EUROPEAN REFERENCE METHOD OF INVIVO DETERMINATION OF METABOLIZABLE ENERGY IN POULTRY - REPRODUCIBILITY, EFFECT OF AGE, COMPARISON WITH PREDICTED VALUES
EUROPEAN REFERENCE METHOD OF INVIVO DETERMINATION OF METABOLIZABLE ENERGY IN POULTRY - REPRODUCIBILITY, EFFECT OF AGE, COMPARISON WITH PREDICTED VALUES
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DOI：
10.1080/00071669008417288
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发表时间：
1990-09-01
影响因子：
2
通讯作者：
WISEMAN, J
中科院分区：
文献类型：
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作者：
BOURDILLON, A;CARRE, B;WISEMAN, J
1. 校正为零氮保留的表观代谢能 (AMEn) 是使用欧洲参考程序在 9 个欧洲实验室测量的。评估了七种颗粒饲料。 AMEn 是用成年公鸡和幼鸟进行测量的。 2. 实验室间标准偏差为干物质 (DM) 12.5 g/kg、总能量 0.085 MJ/kg DM、凯氏氮 0.768 g/kg DM、AMEn（成人）0.256 MJ/kg DM 和 AMEn（年轻）0.337 MJ/kg DM。实验室间相应的变异系数分别为1.42、0.45、2.15、1.88和2.60%。 3. 当用幼鸟进行测量时，实验日粮的 AMEn 值总是显着较低。当饮食中含有添加脂肪时，这种效应更加明显。 4.将牛油或大豆油以40g/kg的添加量掺入两种基础日粮中。成年鸟或幼鸟饮食的 AMEn 值之间没有观察到显着差异，这表明这些脂肪的 AMEn 能量值在该包含率下无法区分。 5. 通过估计氮累积量（通过摄入氮和排泄氮之间的差异或通过测量体重增加），在幼禽中获得了类似的 AMEn 值。确定的 AMEn 值与使用三个不同回归方程预测的值非常相似。
1. Apparent metabolisable energy corrected to zero-nitrogen retention (AMEn) was measured using the European reference procedure in 9 European laboratories. Seven pelleted diets were evaluated. AMEn was measured in with adult cockerels and young birds. 2. Between-laboratory standard deviations were for dry matter (DM) 12.5 g/kg, gross energy 0.085 MJ/kg DM, Kjeldahl nitrogen 0.768 g/kg DM, AMEn (adults) 0.256 MJ/kg DM, and AMEn (young) 0.337 MJ/kg DM. Corresponding coefficents of variation between laboratories were 1.42, 0.45, 2.15, 1.88 and 2.60% respectively. 3. AMEn values of experimental diets were always significantly lower when measured with young birds. This effect was more pronouced when diets contained added fat. 4. Tallow or soyabean oil were incorporated into two basal diets at 40 g/kg inclusion rate. No significant differences were observed between AMEn values of either diet with adults or young birds, suggesting that AMEn energy values of these fats are indistinguishable at this inclusion rate. 5. Similar AMEn values were obtained in young birds by estimating nitrogen accretion, either by the difference between intake and excreta nitrogen or by measuring body weight gain. Determined AMEn values were very similar to those predicted using three different regression equations.