120 



MASS. EXPERIMENT STATION BULLETIN 253 



the whole the experiment was not much of a success. The principal argument 

 in favor of such a system is that it involves a minimum of labor. 



A summary of the work reported in the foregoing pages appears in Tables 

 1 and 2. Although cost figures are given, it must be remembered that these 

 will vary with time and place. They are, however, relative. More significant 

 are the figures for "average daily gain" and "dry matter consumed per 100 

 pounds of gain." Even with these, it should be remembered that where dif- 

 ferences between groups are very small, a repetition of the experiment might 

 not give the same result because of the marked differences often observed between 

 individual animals. 



Table 1. — Summary of Calf Feeding Experiments. 



Skim milk powder 



(drum dried plus red dog 

 and hominy cooked) 



Skim milk powder 



(drum dried plus red dog 

 and hominy uncooked) 



Buttermilk powder 



Buttermilk powder 

 (in limited amount) 



Diluted whole milk 



297 



1.70 



253 



16.35 



16.73 



28.40 



32.19 



246 



1.28 



304 



30.83 



The food costs are based on whole milk at 7 cents a quart, skim milk at 2 cents a quart, rowen 

 at $25 a ton, and all other feeds at prices current in January, 1929. 



Table 2. — Average Amounts of Feed Consumed up to Four Months of Age by the 

 Calves in These Experiments. 



Feed on Trial 



Liquid skim milk (control lot) 



Skim milk powder (spray dried) 



Skim milk powder (drum dried) 



Skim milk powder (drum dried in limited 



amount) 

 Skim milk powder (drum dried plus red dog 



and hominy cooked) 

 Skim milk powder (drum dried plus red dog 



and hominy uncooked) 

 Buttermilk powder 



Buttermilk powder (in limited amount) 

 Diluted whole milk 



Whole 

 milk 



Qts. 



131 

 80 

 83 



161 



138 



167 

 154 

 152 

 329 



Skim 

 milk 



Qts 



Skim Butter- 

 milk milk Grain Rowen 

 powder powder 

 Lbs. Lbs. Lbs. Lbs. 



250 

 255 



123 



161 



164 



88 196 



79 140 



119 163 



115 

 216 



258 

 141 



207 170 



193 125 207 



120 106 203 



166 248 



When red dog and hominy were fed cooked, 129 pounds of the grain consisted of the red dog- 

 hominy mixture; when they were fed uncooked, 114 pounds of the grain consisted of the red dog- 

 hominy mixture. In both cases the mixture was fed as gruel. 



