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Research Article: Combined effects of dietary soybean lecithin and different lipid sources on growth, fatty acid profile, immune response, and plasma biochemistry in juvenile Asian seabass (Lates calcarifer)
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چکیده: (84 مشاهده) |
| A six-week investigation was conducted to examine the interactive influences of dietary lipid sources and soybean lecithin (SBL) levels on some physiological responses of Asian seabass (Lates calcarifer) juveniles (50.2±2.3 g). A research design containing three SL levels, including 0, 2 and 4%, and four lipid sources, including fish oil (FO), vegetable oils (VO, canola and soybean oils; 1:1), rendered animal fats (RAF, lamb and poultry oil; 1:1), and their mixture (MIX) (FO, VO, and RAF; 1:1:1). Based on this twelve experimental groups were designed as follow, 1) FO (FO without SBL), 2) FO+2 (FO+2% SBL), 3) FO+4 (FO+4% SBL), 4) VO (VO without SBL), 5) VO+2 (VO+2% SBL), 6) VO+4 (VO+4% SBL), 7) RAF (RAF without SBL), 8) RAF+2 (RAF+2% SBL), 9) RAF+4 (RAF+4% SL), 10) MIX (MIX without SBL), 11) MIX+2 (MIX+2% SBL) and 12) MIX+4 (MIX+4% SBL). Asian seabass juveniles were distributed into thirty-six 300-L container (15 fish in each replicate) filled with 220 L of sea water (45.0±0.5 g/L). The experimental diets were offered to fish three times daily (27.1±1.2°C). The lowest final weight was in VO group and the highest growth performance were in FO+2, RAF+2, RAF+4, MIX +2 and MIX+4 groups (p<0.05). In addition, feed intake (FI) and feed conversion ratio (FCR) ratio decreased in fish fed VO diet, but SL supplementation increased FI and FCR values (p<0.05). The amounts of n-3 / n-6 polyunsaturated fatty acids (PUFA) ratio, long chain-PUFA in fish fed diets containing FO increased. Plasma total protein and globulin in fish fed FO, VO+2 and RAF+4 were higher than those fed VO and RAF+2 diets. The highest and lowest plasma alternative complement activities were in FO+2 and VO groups, respectively (p<0.05). The fish fed with VO and RAF+2 diets had the highest and lowest plasma triglycerides levels, respectively. The highest and lowest plasma cholesterol were in RAF and FO+4, respectively. The findings of this investigation showed that dietary FO replacement with mixture of various lipid sources and SBL supplementation at 2% can improve growth, fatty acid profile and humoral immune responses in L. calcarifer juveniles. |
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متن کامل [PDF 523 kb]
(72 دریافت)
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نوع مطالعه: پژوهشي |
موضوع مقاله:
aquaculture
انتشار الکترونیک: 1404/9/25
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| ارسال نظر درباره این مقاله |
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Sabet Zanganeh M, Mousavi S, Torfi Mozanzadeh M, Zakeri M, Rezaie A. Research Article: Combined effects of dietary soybean lecithin and different lipid sources on growth, fatty acid profile, immune response, and plasma biochemistry in juvenile Asian seabass (Lates calcarifer). IJFS 2026; 25 (1) :65-84 URL: http://jifro.ir/article-1-6096-fa.html
Research Article: Combined effects of dietary soybean lecithin and different lipid sources on growth, fatty acid profile, immune response, and plasma biochemistry in juvenile Asian seabass (Lates calcarifer). مجله علوم شیلاتی ایران. 1404; 25 (1) :65-84 URL: http://jifro.ir/article-1-6096-fa.html
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