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首页> 外文期刊>North American Journal of Aquaculture >Growth performance and tissue fatty acid composition of largemouth bass fed diets containing fish oil or blends of fish oil and soy-derived lipids.
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Growth performance and tissue fatty acid composition of largemouth bass fed diets containing fish oil or blends of fish oil and soy-derived lipids.

机译：大嘴鲈鱼饲喂鱼油或鱼油和大豆衍生脂质的混合物的生长性能和组织脂肪酸组成。

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Dietary fatty acid (FA) composition influences the composition of fish tissues to a greater or lesser extent depending on the proportion of saturated FAs (SFAs) and medium-chain (MC) polyunsaturated FAs (PUFAs) that the feed contains. Our purpose was to evaluate the growth performance and tissue composition of largemouth bass Micropterus salmoides that were fed diets containing soy-derived lipids modified to contain more SFAs and less MC-PUFAs. Triplicate tanks of largemouth bass (~1.6 g) were fed diets containing fish oil (FO diet) or 50:50 blends of fish oil and low-18:3(n-3) soybean oil, hydrogenated soybean oil (HYD-SBO diet), or SFA-enriched soybean oil (SFA-SBO diet). After 10 weeks, production performance was unaffected by diet, and weight gain (mean+or-SE=518+or-19%), feed conversion ratio (1.29+or-0.03), specific growth rate (2.59+or-0.04% of body weight/d), and feed intake (1.42+or-0.03% of body weight/d) indicated that all diets were accepted and well utilized. Carcass FA composition changed to reflect the diet, but composition of largemouth bass that were fed the HYD-SBO and SFA-SBO feeds was not markedly different from that of fish given the FO feed. Fish oil can be spared without affecting production performance of juvenile largemouth bass; however, to minimize changes to tissue FA profile, soy lipids containing more SFAs and less MC-PUFAs may be most appropriate.
机译：饮食中的脂肪酸（FA）组成或多或少会影响鱼组织的组成，具体取决于饲料中所含的饱和FA（SFA）和中链（MC）多不饱和FA（PUFA）的比例。我们的目的是评估大嘴鲈鱼的生长性能和组织组成，这些大嘴鲈鱼饲喂含有大豆衍生脂质的饲料，这些大豆脂质被修饰为含有更多的SFA和更少的MC-PUFA。向大口黑鲈（一式三份）（约1.6克）的罐中喂食含鱼油（FO饲料）或鱼油和低比例18：3（n-3）大豆油，氢化大豆油（HYD-SBO饲料）的50:50混合物）或富含SFA的大豆油（SFA-SBO饮食）。 10周后，生产性能不受日粮的影响，体重增加（平均+或-SE = 518 +或-19％），饲料转化率（1.29+或-0.03），比生长率（2.59+或-0.04％） （d / d）和饲料摄入量（d / d的1.42％或-0.03％）表明所有饮食都被接受并得到了很好的利用。体FA组成发生变化以反映日粮，但是饲喂HYD-SBO和SFA-SBO饲料的大嘴鲈鱼的成分与使用FO饲料的鱼的成分没有明显不同。鱼油可以在不影响大嘴鲈幼鱼生产性能的情况下节省下来;但是，为了最大程度地减少组织FA分布的变化，最适合使用含有更多SFA和更少MC-PUFA的大豆脂质。

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