PRINCIPLES OF STOCK FEEDING 



07 



the total amount of digestible fat in the 

 ration by 2.25, since fat contains 2.25 

 times as much energy or heat as carbo- 

 hydrates. The resulting 1 quantity is 

 then added to the total amount of 

 digestible carbohydrates and the sum 

 divided by the total amount of digestible 

 protein. 



Timothy hay for example contains 2.9 

 per cent of digestible protein, 43.7 per 



This is a wide ratio and is character- 

 istic of many of the coarse feeds of the 

 farm like the grasses and straws. The 

 grains like corn, barley and oats and the 

 leguminous hays have medium nutritive 

 ratios, while such by-products as distil- 

 ler's grains, gluten feeds, cottonseed 

 meal and linseed meal have narrow nu- 

 tritive ratios, the nutritive ratio of lin- 

 seed meal being as narrow as 1:1.7. 



Fig. 42 VARIOUS KINDS of forks and slings for unloading hay 



Under general farm conditions the sling Fig. E is most satisfactory for unloading. 



cent of digestible carbohydrates, 1.4 per 

 cent of digestible fat. In calculat- 

 ing the nutritive ratio of this feeding 

 stuff we first multiply the fat 1.4 by 

 2.25, which equals 3.15. This amount 

 added to the digestible carbohydrates 

 43.7 gives us 46.9 and 46.9 divided by 

 2.9, the digestible protein, gives us 16.1. 

 The nutritive ratio of timothy hay, 

 therefore, is stated as 1 :16.1. 



Feeding standards only approximately 

 correct — The amounts of nutrients rec- 

 ommended in the table of feeding stand- 

 ards are intended to be sufficient to 

 meet the food requirements of maxi- 

 mum production. The table, however, 

 must not be taken as an absolute guide 

 for compounding rations for all ani- 

 mal.- at all times. Such a table cannot 

 be constructed. 



