Public Tests of Pure-bred Dairy Cows. 



429 



While the roughage supply for the cows under test was not large, 

 a heavy concentrate allowance of from 19 to 24 Ibs. was fed daily, 

 the Brown Swiss cows getting the largest and the Jerseys the least. 



694. Records of great cows. The Guernsey cow Yeksa Sun- 

 beam, 1 during a semi-official test beginning September 1904, produced 

 milk and fat from feeds as reported below. The concentrates con- 

 sisted of a mixture of bran, gluten feed, and oil meal. 



Ration and production of the Guernsey cow Yeksa Sunbeam. 



During the year ending January 25, 1909, the pure-bred Jersey 

 cow Jacoba Irene 2 produced 17,253 Ibs. of 5.53 per ct. milk, con- 

 taining 954.2 Ibs. fat. Besides pasture for 6 hours daily during 5 

 months, she consumed feed as follows: 



Concentrates 



Bran 1, 694 pounds 



Corn 661 pounds 



Oil meal 489 pounds 



Gluten 1, 615 pounds 



Ground oats 364 pounds 



Roughages 



Corn silage.. 7, 400 pounds 

 Chaffed hay.. 1,074 pounds 

 Long hay 3,000 pounds 



In a semi-official test ending December 22, 1907, the Holstein 

 Friesian cow Colantha 4th 's Johanna 3 produced 27,432.5 Ibs. of 3.64 

 per ct. milk, containing 998.26 Ibs. of fat, or an average yield of 2.73 



1 Wis. Sta., Bui. 131. 



2 Jersey Bui. 28, p. 274. 



3 Wis. Sta., Bui. 160. 



