310 



ILLINOIS DAIRYMEN'S ASSOCIATION. 



Table ^Xl. — Cost of raising skim-milk calves 



-Wo. days fed. calves, fed. 



Experim't No. of No. of Milk 



2 150 10 $37.10 



2 133 10 27.98 



3 133 10 26.92 



4 112 10 22.12 



5 112 10 21.93 



6 105 10 20.34 



7 105 10 19.82 



8 105 10 20.30 



9 140 10 24.26 



10 140 10 24.30 



11 140 10 24.18 



12 126 10 28.99 



13 126 10 29.67 



Average. 125.15 10 $25.22 



fed. ness fed. Labor. 

 Grain Rough- 



Total, calf. 

 Cost per 



$14.03 



$1.28 



$25.50 



$77.91 



$7.79 



11.43 



14.16 



22.61 



76.18 



7.62 



13.06 



14.18 



22.61 



76.77 



7.68 



6.97 



17.46 



19.04 



65.50 



6.55 



8.20 



16.98 



19.04 



66.15 



6.61 



13.53 



14.02 



17.85 



65.74 



6.57 



10.64 



14.38 



17.85 



62.69 



6.27 



10.48 



14.31 



17.85 



62.95 



6.29 



8.66 



18.67 



23.80 



75.33 



7.53 



8.62 



20.50 



23.80 



77.22 



7.72 



11.49 



18.67 



23.80 



78.14 



7.81 



27.70 



14.50 



21.42 



92.61 



9.26 



21.00 



16.50 



21.42 



88.59 



8.86 



$12.75 $15.05 $21.28 $74.29 $7.43 



Profit Realized by Milking the Cows. From table 

 XX, we see that at six months of age the average calf weighs 341) 

 pounds. From table VI we see that the average skim-milk 

 calf consumes 858.2 pounds of skim-milk, 124.1 pounds of grain 

 and 387.2 pounds of hay to produce 100 pounds of gain. The 

 feed cost of this 100 pounds of gain is $2.68, the labor 91 cents, 

 making a total of $3.59. This 858.2 pounds of skim-milk repre- 

 sents 953.5 pounds of whole milk, which, with an average test 

 of 4.08 per cent, makes a butter-fat yield of 38.9 pounds. The 

 average price of butter-fat at the college creamery during the 

 past year was 21.08 cents per pound. This makes a total value 

 of $8.20. Deduct from this the cost of raising a skim-milk calf, 

 $3.59, and we have left $4.61 to pay for the expenses of milking 

 and hauling 953 pounds of milk to the creamery. (See fig. 9 

 and 10.) 



These figures do not tell the whole story as to the profit. 

 Cows that are milked produce larger yields than when suckling 

 a calf. For instance, the college herd has averaged 6273.6 pounds 

 of milk per cow during the year 1902. The amount of skim- 



