ABC Company produces feedstuff for chicken. According to national standards, the feedstuff produced should meet nutritional criteria.
Crude Protein Coarse Fiber Lysine Calcium Phosphor Salt National Criteria 135 -145g/kg 50g/kg >5.6g/kg 23-40g/kg 4.6-6.5g/kg 3.7g/kg
The company produces feedstuff from several raw materials including corn, wheat, wheat bran, DL-met, and salt. The nutrition fact of different raw materials is listed in the following table.
|
|
Price ($/kg)
|
Crude Protein (g/kg)
|
Coarse Fiber (g/kg)
|
Lysine (g/kg)
|
Calcium (g/kg)
|
Phosphor (g/kg)
|
Salt (g/kg)
|
|
Corn
|
0.68
|
78
|
16
|
2.3
|
0.7
|
0.30
|
|
|
Wheat
|
0.72
|
114
|
22
|
3.4
|
0.6
|
0.34
|
|
|
Wheat Bran
|
0.23
|
142
|
95
|
6.0
|
0.3
|
10.00
|
|
|
Rice Bran
|
0.22
|
117
|
72
|
6.5
|
1.0
|
13.00
|
|
|
DL-met
|
23.00
|
|
|
|
|
|
|
|
Bone-meal
|
0.56
|
|
|
|
300
|
140
|
|
|
Calcium Carbonate
|
1.12
|
|
|
|
400
|
|
|
|
Salt
|
0.42
|
|
|
|
|
|
1,000
|
How would you mix those raw materials, according to national standards, to produce 1kg mixed feedstuff with least cost?