Arkansas - Agricultural Communication Services - University of ...

Arkansas Animal Science Department Report 2001
Table 1. Composition of basal diets (as-fed basis). a
Item, % Starter Grower Finisher
Yellow corn 62.00 67.20 71.215
Soybean meal, 48% CP 30.75 25.60 21.90
Fat 4.00 4.00 4.00
Ethoxyquin 0.03 0.03 0.03
Mineral premix (NB-8557B) 0.10 0.10 0.10
Vitamin premix (NB-6157B) 0.25 0.15 0.125
Dicalcium phosphate 1.55 1.65 1.45
Calcium carbonate 0.82 0.77 0.68
Salt 0.50 0.50 0.50
Calculated composition
Crude protein 20.17 18.11 16.67
Lysine 1.10 0.95 0.85
Threonine 0.78 0.70 0.64
Tryptophan 0.24 0.21 0.19
Met + Cys 0.67 0.61 0.57
Calcium 0.80 0.80 0.70
Phosphorus 0.65 0.65 0.60
Metabolizable energy, kcal/lb 1567 1568 1576
a Basal diets were supplemented with 175 ppm of copper sulfate in the starter and grower phases and 125 ppm of copper
sulfate in the finishing phase (so that diets contained 185 and 135 ppm copper, respectively), as well as 0.2, 0.1, and 0.05%
Bio-Mos ® in the starter, grower, and finisher phases, respectively, resulting in four dietary treatments.
Table 2. Main effect means in response to dietary Bio-Mos ® and copper sulfate.
Bio-Mos ®
Copper Sulfate
- + SE P-value - + SE P-value
Starter
ADG, lb 1.27 1.28 0.04 0.857 1.21 1.35 0.04 0.017
ADFI, lb 3.02 2.97 0.06 0.559 2.94 3.05 0.06 0.206
Feed:gain 2.37 2.32 0.05 0.452 2.44 2.26 0.05 0.014
Grower
ADG, lb 1.99 2.03 0.05 0.605 1.93 2.09 0.05 0.063
ADFI,lb 5.06 5.08 0.12 0.902 4.96 5.18 0.12 0.191
Feed:gain 2.55 2.50 0.02 0.182 2.57 2.48 0.02 0.012
Overall
ADG, lb 1.96 1.98 0.04 0.646 1.90 2.03 0.04 0.028
ADFI, lb 5.24 5.37 0.11 0.447 5.23 5.38 0.11 0.351
Feed:gain 2.68 2.71 0.03 0.444 2.74 2.65 0.03 0.027
Weight, lb
Initial 43.9 43.9 0.01 0.292 43.9 43.9 0.01 0.458
Starter 70.7 70.9 0.78 0.844 69.3 72.3 0.78 0.015
Grower 149.7 151.6 2.55 0.606 146.3 155.0 2.55 0.029
Finisher 232.9 235.3 3.42 0.616 228.3 239.9 3.42 0.029
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