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首页> 外文期刊>Aquaculture Research >Effects of the dietary protein levels and the protein to energy ratio in sub-yearling Persian sturgeon, Acipenser persicus (Borodin).
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Effects of the dietary protein levels and the protein to energy ratio in sub-yearling Persian sturgeon, Acipenser persicus (Borodin).

机译：亚一岁波斯st鱼（Acipenser persicus（Borodin））的日粮蛋白质水平和蛋白质能量比的影响。

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A 3x4 factorial design was used to evaluate the dietary protein requirement and to determine the optimum dietary protein to energy (P/DE) ratio in sub-yearling Persian sturgeon, Acipenser persicus, reared in the indoor system. Twelve experimental diets (40P16, 40P17, 40P18, 40P19, 45P19, 45P17, 45P18, 45P19, 50P16, 50P17, 50P18 and 50P19) were formulated and prepared to contain three protein levels (40%, 45% and 50%) and four digestible energy levels (16, 17, 18 and 19 kJ g-1 diet) at each protein level. Fish averaging 103.3+or-3.5 (mean+or-SD) were fed one of the experimental diets for 14 weeks. At the end of the experimental period, there were significant energy effects (P<0.05) on weight gain (WG) and specific growth rate (SGR). Weight gain and SGR tended to decrease, although non-significantly, with increase in dietary protein levels. Furthermore, there were significant protein and energy interaction effects on WG, SGR, hepatosomatic index and protein efficiency ratio. However, there were no significant dietary protein, energy or their interaction effects on feed efficiency for fish fed all diets. Weight gain and SGR of fish fed 40P19 were significantly higher than those of fish fed 40P16, 45P16, 45P17, 50P16 and 50P17 diets (P<0.05). There were no significant differences in WG and SGR among fish fed 40P17, 40P18, 40P19, 45P18, 45P19, 50P18 and 50P19 diets. These results may indicate that the optimum dietary protein requirement and the P/DE ratio could be 40% protein and 22.0 mg protein kJ-1 (40P18), respectively, in Persian sturgeon, based on growth performance and feed utilization.Digital Object Identifier http://dx.doi.org/10.1111/j.1365-2109.2011.03041.x
机译：3x4因子分解设计用于评估室内系统中饲养的亚岁波斯Per鱼（Acipenser persicus）的饮食蛋白质需求量，并确定最佳饮食蛋白质能量（P / DE）比。十二种实验饮食（ 40 P 16 ， 40 P 17 ， 40 P < sub> 18 ， 40 P 19 ， 45 P 19 ， 45 P 17 ， 45 P 18 ， 45 P 19 ， 50 P 16 ， 50 P 17 ， 50 P 18 和 50 P 19 ）被配制并制备为包含三个蛋白质水平（40％，45％和50％）和四个可消化能量水平（16、17、18）和每个蛋白质水平的19 kJ g -1 饮食）。将平均103.3+或-3.5（平均值+ -SD）的鱼喂食其中一种实验饮食，持续14周。在实验期末，能量增加对体重增加（WG）和比生长速率（SGR）产生显着影响（P <0.05）。体重增加和SGR趋于降低，尽管饮食中蛋白质含量的增加并不显着。此外，蛋白质和能量相互作用对WG，SGR，肝体指数和蛋白质效率比也有显着影响。但是，饲喂所有日粮的鱼没有显着的日粮蛋白，能量或其相互作用对饲料效率的影响。饲喂 40 P 19 的鱼的增重和SGR显着高于饲喂 40 P 16 的鱼， 45 P 16 ， 45 P 17 ， 50 P 16 < / sub>和 50 P 17 饮食（P <0.05）。饲喂 40 P 17 ， 40 P 18 ，的鱼的WG和SGR没有显着差异> 40 P 19 ， 45 P 18 ， 45 P 19 ， 50 P 18 和 50 P 19 饮食。这些结果可能表明最佳的日粮蛋白质需求量和P / DE比例分别为40％蛋白质和22.0 mg蛋白质kJ -1 （ 40 P 18 < / sub>），分别根据生长性能和饲料利用率在波斯st鱼中进行。数字对象标识符http://dx.doi.org/10.1111/j.1365-2109.2011.03041.x

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