106 Feeds and Feeding. 



the oil meal by the same amount, the standard would be more 

 nearly reached, although there is already a fairly close agreement. 

 This shows that the fattening steer weighing 1,000 pounds will 

 be nurtured to very nearly his full requirement when receiving 

 the following ration: 10 pounds of corn stover, 8 pounds of oat 

 straw, 12 pounds of corn, 4 pounds of oil meal. 



136. Calculating a ration for the dairy cow. In determining 

 a ration for a dairy cow yielding 22 pounds of milk daily, we 

 choose from the list of feeds in Table C, 8 pounds of red clover 

 hay, 10 pounds of corn stover, 3 pounds of oat straw, for rough- 

 age, and 5 pounds each of corn meal and bran for concentrates. 

 The digestible nutrient^ in these are ascertained as follows: 



Calculations for dry matter and digestible nutrients in trial 

 ration for dairy cow. 



Red clover hay. Corn stover. 



In 100 In 8 In 100 In 10 



pounds. pounds. pounds. pounds. 



84.7^100X8 = 6.776 59.5-4-100x10=5.95 



6.8^-100x8 = .544 1.7-4-100x10 = .17 



35.8-4-100x8=2.864 32.4-4-100x10=3.24 



1.7 -4-100x8 = .136 . .7-4-100x10 = .07 



Oat straw. Corn meal. 



In 100 In 3 ^- In 100 In 5 



pounds. pounds. pounds. pounds. 



90.8-4-100x3=2.724 89.4-f-100x5=4.47 

 1.2^-100x3= .036 7.8-^-100x5= .39 



38.6-4-100x3 = 1.158 66.7-4-100x5=3.335 

 .8-^100x3= .024 4.3-4-100x5 = .215 



Bran. 

 In 100 In 5 



pounds. pounds. 



88.1-4-100x5=4.405 

 12.2-^-100x5= .61 

 39.2-4-100x5=1.96 

 2.7^-100x5= .135 



Arranging these results in tabular form, with the Wolff- Leh- 

 mann standard for comparison, we have the following: 



