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Effect of Low Protein and Low Energy Diet on Physiological Status and Digestibility of F344 Rats

机译:低蛋白低能量饮食对F344大鼠生理状态和消化率的影响

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摘要

A long-term raising study was carried out on male F344/DuCrj rats with three low protein (Crude Protein (CP); 14.5, 11.5, 8.5%) and low energy (Digestible Energy (DE); 2.0 kcal/g) diets from 4 to 104 weeks of age. In rats fed the 8.5% CP diet, body weight and digestible crude protein (DCP) consumption at 10 weeks of age were lower (P<0.05) but the body weight at 50 weeks of age was higher (P<0.05) than in the other groups. In rats fed the 8.5% CP diet the crude fat digestibility was higher (P<0.05), and the CP/nitrogen-corrected metabolizable energy (MEn) ratio was low. On the other hand, the mean survival time at 80 weeks of age was shorter in rats fed the 8.5% CP diet (P<0.05).
机译:对雄性F344 / DuCrj大鼠进行了长期饲养研究,该大鼠具有三种低蛋白(粗蛋白(CP); 14.5、11.5、8.5%)和低能量(消化能(DE); 2.0 kcal / g)的日粮4至104周龄。饲喂8.5%CP饮食的大鼠,在10周龄时的体重和可消化的粗蛋白(DCP)消耗量较低(P <0.05),但在50周龄时的体重和可消化粗蛋白(DCP)消耗量较高(P <0.05)。其他组。在饲喂8.5%CP饮食的大鼠中,粗脂肪消化率更高(P <0.05),而CP /氮校正的代谢能(MEn)比率则较低。另一方面,饲喂8.5%CP饮食的大鼠在80周龄时的平均存活时间较短(P <0.05)。

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