Principles for the use of non-protein nitrogen and bypass proteins in diets of ruminants.
Principles for the use of non-protein nitrogen and bypass proteins in diets of ruminants.
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在反刍动物饮食中使用非蛋白氮和旁路蛋白的原则。
DOI：
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发表时间：
1977
期刊：
影响因子：
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通讯作者：
R. Leng
中科院分区：
文献类型：
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作者：
T. Kempton;R. Leng
与单胃动物相比，反刍动物在利用富含蛋白质的饲料方面明显效率低下，这一点被用作强调单胃动物优先于反刍动物生产肉类的重要性的论点。然而，最近的研究(见Preston&Willis，1970；Flrskov，Fraser，McDonald&Smart，1974；Kempton&Leng，J-976)表明，在正确平衡可消化营养物质的情况下，给予质量明显不同的饲料的反刍动物的生长速度可以比通常报道的要快得多($rskov，1976)。这些结果是在饮食中蛋白质的通常推荐需要量的大约5070%的情况下实现的。因此，在各种农业情况下，包括利用农产工业的低蛋白副产品，反刍动物可能是蛋白质饲料的高效使用者。
The apparent inefficiency of ruminants compared with monogastric animals in utilising protein rich feeds has been used as an argument to emphasise the importance of monogastric animals in preference to ruminants for meat production. Recent studies however (see Preston & Willis, 1970 ; flrskov, Fraser, McDonald & Smart, 1974 ; Kempton & Leng, J-976 ), have indicated that with correct balancing of digestible nutrients, ruminants given feed of apparently variable quality can grow at rates much greater than those generally reported ($rskov, 1976). These results have been achieved with approximately 50 70% of the usual recommended requirements for protein in a diet. Ruminants are therefore potentially highly efficient users of protein feeds under a variety of agricultural situations, including the utilization of low protein by-products of agro-industries.