首页> 外文期刊>Fisheries and Aquatic Sciences >Suitable Dietary Protein/Lipid Ratio for Hybrid, Female Red Sea Bream Pagrus major and Male Black Sea Bream Acanthopagrus schlegeli in the Juvenile Stage, Compared with Red Sea Bream
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Suitable Dietary Protein/Lipid Ratio for Hybrid, Female Red Sea Bream Pagrus major and Male Black Sea Bream Acanthopagrus schlegeli in the Juvenile Stage, Compared with Red Sea Bream

机译:与红海鲷比较,幼年阶段杂种,雌性红海鲷和雌性黑海鲷Acanthopagrus schlegeli的适宜饮食蛋白/脂质比

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摘要

To determine a suitable dietary protein/lipid (CP/CL) ratio in the early juvenile stages of hybrid porgy ( ), female red sea bream (RSB) male black sea bream, five diets with various CP/CL ratios-60/7, 55/12, 51/17, 46/23, and 41/28-were prepared and provided to juveniles in triplicate. At the smaller juvenile stage, , weighing 0.32 g, a significantly higher specific growth rate (SGR) and feed efficiency (FE) were seen with 60/7 and 55/12 diets. However, in RSB weighing 0.26 g, SGR and FE were higher with the 60/7 diet than the other diets at . At the larger juvenile stage, , weighing 3.7 g, there was no significant difference in SGR or FE among the diets, but RSB weighing 4.0 g fed 60/7, 55/12, and 51/17 diets had higher SGR and FE than 46/23 and 41/28 diets at . Moreover, survival and apparent nutrient retention of at both stages were significantly higher than those in RSB. These results indicate that both and RSB weighing ca. 0.3 g require a higher dietary CP/CL than those weighing ca. 4 g. Additionally, in both trials showed the suitability of a lower dietary CP/CL than RSB, indicating that mass production of juveniles will be more economical than RSB.
机译:为了确定杂种海豚(),雌性红鲷(RSB)雄性黑鲷,五种日粮CP / CL比率为60/7的五种饮食在青少年早期的合适饮食蛋白/脂质(CP / CL)比,准备55 / 12、51 / 17、46 / 23和41/28一式三份。在较小的幼鱼阶段,体重为0.32 g,在60/7和55/12日粮中观察到明显更高的比生长速率(SGR)和饲料效率(FE)。但是,在体重为0.26 g的RSB中,采用60/7饮食时的SGR和FE高于其他饮食。在较大的未成年人阶段,体重为3.7 g,日粮之间的SGR或FE均无显着差异,但60 / 7、55 / 12和51/17日粮中体重为4.0 g的RSB的SGR和FE高于46 / 23和41/28节食。此外,两个阶段的存活率和表观养分均显着高于RSB。这些结果表明RSB和RSB的权重均约为1。 0.3 g的日粮CP / CL比称重约0.2 g的日粮高。 4克此外,在两项试验中均显示出较低的膳食CP / CL较RSB更为合适,这表明青少年的大量生产比RSB更经济。

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