02048naa a2200289 a 450000100080000000500110000800800410001910000210006024500910008126000090017252012430018165000160142465000110144065000140145165000100146565000190147565000230149465000100151765000280152765000260155565000150158165000140159665300240161065300230163465300210165777300800167815231072023-06-02       1993    bl uuuu     u00u1 u    #d1 aARMSTRONG, D. G.  aQuantitative animal nutrition and metabolismba general review.h[electronic resource]  c1993  aAbstracts: Examples of increasing productivity of livestock enterprises over the last three to four decades, and the contribution to such advances, of scientific knowledge including that of the nutrition of farm livestock are referred to. Space limitations necessitate restricting the review to consideration of ruminant livestock, with particular emphasis on ruminant digestive processes, on milk synthesis and on certain aspects of energy metabolism. Factors affecting the supply of amino acids to the host animal are referred to. The importance of synchronising N and energy supply to the rumen microorganisms to maximise microbial protein synthesis is emphasised and the need for knowlwdge of the extent to whigh particular feed protein escape fermentation within the rumen.Concerning milk synthesis, the importance of an adequate supply of glucose or glucose precursors is menitioned as are the causes of the low milk fat syndrome. Limitatins to existing knowledge of amino acid supply and milk protein synthesis are noted. Finally, aspects of ruminant energy metbolism studies are considered; particular stress is given to the importance of energy transaction in the intestinal wall as a major contributor to overall heat increment.  aAmino acids  aCattle  aDigestion  aGoats  aMilk synthesis  aRuminant nutrition  aSheep  aMetabolismo Energético  aMetabolismo Protéico  aNutrição  aRuminante  aFermentacao ruminal  aGlucose metabolism  aSintese do leite  tAustralian Journal of Agricultural Researchgv. 44, n. 3, p. 333-345, 1993.