112 



Feeds and Feeding. 



135. A ration for the dairy cow. In formulating a ration for a 

 dairy cow yielding 22 Ibs. of milk daily, as called for by the feed- 

 ing standard in Example Table IV, we choose from Example Table 

 III 8 Ibs. of red clover hay, 10 Ibs. of corn stover, and 3 Ibs. of oat 

 straw for roughage, with 5 Ibs. each of corn and wheat bran for 

 concentrates. 



Calculations for dry matter and digestible nutrients in trial ration for a 



cow. 



Corn stover 



In 100 In 10 



pounds pounds 



Dry matter 59 . 5-5-100 X 10=5 . 95 



Crude protein _. 1.4-*- 100x10=0. 14 

 Carbohydrates.. 31.2-5-100x10=3.12 

 Fat 0.7-*-100xlO=0.07 



Corn 



In 100 In 5 



pounds pounds 



Dry matter 89.4-5-100x5=4.470 



Crude protein . . 7 . 8-f-100x 5=0 . 390 

 Carbohydrates _. 66.8-^-100x5=3.340 

 Fat.. 4. 3 -f- 100X5=0. 215 



Red clover hay 



In 100 In 8 



pounds pounds 



Dry matter 84.7-5-100x8=6.776 



Crude protein _. 7.1-4-100x8=0.568 

 Carbohydrates.. 37.8-f-100x8=3.024 

 Fat _ 1.8-KLOOX8=0.144 



Oat straw 



In 100 In 3 



pounds pounds 



Dry matter 90.8-5-100x3=2.724 



Crude protein __ 1.3-5-100x3=0.039 

 Carbohydrates.. 39.5-^-100x3=1.185 

 Fat... 0.8-5-100x3=0.024 



Bran 



In 5 

 pounds 



In 100 

 pounds 



Dry matter 88.1-5-100x5=4.405 



Crude protein .. 11.9-5-100x5=0.595 

 Carbohydrates.. 42.0-5-100x5=2.100 

 Fat _ 2.5-^-100x5=0.125 



Arranging these findings we have : 



First trial ration for a 1000-lb. cow yielding 22 Ibs. of milk daily. 



