Experimental Researches on the Food of Animals, and the Fattening of Cattle, with Remarks on the Food of Man

Experimental Researches on the Food of Animals, and the Fattening of Cattle, with Remarks on the Food of Man

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This historic book may have numerous typos and missing text. Purchasers can usually download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1858 edition. Excerpt: ...Nrraoenn AS, former, the composition and difference of these substances being as follows: --c. n. 0. Starch---12 10 10 Sugar---12 12 12 0 2 2 difference. II. Dzference in the Amount of Nitrogen, and consequent Nutritive Power of Malt and Barley.----In the preceding formulae the quantity of nitrogen lost has been somewhat exaggerated. In the formulae for malt the true amount of nitrogen approaches nearly 1?; equivalent, or 1'4; but the quantity of nitrogen in different parts of the same sample of malt varies very remarkably, indeed to such a degree that the results obtained by three analysts, who had obtained almost identical numbers for the nitrogen in barley, differed as much as from 1'19 to 1'62. This indeed is a circumstance which might be anticipated from the nature of the process of malting, and is one which renders malt a very objectionable substance as an article of nourishment, since, in the same specimen, different portions would vary so much according to the preceding data, as that 73 lbs. of one part would produce as much effect in the nourishment of an animal as 100 lbs. of another portion. _ ' If we estimate the albuminous principles of grain to contain 16 per cent. of nitrogen, then the amount of these substances in the barley examined will amount to l2056 per cent., while the percentage of these principles in the malt will only be, by the lowest estimate of nitrogen, 7'43, and by the highest result it will be 10-So that the relative nutritive powers of barley and malt, according to these estimates, will be as follows: A NUTRITIVE ELEMENT. 103 59 barley = 100 malt, according to lowest estimate. 79--: 100--highest---These important facts render it also obvious that the difference in the amount of carbon in the two analyses of...show more

Product details

  • Paperback | 44 pages
  • 189 x 246 x 2mm | 95g
  • Rarebooksclub.com
  • United States
  • English
  • black & white illustrations
  • 1236957202
  • 9781236957207