THE FEEDING OF ANIMALS 



53 



purpose, we will assume the case of a horse weighing approxi- 

 mately 1000 pounds and at moderate work. From the discus- 

 sion on food requirements for the horse, p. 57, we learn that the 

 standard ration is as follows : — 



Dry-Matter 



24.0 



Peotein 



2.0 



Carbohydhates 



11.0 



Fat 



0.6 



Ratio 



1:6.2 



Let US choose from Table II of the Appendix such foods as will 

 supply the conditions. For a trial ration, we will take 14 pounds 

 of timothy hay, 10 pounds of oats, and 2 pounds of bran. The 

 digestible nutrients in these are calculated as follows : — 



Calculation of dry-matter and digestible nutriments in trial ration for 

 a horse at medium work 



Timothy Hay 



In 100 In 14 



Pounds Pounds 



86.8 -^ 100 X 14 = 12.152 



2.8 -^ 100 X 14 = 0.392 



43.4 -^ 100 X 14 = 6.076 



1.4 + 100 X 14 = 0.196 



In 100 

 Pounds 



89.0 

 9.2 



47.3 

 4.2 



Oats 



In 10 

 Pounds 



-e- 100 X 10 = 8.900 

 100 X 10 = 0.920 

 100 X 10 = 4.730 

 100 X 10 = 0.420 



In like manner, calculate the digestible nutrients in two 

 pounds of bran and arrange the result in tabular form as fol- 

 lows : — 



First trial ration for lOOQ-pound horse at moderate work 



