226 



MILCH CATTLE THE JERSEY 



period of 120 days, they yielded a grand total of 124,524 Ibs. 

 of milk, which produced 5810 Ibs. of butter-fat. By adding 

 one-sixth to the fat to find the commercial butter produced, 

 this amount works out to about 270 Ibs. of butter per cow, 

 or a little over 2 J Ibs. per day. Of the 74 cows in competi- 

 tion (5 Swiss, 25 Jerseys, 15 Dutch, and 29 Shorthorns), 

 33 " produced sufficient fat in their milk to make an average 

 of 2 Ibs. or more of butter daily " during 120 days. Of these, 

 21 were Jerseys, 10 Dutch, I Shorthorn, and I Swiss. As 

 the accompanying table shows, the Dutch in milk production 

 were an easy first, the Jerseys second, and the Shorthorns last. 

 The Jerseys, as butter-fat producers, were first, the Dutch 

 second, and Swiss third. The greatest amount of solids- 

 not-fat was produced by the Dutch cows. This table gives 

 an example of figures published at the end of each ten 

 days during the dairy test at the World's Fair at St Louis : 



The cost of food stuffs consumed to produce one pound of 

 butter-fat was estimated at 13.51 cents for a Dutch cow, 10.56 

 cents for a Jersey cow, and 14.67 cents for a Swiss cow. The 

 cost of food producing one pound of milk was estimated at 

 .536 cents for a Dutch cow, and .58 cents for a Jersey. 



At the World's Fair in Chicago in 1893, 25 Jersey cows 

 were tested for 90 days. A comparison of the results got 

 during that time with the results obtained in a similar period 

 at St Louis, shows a marked improvement in the Jersey 

 breed in America within eleven years. 



Average yield of milk per head per day at St Louis 



Chicago 



Average yield of butter-fat per head at St Louis 



Chicago 



Average yield of fat per head per day at St Louis 

 Chicago 



Average percentage of fat in milk at St Louis 



Chicago 



Average percentage of solids-not-fat at St Louis 

 Chicago 



42.85 Ibs. 



32.66 

 176.39 

 140.64 



1-95 

 1.56 



4-57 

 4.78 

 8.80 

 9.22 



