6 INVESTIGATION IN ANIMAL NUTRITION 



per day for two or three weeks, according to the judgment of the 

 feeder, and then a gradual change was made to separator skim milk. 

 The roughage fed was choice upland prairie hay and corn silage. The 

 concentrates were farm grains and their standard by-products, such as 

 bran, flour middlings, and oil meal, except that 5 pounds of blood meal 

 was fed to each calf in Group III during the time it made the first 200 

 pounds gain. 



The special object in presenting this bulletin is to show the amount 

 and kind of feed needed by a calf to make normal and economical 

 growth under the conditions described for each approximate gain of 

 100 pounds in body weight. 



TABLE I 



FEED CONSUMED AND ACTUAL GAIN MADE DURING THE VARIOUS STAGES 

 OF GROWTH GROUP III 



Total 



399 | 2,163 | 1,263.1 | 1,452.6 | 1,170.3 498.1 



Table I shows that from the time of the arrival of the calves to 

 May 31, 1908, when they weighed, on an average, 99.6 pounds, they 

 had consumed, per head, 329 pounds of whole milk and 98 of skim 

 milk ; that September 27 they weighed 200 pounds, having made an 

 average gain of 100.4 pounds on 70 pqunds of milk,. 994 of skim milk, 

 99.7 of grain, 113.8 of hay, and 34.3 of corn silage; that December 20 

 they weighed 295.9 pounds, having made an average gain of 95.9 pounds 

 on 693 pounds of skim milk, 138.6 of grain, 167.6 of hay, and 283.2 of 

 corn silage, and so on to August 22, 1909, when they weighed 597.7 

 pounds, having made 498.1 pounds of gain on 399 pounds of milk, 

 2,163 of skim milk, 1,263.1 of grain, 1,452.6 of hay, and 1,170.3 of 

 silage. 



