CALCULATING ECONOMICAL BALANCED RATIONS. Vi. 
The proportional carbohydrate in barley, for instance, which is 
696 pounds, merely represents the carbohydrates obtained in alfalfa 
hay along with 180 pounds of protein, which is the amount of the 
latter contained in a ton of barley. 
As previously stated, the method here outlined is baal on the 
assumption that the “raver and “‘proportional carbohydrates” in a 
ton of any expensive carbohydrate feed are worth just what they 
would cost in the cheap protein feed used as a basis of comparison 
(alfalfa hay in Table VI). 
The first 10 columns of figures in Table VI give the value of the 
protein and the proportional carbohydrates in a ton of the various 
carbohydrate feeds when the price of alfalfa hay is as shown in the 
column headings. Other figures to correspond to a different value of 
alfalfa hay may be easily obtained either by combining the figures of 
two columns in Table VI or by increasing those of one column by a 
proportional part of those in another column. For instance, when 
alfalfa is worth $7, increase the figures found in column headed 
“$6.00” by one-fourth of those found in column headed ‘‘$4.00” to 
get figures corresponding to alfalfa at $7. 
To illustrate the method of arriving at the cost of a pound of excess 
protein let us assume that alfalfa hay is $10 per ton and barley is 
available at $22.88 a ton or 55 cents a bushel. In the column headed 
‘*¢10.00” we find that when alfalfa is $10 per ton the protein and the 
proportional carbohydrate in a ton of barley is worth $8.49. The 
excess carbohydrate in a ton of barley thus costs $22.88 —$8.49 = 
$14.39. Since there are 712 pounds of excess carbohydrate, a single 
pound costs $14.39 + 712 = $0.0202, or 2.02 cents. 
The use of Table VI is further illustrated in the following problem: 
Alfalfa hay is available at $12, shelled corn at $25, barley at $23, 
and milo grain at $24 a ton. Which of the three grains is cheapest as 
a source of carbohydrates for balancing an alfalfa ration ? 
Solution: 
Corn. Barley. Milo. 
$20.00 $23.00 $24.00 
fpr 110.19 19.85 
21004) 17.19 2712) - 1281 2751) 14.15 
020171 3 0.0180 3 0.01884 
In this case, corn is the cheapest source of carbohydrates. 
HOW TO USE TABLE VI. 
Follow the directions given for the use of Table V. 
1 Table VI, column’ headed ‘$12.00,’ opposite corn, barley and milo. These figures represent the 
value of the protein and proportional carbohydrate in a ton of the feeds in question. 
_ 2Table VI, last column. 
3 Value of a pound of excess carbohydrates. 
