Social Studies, 13.04.2021 01:10, kyle65
Conversion Problems – Dry Matter and As-Fed
1. If corn silage contains 78% moisture, what percentage of dry matter (DM) does it contain?
2. How many pounds of dry matter are in 100 pounds of corn silage with 78% moisture?
Explain how you derived your
3. How many tons of dry matter are in 125 tons of the corn silage with 78% moisture?
4. A ration calls for 32.6 pounds of alfalfa hay on an as-fed basis. The alfalfa hay has 91.3 percent dry matter. How many pounds of dry matter are in the hay on a 100% dry matter basis?
5. A cow consumes 18 lbs of DM per day. The ration is 54% DM. How many pounds of as-fed feed will she consume in one day?
6. A horse needs 12 pounds of fresh orchard grass on a dry matter basis. Fresh orchard grass is 23% DM. How many pounds of fresh orchard grass must the horse consume per day?
Determine the Percentage of a Nutrient
7. What percent CP does a 45.2% CP (DM basis) cottonseed meal contain on an as-fed basis if the DM = 91%?
8. Complete the following table. Show your work in the space provided below.
%DM % CP
As-fed Basis %CP
DM Basis
a. 89.0 51.0
b. 91.0 53.0
c. 4.0 13.0
a.
b.
c.
9. On a DM basis, a feed has 16% CP and 3100 kcal/kg of metabolizable energy (ME). What are the CP and ME on an as-fed basis? The dry matter of the feed is 85%. Show your work in the space provided.
CP: ME:
Answers: CP = % ME = kcal/kg
Application
10. Perennial ryegrass hay contains 9% CP on a DM basis. Therefore, 1 lb of hay provides 0.09 lbs of CP on a DM basis. How many pounds of dry matter are required to provide 1.5 lbs of CP? Show your work in the space provided.
11. The perennial ryegrass hay above contains 90% DM. How many pounds of hay would you need to feed to provide the 1.5 lbs of CP on an as-fed basis? (How much hay would you have to put in front of an animal?) Show your work in the space provided.
12. A cow will eat 2.5% of her body weight in good quality hay on a DM basis. How many pounds of hay would a 1000 lb Pinzgauer cow eat on a DM basis? Show your work in the space provided.
13. The Pinzgauer cow needs 1.5 lbs of CP per day. Could your cow meet her CP requirements eating the ryegrass? Why or why not? Use your answers from above to help determine your answer.
Answers: 1
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Conversion Problems – Dry Matter and As-Fed
1. If corn silage contains 78% moisture, what percentag...
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