مشخصات پژوهش

خانه /Dietary butyric acid improved ...
عنوان
Dietary butyric acid improved growth, digestive enzyme activities and humoral immune parameters in Barramundi (Lates calcarifer)
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چکیده
A six-week feeding trial was conducted to determine the effect of butyric acid (BA) inclusion in diet on performance of Barramundi (Lates calcarifer). Fish (12.0 ± 0.2 g) were fed with four experimental diets contained 0.0 (control), 2.5, 5.0 and 10.0 g BA kg-1 in triplicate. Fish fed on 5 and 10 g BA kg-1 diets had higher growth and total alkaline protease and lipase activities than the other treatments. Fillet protein content in BA-supplemented groups was higher than the control. Liver catalase activity was highest in 2.5 g BA kg-1 group compared to other groups. The values of liver superoxide dismutase activity and serum total protein concentration in 5 and 10 g BA kg-1 treatments were higher than those in the control (P < 0.05). Moreover, the highest and the lowest level of serum lysozyme activity were noticed in the 10 g BA kg-1 and the control groups, respectively (P < 0.05). Also, the highest respiratory burst activity was observed in fish fed 5 g BA kg-1 feed. Supplementing diet with 2.5 or 5 g BA kg-1 resulted in higher serum hemolytic activity in fish compared with the other groups. The number of red and white blood cells increased in fish fed BA-supplemented diets compared to the control (P < 0.05). In conclusion, the results of this study showed inclusion of BA at 5 g kg-1 diet in L. calcarifer juveniles improved growth and upgraded the general health condition by enhancing fish antioxidant enzymes activities and hemato-immunological responses.
پژوهشگران حامد اعلمی فر (نفر اول)، سیاوش سلطانیان (نفر دوم)، آریا وزیرزاده (نفر سوم)، مصطفی اخلاقی (نفر چهارم)، وحید مرشدی (نفر پنجم)، منصور طرفی موزان زاده (نفر ششم به بعد)، امین غلامحسینی (نفر ششم به بعد)