01638naa a2200277 a 450000100080000000500110000800800410001902400330006010000180009324501160011126000090022752008530023665000190108965000210110865000220112965000100115165000100116165300140117165300110118565300290119665300120122570000200123770000180125770000180127577300670129320757322017-09-18       1956    bl uuuu     u00u1 u    #d7 a10.2527/jas1956.152559x2DOI1 aALBERT, W. W.  aThe sulfur requirement of growing-fattening lambs in terms of methionine, sodium sulfate, and elemental sulfur.  c1956  aA comparative study was made of the sulfur requirements of growing-fattening lambs in terms of methionine, sodium sulfate, and elemental sulfur, added to a purified ration containing 4% urea. The gains on five levels of each of the sulfur sources fitted a quadratic curve. On the basis of the fitted curves, the calculated sulfur percentage requirement was for methionine 0.64±0.048, for sodium sulfate 1.2 7±0.44, and for elemental sulfur 0.47±0.028, respectively. On the basis of total sulfur about 70% less sulfur was needed as methionine in the diet than as elemental sulfur, or about 50% less as sulfate sulfur. The data suggest that sodium sulfate may be used more efficiently than elemental sulfur.  Satisfactory agreement was found between the sulfur requirements of growing-fattening lambs as reported in studies of two different years.  aAnimal feeding  aAnimal nutrition  aFeed requirements  aLambs  aSheep  aFattening  aGrowth  aNutritional requirements  aSulphur1 aGARRIGUS, U. S.1 aFORBES, R. M.1 aNORTON, H. W.  tJournal of Animal Sciencegv. 15, n. 2, p. 559-569, May, 1956.