ILLINOIS DAIRYMEN'S ASSOCIATION. 227 



10 Jan. 31 



11 Feb. 25 



12 Jun. 25 



13 Sep. 15 



14 Jan. 10 



15 Dec. 26 



16 Jun. 18 



17 Jun. 6 



18 Sep. 17 



19 Nov. 4 



Feb. 



27 



202.9 



4.2 



8.52 



7547.8 



308.07 



Apr. 



29 



158.7 



3.2 



5.08 



6719.1 



221.13 



Sep. 



2 



196.6 



3.4 



6.69 



7590.2 



261.50 



Nov. 



4 



220.5 



3.0 



6.62 



8972.5 



263.52 



Mar. 



10 



256.9 



3.4 



8.73 



9454.3 



324.08 



Jan. 



6 



210.9 



4.7 



9.91 







Jly. 



14 



189.0 



4.0 



7.56 







Jly. 



14 



227.8 



4.6 



12.68 







Nov. 



17 



263.3 



2.8 



7.37 







Nov. 



17 



264.8 



3.4 



9.00 







Average 224.14 3.6 8.21 8056.78 275.78 



With this same thought in mind, consider tab]e 6, which 

 gives the weekly production of seven cows sold from nerd 3, and 

 the production of those substituted for them. After the owner 

 of this herd had made two tests he sold seven of his poorest cows 

 for $160 and purchased a pure-bred cow for $150. When asked 

 why he made such a radical change he said : "I didn't know my 

 cows were so poor ; I cannot produce milk with them as cheaply 

 as I should." Pointing to the milk scales which had been fur- 

 nished him and which he had been using, thoughtfully he said : 

 "I would not take $100.00 for them; they have been worth that 

 to me." Referring to the table you will see that although some 

 of the cows had been in milk a considerable time, the average 

 production per week was low. These cows were disposed of so 

 soon that no yearly record could be obtained. Of those cows 

 which were added to the herd later the average weekly produc- 

 tion for their first test is nearly twice as much as that of the 

 original seven. Although the stage of lactation and the season 

 of the year are not entirely comparable in the two groups, the 

 superior excellence of the latter is apparent. Of the five new 

 cows that have completed a year, the best yielded 9,454.5 pounds 

 of milk, containing 324.08 pounds of butter fat. The owner is 

 now thoroughly alive to the importance of testing and is not only 

 buying new cows and testing them, but is using a pure-bred dairy 

 bull in his herd. 



Let us make an application of what has already been present- 

 ed. There are two more tables, but I will not bore you with their 



