on growth performance, body composition and hepatosomatic index in juvenile Siberian sturgeon, Acipenser baerii
چکیده:   (3852 مشاهده)

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.

متن کامل [PDF 255 kb]   (1989 دریافت)    
نوع مطالعه: پژوهشي | موضوع مقاله: aquaculture
دریافت: 1395/5/10 | پذیرش: 1395/5/10 | انتشار: 1395/5/10
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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-fa.html

The effect of dietary dextrin levels on growth performance, body composition and hepatosomatic index in juvenile Siberian sturgeon, Acipenser baerii. مجله علوم شیلاتی ایران. 1395; 15 (3) :1078-1088

URL: http://jifro.ir/article-1-2328-fa.html



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دوره 15، شماره 3 - ( 1395 ) برگشت به فهرست نسخه ها
Iranian Journal of Fisheries Sciences Iranian Journal of Fisheries Sciences
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