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Table 1


Composition and Cost
 Vi4tamini


of the Concentrate Supplement (Protein, Mineral,
and the Pasture Supplemental Ration


 Concentrate supplement(a) Pasture supplemental ration(b)
Ingredients % Lb./ton Cost(c) % Lb./ton Cost(c)
Soybean meal (44% protein) 84.793 1696 $161.12 ---- ---
Ground sorghum grain -- --- ------- 96.94 1939 $67.87
Urea 45% N 3.756 75 3.00 0.50 10 0.40
Salt (trace-mineralized) 3,756 75 2.25 0.50 10 0.30
Defluorinated rock phosphate 7,511 150 7.50 2.00 40 2.00
Zinc bacitracin supplement 0.118 2.4(d) 3.84 0.04 0.8(f) 1.28
Vitamin A supplement 0.066 1.3(e) 0.52 0.02 0.4(g) 0.16
 100.000 1999.7 $178.23 100.00 2000.2 $72.01
Markup(h) 10.00 10.00
 $188.23 $82.01
(a) Concentrate supplement (protein, mineral, vitamin) fed in the corn silage ration
 in drylot.
(b) Supplemental ration fed on pasture at the level of 1% of body weight.
(c) Based on the following prices: soybean meal (44% protein) = $190.00/ton, ground
 sorghum grain = $70.00/ton, urea 45% N = $80.00/ton, salt (trace-mineralized)
 = $3.00/cwt., defluorinated rock phosphate = $100.00/ton, Baciferm 40 (zinc
 bacitracin supplement containing 40 grams of the antibiotic per pound) = $1.60/lb..
 and Perma Dual 30A (vitamin A supplement containing 30,000 I.U./gm.) = $0.40/lb.
(d) Zinc bacitracin added at the level of 96 gm./ton or 48 mg./lb. of concentrate
 supplement.
(e) Vitamin A added at the level of 17.7 million I.U./ton or 8,850 I.U./lb. of
 concentrate supplement.
(f) Zinc bacitracin added at the level of 32 gm./ton or 16 mg./lb. of pasture
 supplemental ration.
(g) Vitamin A added at the level of 5.4 million I.U./ton or 2,700 I.U./lb. of pasture
 supplemental ration.
(h) Mixing, milling, overage, storage, etc.---$10.00/ton.

 Table 2

 Proximate Analyses of the Corn Silage, Concentrate Supplement
 (Protein, Mineral, Vitamin), and Pasture Supplemental Ration
 Consumed During the Trial Period
 Corn Concentrate Pasture
 silage(a) supplement(b) supplemental
Item ration(c)
Moisture, % 66.67 10.19 10.88
Crude protein, % 2.84 44.53 11.57
Ash, % 1.25 15.92 4.34
Ether extract, % 1.31 1.60 2.53
Crude fiber, % 8.90 6.17 2.98
Nitrogen-free extract, % 19.03 21.59 67.70
(a) Corn silage (average of five samples collected at intervals during the trial).
(b) Concentrate supplement (protein, mineral, vitamin) fed in corn silage rations in
 drylot (average of five samples collected at intervals during the trial).
(c) Pasture supplemental ration (average of five samples collected at intervals
 during the trial).