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TABLE A-13. MINERAL CONTENT OF COMMON FEEDSTUFFS AND TRACE MINERAL SUPPLEMENTS (DRY MATTER BASIS)*
Feedstuff Cl Mg K Na S Co Cu Fe Mn Zn
  %
 ppm x 10,000
Barley 0.2 0.1 0.6 0.0 0.2 0.1 7 90 22 38
Corn, ear 0.0 0.1 0.5 0.0 0.1 0.3 3 74 10 25
Corn, shelled 0.0 0.1 0.4 0.0 0.1 0.0 3 57 9 25
Oat grain 0.1 0.2 0.6 0.0 0.2 0.1 11 107 51 45
Linseed meal 0.0 0.7 1.5 0.2 0.4 0.5 28 194 41 36
Soybean meal 0.0 0.3 2.5 0.1 0.4 0.1 18 247 51 70
Alfalfa, early bloom 0.5 0.3 2.6 0.1 0.3 0.2 4 159 23 13
Bromegrass — 0.1 1.4 0.1 0.2 0.6 25 91 30 —
Corn silage 0.1 0.2 1.1 0.0 0.1 0.1 3 98 17 12
Timothy 0.5 0.2 1.6 0.2 0.1 0.1 5 140 46 43
Oat hay 0.5 0.3 1.5 0.0 0.1 0.1 15 155 64 39
  ppm x 10,000
Cobalt carbonate   46.0  
Copper sulfate   25.4  
Iron sulfate   21.8  
Manganese oxide   77.5  
Zinc oxide   36.4
*Abbreviations: Cl = chlorine, Co = cobalt, Cu = cooper, Fe = iron, Mg = magnesium, Mn = manganese, K = potassium, Na = sodium, S = sulfur, Zn = zinc, 1% = 10,000 ppm (parts per million).

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