54 



5.' 6. 



200 lbs. distillers' grains, loo lbs. malt sprouts, 



150 lbs. flour middlings, 125 lbs. corn or hominy meal, 



Mix and feed 7 lbs, (8-9 qts.) daily .^ 125 lbs. gluten feed. 



7 lbs. contains : Mix and feed 7 lbs. (7 qts.) daily. 



1.4 lbs. digestible protein, 7 lbs. contains : 



5.2 lbs. digestible organic matter. 1.12 lbs. digestible protein. 



Ration costs 9.6 cents. 5.19 lbs. digestible organic matter, 



I lb. digestible protein costs 3.8 cents. Ration costs 8.7 cents. 

 I lb. digestible organic matter costs i lb. digestible protein costs 4.1 cents. 

 1.9 cents. I lb. digestible organic matter costs 



1.7 cents. 



7. 8. 



150 lbs. brewers' grains, 2co lbs. brewers" grains, 



100 lbs. corn or hominy meal, ico lbs. corn meal, 



100 lbs. gluten feed. 50 lbs. cottonseed meal. 



Mix and feed 7 lbs. (8 qts.^ daily. Mix and feed 7 lbs. (9 qts.) daily, 



7 lbs. contains : 7 lbs. contains : 



1. 14 lbs. digestible protein, 1.26 lbs. digestible protein, 



4.7 lbs. digestible organic matter. 4.40 lbs. digestible organic matter. 



Ration costs 8.8 cents. Ration costs 8.9 cents. 

 I lb. digestible protein costs 4.4 cents. i lb. digestible protein costs 4.2 cents. 



I lb. digestible organic matter costs i lb. digestible organic matter costs 

 1.9 cents. 1.9 cents. 



By a proprietary mixture is meant a combination of 

 Proprietary several grains or by-products offered as a complete 

 Grain Rations, or ready grain ration for dairy stock. The require- 

 ments of a ready ration may be outlined as follows: 



1 . It must be bulky, one pound measuring from one to one and 

 two-tenths quarts. Heavy rations are likely to cause indigestion. 



2. It must be palatable and free from mould and rancidity. 



3. It should contain 16 to 18 pounds of digestible protein in 100. 

 The total protein in such a mixture should be at least 70 per cent 

 digestible, and better 80 to 85 per cent. If the total protein was 

 only 70 per cent digestible, it would be necessary to supply 24 per 

 cent in the ration (70 per cent of 24 = 16.8) ; if 80 per cent diges- 

 tible, 21 per cent would be required (80 x 21 = 16.8). 



4. It should contain approximately 70 pounds of digestible organic 

 nutrients in 100, and not over 9 per cent of total fiber. The fiber 

 should not be derived from corn cobs or similar material. 



1. Another ration may consist of 150 lbs. distillers' grains, 50 lbs. cottonseed and 50 lbs. 

 bran. Mix and feed 7 lbs.' (10 qts.) daily. 



2. Six pounds of this mixture would make quite a satisfactory daily ration. 



