HORSES 187 



from the standing stalks, what does it cost to produce a bushel of com 

 when it yields 40 bushels per acre? How much does such corn cost 

 per ton of shelled corn? Per ton of ear com? 



3. If it costs $9.50 per acre to produce a crop of 2 tons of clover, 

 how much does it cost per ton to produce clover hay? 



FEEDING HORSES AT HEAVY LABOR 



Requirements of a Horse. — A balanced ration for a 

 horse at hard work must contain digestible nutrients in 

 approximately the following amounts: .18 lbs. of protein, 

 1.2 lbs. of carbohydrates, and .05 lbs. of fat, per 100 lbs. 

 live weight of horse. Thus a horse weighing 1,000 lbs. 

 requires, when at hard labor, 1.80 lbs. of protein, 12.0 

 lbs. of carbohydrates and .5 lbs. of fat. 



Combination of Feeds. — The proper combination of 

 the feeds requires some thought and some figuring, but 

 is a work that should be done on every farm or anywhere 

 that horses are fed grain. Only by studying the feeding 

 value of the different feeds, and their prices, can one be 

 sure of the most economical ration. Sometimes it pays 

 one to sell the feeds on hand and buy others in which the 

 nutrients can be obtained more cheaply. As the market 

 prices of the different feeds are changeable, one has a con- 

 stantly varying problem. The wide awake feeder always 

 has something to think about that is worth while. 



Rations for a 1,200 lb. Horse at Heavy Work.— A 1,200 

 lb. horse at heavy work requires 2.16 lbs. of protein, 14.40 

 lbs. of carbohydrates, and .60 lbs. of fat. 



The following rations will approximately supply these 

 requirements: See table on page 175. 



Ration No. I ' 



Pro. C. H Fat 



Oats 16 lbs. 1.552 8.336 .608 



Timothy hay 14 lbs. .420 5.992 .168 



Total nutrients 1.972 14.328 .776 



Ration No. U 



Pro. C. H. Fat 



Corn, dent 15 lbs. 1.125 10.170 .690 



Clover hay, red 14 lbs. 1.064 5.502 .252 



Total nutrients 2.189 15.672 .942 



