CARBOHYDRATE-TO-LIPID RATIOS IN DIETS FOR TILAPIA-ZILLII FINGERLINGS
CARBOHYDRATE-TO-LIPID RATIOS IN DIETS FOR TILAPIA-ZILLII FINGERLINGS
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DOI：
10.1016/0044-8486(88)90050-6
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发表时间：
1988-10-01
期刊：
影响因子：
4.5
通讯作者：
GARLING, DL
中科院分区：
文献类型：
--
作者：
ELSAYED, AFM;GARLING, DL
本试验配制了四种等氮（30%粗蛋白）、等热量（300 kcal ME/100 g）、碳水化合物（糊精）和脂类（鱼肝油-豆油混合物）水平不同的半纯化饲料，以测定罗非鱼对每种饲料的能量利用能力。将饲料以其体重的3%的每日速率饲喂给三组鱼，持续6周。结果表明，在不同的生长期和饲料转化率下，T.碳水化合物与脂质（CHO：L）比范围为8.76至0.81的zillifed饮食。含有CHO：L比为24.11的饮食产生显著的延迟性能，推测是由饮食中的必需脂肪酸缺乏引起的。这些结果表明T. Zilliican有效地利用碳水化合物和脂质作为能量来源。它们可以以与CHO：L生理燃料值相称的2.25：1的比率彼此替代。
Four isonitrogenous (30% crude protein), isocaloric (300 kcal ME/100 g), semipurified diets with variable levels of carbohydrates (dextrin) and lipids (cod liver oil-soybean oil mixture) were formulated to determine the ability ofTilapia zilliifingerlings to utilize each as an energy source. The diets were fed to triplicate groups of fish at a daily rate of 3% of their body weights for 6 weeks. No significant differences were observed in the growth and feed conversion ofT. zilliifed diets with carbohydrate-to-lipid (CHO:L) ratios ranging from 8.76 to 0.81. A diet containing a CHO:L ratio of 24.11 produced significantly retarded performance, presumably caused by an essential fatty acid deficiency in the diet. These results indicate thatT. zilliican efficiently utilize carbohydrates and lipids as energy sources. They can be substituted for one another at a rate of 2.25:1 commensurate with the CHO:L physiological fuel values.