You calculate as a percentage, and the only way to do that is by using an example.
Assume that this "cow" that you're feeding corn to weighs 800 lbs. Grain is usually fed to a bovine at 1% of a cow's body weight per day, as-fed. So, the calculations are as follows:
800 lbs x 0.01 = 8 lbs of grain (as corn) per day. In the real world, this can range from this number to up to 12 lbs of grain per day for an 800 lb growing calf.
81.48 pounds per acre novanet
"Cow Corn" or animal feed is simply corn that is harvested later than sweet corn. "Cow Corn" is then dried and used for animal feed, or used in ethanol. Field corn is a far less sweet for of corn and is not the same as sweet corn. It has more carbohydrates and is grown differently. Most corn will grow only one ear per stalk. Newer hybrids of field corn can grow two or three ears per stalk. It has a far drier taste then sweet corn.
Assuming that the corn meets the normal acceptable test weight of 56 pounds per bushel, there are 1,785.7 bushels in 100,000 pounds of corn (maize).
The typical weight of feed corn (#2 yellow dent corn) is 56 pounds per bushel. By volume, there is about 8 gallons in a bushel. Thus there is 7 pounds in a gallon of corn.
Ten pounds per cow
Assuming the corn weighs 56 pounds per bushel as it should, 25 gallons (US, dry) is 175 pounds total weight.
Let pounds of lima=x and corn=y and since we want 7cents/pound lets set an equation to equal that. .09x + .06y = .07; x+y=1pound => y=1-x calculate calculate calculate and we get x=.3333 insert into equation and y=.6666. We see that x is half of y and since we require 2 pounds of corn we need 1 pound of lima beans and end up with 3 pounds of mixed vegetables . Check with .09 +.12=.21 ; .21/3=.07 Therefore we need one pound of lima beans.
92.344 pounds of protein per acre. As a side note, a US farmer who is producing only 5,432 pounds of corn per acre will not be in business very long, since that is only 97 bushels per acre. In 2010, US farmers will need to average over 170 bushels per acre just to break even on input costs.
Producers shoot for 3lb of gain per day in the feed lot
5 pounds per sq yard
1 horsepower = 550 foot-pounds per second
Average yield per year for the period 2005 - 2009: Field corn - 8.916 million bushels Sweet corn - 66,540,000 pounds