FEEDS AND FEEDING. 333 



The purpose of any feeding standard is to show the amounts 

 of digestible protein, carbohydrates and fat supposed to be best 

 adapted to different animals when kept for different purposes. 

 In selecting feeds from which to compound a ration that shall 

 contain the right amount of digestible nutrients it is necessary 

 to observe also that the total amount of organic or dry matter 

 is maintained approximately within the limits of the standard; 

 otherwise although the proper amounts of digestible nutrients 

 might be secured the total bulk of the ration would be so great 

 as to preclude its consumption by the animal. 



In calculating a feeding ration it will usually be necessary 

 to formulate several trial rations before we get just the ration 

 desired, because one cannot determine merely from observation 

 just how much of one or more feeds will be required to furnish 

 the amount of dry matter and digestible materials which we want 

 the ration to contain. 



The following ration, made up of 40 Ibs. of corn stover, 

 15 Ibs. clover hay, 3 Ibs. ground corn and I Ib. cottonseed meal 

 will serve, however, to indicate the method : 



CORN SILAGE. 



In ioo In 40 



Pounds Pounds 



Dry matter 26.4, 100 X 40= 10.56 



Crude protein 0.9 



100X40= 0.56 



Carbohydrates .................... 14.2 100X40= 5.68 



Fat ............................... 0.7 100 X 40 = 0.28 



CLOVER HAY. 



In IOO In 75 



Pounds Pounds 



Dry matter ....................... 84.0 100X15= 12.6 



Crude protein ............. ....... 7.1 100X15= 1.06 



Carbohydrates .................... 38.8 



100 X IS = 0.27 



GROUND CORN. 



In ioo In 3 



Pounds Pounds 



Dry matter ....................... 85.0 100 X 3= 2.55 



Crude protein ..................... 6.7 100 X 3= 0.20 



Carbo-hydrates .................... 64.3 100 X 3= 1.93 



Fat 3.5 100 X 3= 0.10 



