Se 6 aS OR ee a SS 
Regie as 3 ; ns es 5 
CALCULATING ECONOMICAL BALANCED RATIONS. 15 
The first seven columns of figures in Table V give the value of 
the protein and proportional carbohydrate in a ton of the various 
carbohydrate feeds when the price of cottonseed meal is as shown in 
the column headings. When the value of cottonseed meal varies 
from that given in the column headings the value of protein and 
proportional carbohydrate can be made to correspond by increasing 
the figures in one of the columns a proportional amount. For in- 
stance, when cottonseed meal is worth $12 per ton the figures in 
column headed $10 should be increased by +, or 20 per cent. 
To illustrate the method of arriving at the cost of a pound of 
excess carbohydrate let us assume that choice cottonseed meal is 
$35 and dried beet pulp $15 per ton. In the column headed ‘‘ $35.00” 
we find that when cottonseed meal is $35, the protein and propor- 
tional carbohydrate in a ton of dried beet pulp are worth $4.35. 
The excess carbohydrate in a ton of beet pulp thus costs $15 — $4.35 = 
$10.65. Since there are 1,238 pounds of this excess carbohydrate, a 
single pound costs $10.65+1,238=0.86 cents. A few additional 
problems will show the ease seth which computations may be made 
by use of this table. 
Problem 1.—Choice cottonseed meal is available at $35 per ton. 
Sorghum grain can be bought at $20, rough price at $28, and shelled 
corn at $30.35, or 85 cents per bushel. Which is the cheapest source 
of carbohydrate? 
Solution: 
Sorghum Shelled Rough 
grain. corn. rice. 
$20. 00 $30. 35 $28. 00 
2 fe d@ 16.53 14,45 
? 1273) 12.90 2 1B84)yu2a48e 2/1263) 23:50 
0.0101 0.0172 0.0186 
Problem 2.—Given cottonseed meal at $30 per ton and shelled 
corn at 95 cents per bushel, what is the value per ton of barley, oats, 
and rye for balancing a cottonseed meal ration ? 
Solution: 
$33.92 (Value of ton of corn at 95 cents per bushel. See Table TIT.) 
5.59 (See Table V, column headed $30, opposite corn, shelled.) 
1384) 28.33 (For 1384, see last column Table V, opposite corn, shelled.) 
0.0204 (Value of a pound of excess carbohydrates in corn.) 
Barley: A ton of barley contains 1,208 pounds of excess carbo- 
hydrates, which, at 2.04 cents per pound, is worth $24.642 The 
protein and the remaining carbohydrates are worth $7.30. (See 
Table V, column headed “$30.00,’’ opposite barley.) Hence, 
1 See column headed “$35.00”? (Table V). These figures represent the value of the protein and propor- 
tional carbohydrate in a ton of these feeds when cottonseed meal is worth $35 per ton. 
2 See last column, Table V. 
3 It is assumed that a pound of excess digestible carbohydrate has the same value regardless of the feed » 
which supplies it. When cottonseed meal is worth $30and corn 95 cents, a pound of excess carbohydrate 
has a value of 2.04 cents. This figure is used for determining the value of the excess carbohydrate in oats 
andrye. The value of the remaining carbohydrate content and the protein in these feeds is taken from 
Table V. 
