Feeding Dairy Cattle 



realized that the beneficial effects of farm manure persist 

 much longer than two years, but owing to the difficulties of 

 checking records for a longer period, the compensation is not 

 extended over a greater time. The principle of the English 

 law, as set forth, should be drafted into every lease drawn 

 between landlord and tenant in this country." 



In accordance with these principles the following table 

 has been computed: 



MANURIAL VALUES PER TON 

 Cost Ma 

 Feed per ton 



Corn meal $31.00 



Hominy feed 30.00 



Gluten feed 31.00 



Flour wheat middlings 30.00 



Wheat bran 24.00 



Wheat mixed feed 25.00 



Ground oats 33.00 



Ground barley 35.00 



Malt sprouts 28.00 



Brewers' grains, dried 29.00 



Cottonseed meal, choice 38.00 



Linseed oil meal, old process . . 35.00 



Beet pulp, dried 28.00 



Distillers' grains, dried 31.00 



The manurial values here given are those computed on 

 the basis that a dairy cow returns in the urine and manure 

 50 per cent, of the nitrogen and 75 per cent, of the phosphoric 

 acid and potash in the feed as fed. The value has been cir- 

 culated by multiplying the pounds of nitrogen by 18 cents, 

 the phosphoric acid by 4.5 cents and the potash by 5 cents. 



Objection may be made that no such values are ever 

 recovered in ordinary practice. Pippin in the Cornell Read- 

 ing Course for the Farm, Lesson 127, uses percentages less 

 than these. Whatever percentages are used the principle 

 is the same and the amounts recovered are large and im- 

 portant. Attention is therefore called again to the first 

 table, which says on good authority that 75. s per cent, of the 

 nitrogen and 89.7 per cent, of the phosphoric acid and potash 

 are returned by a dairy cow, and then consider that the 

 percentages, 50 for nitrogen and 75 for phosphoric acid and 

 potash, are used from the law. All men know how con- 

 servative are the figures written into law. Again, we have 

 used low prices as compared with the present prices for 

 nitrogen, phosphoric acid and potash. 



Concerning the care of the manure and urine, again it 

 must be emphasized that more than half of the manurial 

 value of each feed is in the nitrogen. Practically all of the 

 nitrogen of the feed is returned in the urine. Therefore all 

 the urine must be absorbed and the manure so kept that no 



Page Eighteen 



