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Table 1 Composition (% DM) of diets fed to primiparous and multiparous cows on Farm 12 and Farm 9

From: Comparison of rumen bacterial communities in dairy herds of different production

  Farm 12 Farm 9
Primiparous Multiparous Primiparous Multiparous
Ingredient composition, %DM
 Corn Silagea 38.9 35.1 47.2 46.2
 Alfalfa Silagea 11.3 12.8 --- ---
 Triticalea --- --- 8.3 10.2
 Grass Haya --- 1.4 --- ---
 Corn Ground Fine 18.2 20.6 15.2 14.9
 Wheat Middlings 8.1 5.4 --- ---
 Soybean Hulls --- --- 5.5 5.4
 Corn Distillers --- --- 3.7 3.6
 Citrus Pulp --- --- 1.1 1.1
 AminoPlusb 3.7 3.8 7.4 7.2
 SoyPlusc 3.7 3.7 --- ---
 Canola Meal 9.7 8.9 --- ---
 Soybean Meal 0.4 1.7 5.5 5.4
 Blood Meal 0.5 0.7 1.0 1.0
 Urea --- --- .0.4 0.4
 Molasses 2.1 1.6 1.3 1.3
 Energy Booster 100d 0.4 0.9 --- ---
 Megalace 0.5 0.6 --- ---
 Pork-Vegetable Fat --- --- 0.5 0.5
 Calcium Carbonate 0.99 1.01 1.09 1.11
 Sodium Sesquicarbonate 0.87 0.92 0.74 0.72
 Sodium Chloride 0.37 0.38 0.46 0.45
 Magnesium Oxide 0.13 0.13 0.18 0.18
 Methionine, MFPf 0.07 0.05 0.11 0.11
 Methionine, SmartamineMg --- 0.02 --- ---
 Mineral-Vitamin Mixh 0.06 0.11 0.22 0.22
 Rumensin 90i,j, mg/kg 150.0 149.2 50.4 50.4
 Chromium .propionate 4%,k,l mg/kg 2.60 2.54 1.01 1.01
Chemical composition %DM
 Crude Protein 16.5 16.7 16.2 15.0
 Soluble Protein, % CP 31.4 31.2 32.2 28.4
 RDPm estimated, % CP 59.1 56.9 60.2 59.4
 ADF 18.0 18.9 19.2 19.6
 NDF 28.8 28.3 30.6 31.3
 NFCn 44.0 44.6 42.6 43.1
 Sugar 4.5 4.1 4.3 5.4
 Starch 27.5 32.1 26.1 29.2
 Fat 3.8 3.8 3.4 3.4
 Ash 6.9 6.7 7.2 7.2
 Ca .92 .82 .96 .79
 P .48 .48 .34 .33
  1. aForage
  2. bHeat treated soybean meal; Ag Processing Incorporated (Omaha, Nebraska)
  3. cExtruded soybean meal; West Central Cooperative (Ralston, Iowa)
  4. dRumen inert fat; Milk Specialties (Eden Prairie, Minnesota)
  5. eRumen inert fat; Arm and Hammer Animal Nutrition (Princeton, New Jersey)
  6. fRumen available methionine source; Novus International (Saint Charles, Missouri)
  7. gRumen protected methionine; Adisseo (Alpharetta, Georgia)
  8. hConcentration (DM basis); Farm 12 Primiparous: 39 mg of Fe/kg, 32,795 mg of Zn/kg, 7695 mg of Cu/kg, 18,091 mg of Mn/kg, 460 mg of Se/kg, 616 mg of Co/kg, 622 mg of I/kg, 3203 KIU of vitamin A/kg, 804 KIU vitamin D/kg, 22 KIU vitamin E/kg; Farm 12 Multiparous: 3300 mg of Fe/kg, 21,000 mg of Zn/kg, 5556 mg of Cu/kg, 11,118 mg of Mn/kg, 141 mg of Se/kg, 543 mg of Co/kg, 222 mg of I/kg, 1032 KIU vitamin A/kg, 258 KIU vitamin D/kg, 10 KIU vitamin E/kg; Farm 9 Primiparous and Multiparous 4537 mg of Fe/kg, 19,638 mg of Zn/kg, 3724 mg of Cu/kg, 10,157 mg of Mn/kg, 130 mg of Se/kg, 102 mg of Co/kg, 305 mg of I/kg, 1067 KIU of vitamin A/kg, 267 KIU vitamin D/kg, 6 KIU vitamin E/kg;
  9. iElanco Animal Health (Greenfield, Indiana)
  10. jProvided 14.6 and 15.0 mg monensin/kg diet DM to Farm 12 primiparous and multiparous cows, respectively, and provided 14.8 and 14.5 mg monensin/kg diet DM to Farm 9 primiparous and multiparous cows, respectively
  11. kKemin (Des Moines, Iowa)
  12. lProvided 0.25 and 0.26 mg chromium/kg diet DM to Farm 12 primiparous and multiparous cows, respectively, and provided 0.30 and 0.29 mg chromium/kg diet DM to Farm 9 primiparous and multiparous cows, respectively
  13. mRumen degraded protein estimated using CPM-Dairy software
  14. nNon-Fiber Carbohydrate calculated value (100-CP-NDF-Fat-Ash)