AnS 320 problem set
Poultry Nutrition
Name: ____________________
Due: November 17, 2012
Please show all work for full credit.
Ingredient
Corn
SBM
DDGS
MBM
AV oil
Limestone
Dical
CP
(%)
7.0
47.5
27.0
52.0
0.0
0.0
0.0
GE
ME
(kcal/kg) (kcal/kg)
4500
3250
4500
2400
4250
2600
3500
2150
9000
8500
0
0
0
0
Ca
(%)
0.0
0.0
0.1
10.3
0.0
38
16
Total P
(%)
0.1
0.1
0.3
5.1
0.0
0.0
21.5
Available P
(%)
0.03
0.03
0.2
3.0
0.0
0.0
20
1a. Formulate a broiler diet to an energy concentration of 3200 kcal/kg using 30% SBM and variable
amounts of corn and AV oil. Do the same for 30% DDGS and MBM.
1b. Explain the differences in oil content of the diets.
1c. Look up the energy value for SBM and DDGS for cattle and swine, explain the differences.
2a. Calculate the total and available P content of the diets you formulated in 1a.
2b. Determine how much dical you will have to add to each to meet the available P content of 0.30%
in the diet.
2c. Explain the difference in required dical for each diet.
3a. You are adding an enzyme cocktail to the above diets that should liberate 100kcal/kg from each
of the diets. Recalculate one of the diets above to include the enzyme addition (assume the enzyme
does not take up any space in the diet.
3b. The above question and equation does not take into account least cost formulation. Given that
corn is $7.50 per bushel and AV oil is $0.40 per pound determine which ingredient would be favored
by least cost formulation.