FIFTY-FIRST ANNUAL CONVENTION 127 



per cent more fat per year than the two lowest producers, 

 cows B and G. 



The two highest producers of milk, cows I and F, pro- 

 duced an average of 2,083 lbs. or 32 per cent more milk per 

 year than the two lowest producers, cows B and G. This 

 shows that the cows varied more in milk than in fat pro- 

 duction. 



There were 59 calves dropped during the demonstra- 

 tion but they were disposed of as soon as the milk of the 

 dam was good; thus the problem was simplified in this case 

 to the amount of milk that could be produced per acre on 

 this land, and was concerned only with the cows and the 

 crops. Of course, this method is not recommended for the 

 general dairy farmer, because practically all dairy farmers 

 should raise sufficient heifers from their best cows mated 

 with a good pure-bred sire to replenish their herds. 



These cows went through the varied experience, prac- 

 tical difficulties, mishaps, unforeseen or unavoidable condi- 

 tions and contingencies that would naturally come in a 

 period of six years. But the vital fact of it all, the indis- 

 putable evidence, is that the cows produced an average of 

 7,470 lbs. of milk and 262 lbs. of fat per year for six years — 

 a distinctly better record than was shown by the best fourth 

 of the dairy herds in Illinois — and remained in good, vigor- 

 ous condition under these economical methods of cropping 

 and feeding. 



Farm Feed Alone. 



The character, condition, and production of the cows 

 in the Milk Per Acre Demonstration at the University of 

 Illinois were shown in the last articles. Parts V and VI of 

 this series. Each cow produced an average of 7,470 pounds 

 of milk and 262 pounds of fat per year for six years upon 

 corn and alfalfa, when all the feed was grown on the dem- 

 onstration farm, including one year when there was no 

 corn meal to feed. Although this record surpassed that of 

 the best one-fourth of the dairy farm herds of the state, this 

 is not the significant point. The demonstration was to show 

 production per acre with farm feeds economically produced. 

 There the record is far more outstanding. 



