Furuse M, Yokota H, Tasaki I
Br Poult Sci. 1985 Jul;26(3):389-97. doi: 10.1080/00071668508416827.
The effect of metabolisable energy (ME) intake on the growth and utilisation of dietary protein and energy in germ-free (GF) and conventional (CV) chicks was investigated in two experiments. In experiment 1 a high energy diet (HED, 14.8 kJ ME/g) and a marginally-adequate energy diet (AED, 11.7 kJ ME/g) were fed to the GF and CV chicks at 240 g/2 birds/10 d. In experiment 2 a diet with 13.7 kJ ME/g was fed at 118 g (low level, LL) or 128 g (high level, HL)/bird/10 d. Body weight gain, protein retention and protein retention rate were similar in GF and CV chicks on both AED and HED in the first experiment, but in the second were higher in GF than in CV chicks. The increased ME intake of the CV chicks in experiment 2 may be too small to compensate for the increased requirement. ME intake was significantly higher in the CV chicks than in the GF chicks, whereas energy retention was similar in both groups.
在两项实验中，研究了代谢能（ME）摄入量对无菌（GF）和常规（CV）雏鸡日粮蛋白质和能量的生长及利用的影响。在实验1中，以240克/2只鸡/10天的量向GF和CV雏鸡投喂高能日粮（HED，14.8千焦ME/克）和能量略充足的日粮（AED，11.7千焦ME/克）。在实验2中，以118克（低水平，LL）或128克（高水平，HL）/只鸡/10天的量投喂含13.7千焦ME/克的日粮。在第一个实验中，AED和HED组的GF和CV雏鸡的体重增加、蛋白质保留量和蛋白质保留率相似，但在第二个实验中，GF雏鸡的这些指标高于CV雏鸡。实验2中CV雏鸡增加的ME摄入量可能太小，无法弥补增加的需求。CV雏鸡的ME摄入量显著高于GF雏鸡，而两组的能量保留量相似。
