No. 4.] CONCENTRATED FEED STUFFS. 



31» 



III. HOW BEST TO UTILIZE THE CONCENTRATED 



FEEDS. 

 Attention has already been called to the fact that such 

 feeds are especially valuable because of their digestil)ility and 

 high protein content. Home-grown coarse feeds on the con- 

 trary are of a starchy nature, and much less digestible. Now 

 many experiments have shown that milch cows of 1,000 

 pounds live weight need the following quantities of digest- 

 ible nutrients dail}" : Protein, 2.5 pounds; fat, .5 pound; 

 carbohydrates, 13.0 pounds; total, 16.0 pounds; nutritive 

 ratio, 1 : 5.4 pounds. Such a ration contains 16 pounds of 

 total nutrients and about 5. J times as much carbohydrates 

 as protein, and it is said to be properly balanced. Now, if 

 a cow should be fed all she would consume of any palatable, 

 dry, coarse fodder, such as an average quality of hay, she 

 would have at her disposal the following digestible constit- 

 uents : Protein, 1.4 pounds; fat, 0.4 pound; carbohy- 

 drates, 12.4 pounds; total, 14.2 pounds; nutritive ratio, 

 1 : 9.5 pounds. Such a ration lacks in protein as well as 

 in total digestible matter. It has 9.5 times as much car- 

 bohydrates as protein, and is said to be improperly 

 balanced. It is in order to increase the protein and the 

 total digestible matter, that recourse is had to the concen- 

 trated feeds. By the proper combination of these feeds, 

 fed in approximately definite quantities daily, these ends 

 can be attained. Here follows the detailed classification of 

 the concentrated feeds made on the basis of the protein they 

 contain : — 



Table IX. 



The feeds in Class I. furnish the largest amount of pro- 

 tein, those in Class II. next largest, and so on. Those 



