FIGURING RATIONS 77 



This ration is quite near the standard in all nutrients 

 and the nutritive ratio is about the same as that of the 

 standard. According to the standard, a ration consisting 

 of the above feeds in the amounts given would be suitable 

 for the 900 pound cow producing 16.6 pounds of milk daily. 



Helpful Rules in Figuring Rations. — A few simple rules 

 are of value in calculating rations. The average ration of 

 the average dairy cow is about as follows : 24 to 40 pounds 

 of silage, 6 to 10 pounds of hay, and i pound of grain mix- 

 ture daily for each pound of butter fat produced weekly, 

 or I pound of grain mixture for every 3 or 4 pounds of milk 

 produced. The nutritive ratio of this ration is between 

 1 : 6 and i : 7. 



A 1000 pound fattening steer will require about 15 pounds 

 of grain mixture or about 18 to 20 pounds of corn on the 

 ' cob, 15 to 20 pounds of com silage, and 6 to 10 pounds of 

 alfalfa or clover hay. A rule for feeding horses is to 

 supply about i poimd of hay daily for each 100 pounds of 

 live weight. The horse on light work should receive about 

 I pound of grain to each 100 pounds of live weight and the 

 horse at heavy work should receive one third to one half 

 more to keep it in good flesh. In the Haecker standard, 

 in the Appendix, the 1000 pound cow requires for main- 

 tenance, independently of the milk produced, 0.7 pound 

 of digestible protein, 7.0 pounds of digestible carbohydrate 

 material, and o.i pound of digestilale fat. For each 100 

 poimds that the cow weighs more than 1000 pounds, the 

 maintenance standard is increased by one tenth, and for 

 each 100 pounds that the cow weighs less than 1000 pounds, 

 one tenth is deducted. To the maintenance requirements 

 are added the amounts necessary to produce the required 

 amount of milk of a certain richness in fat, and the same 



