28 Bulletin 81 



meals, and a ration well adapted to milk making is obtained in place of one 



ill fitted to that end. Moreover 20 tons of silage remain on hand as reserve 



stock for summer feeding. The final ration for 4,000 days and the average 



ration for a single 1,000 pound cow are as follows : 



Four thousand days One day- 

 Fodders and feeds Dry Digest- Digest- Dry Digest- Digest- 

 matter ible ible matter ible ible 



protein rarbohy- protein carbohy- 



Weight drates i Weight . drates i 



tons lbs lbs lbs lbs lbs lbs lbs 



Clover hay 15 25,400 2,100 12,600 7* 6.35 0.53 3.15 



Silage 60 31,000 1,400 21,200 30 7.90 0.35 5.30 



Oat straw 13*24,500 330 12,400 6| 6.13 0.08 3.10 



Bran 3J 6,200 840 3,200 If 1.55 0.21 0.80 



Cottonseed meal 2| 5,000 2,200 2,200 If 1.25 0.55 0.55 



Linseed meal, N. P. 2 3,600 1,300 1,700 1 0.90 0.33 0.43 



Chicago gluten meal 2f 4,900 1,760 2,600 If 1.23 0.44 0.65 



101,200 9,930 55,900 25.31 2.49 13.98 

 Wolff- Lehmann ( medi- 

 um) standard 116,000 10,000 56,400 29.0 2.5 14.1 



How about fertilizing ingredients ? Have not the sales of hay and oats 

 seriously depleted the resources of plant food ? A trial balance may be 

 struck here between sales and purchases. 



Nitrogen Phosphoric acid Potash 



lbs lbs lbs 



Sales. 25 tons timothy hay 470 265 450 



79 60 



344 510 



Total fertilizing ingredients bought 1333 489 493 



The purchases bring onto the farm 682 pounds more nitrogen and 145 

 pounds more phosphoric acid than the sales remove, and practically replace 

 the potash which is sold. The added manurial value, if rated at market 

 prices for the same ingredients in commercial fertilizers, is worth $101.34. 

 All of this will not become available to future plant growth, but it is clear 

 that from the standpoint of plant food the operation promises success. 



The final outcome of the sale of timothy hay and oats and purchase of 

 clover hay and byproducts in this case is more food, more milk, more butter, 



i Ether extract x 2.25 added. See foot note page 20. 



