A STUDY OF RATIONS FED TO MILCH COWS. | SI 
feeds, like cotton seed, gluten or linseed meals, were usually 
substituted in the second test for a part of the corn and wheat 
feeds used in the first test. The total cost of the rations and 
the net cost, after deducting the estimated manurial value, 
is shown in the summary table. In getting the net cost, 
the manurial value is estimated by assuming that 85 per cent. 
of the nitrogen, phosphoric acid and potash of the feeding 
stuffs are obtainable in the manure, and that they have the 
same value as in ordinary commercial fertilizers. The follow- 
ing tables give the costs of food to produce 100 pounds of milk 
and one pound of butter. 
Cost of food to produce roo pounds of milk. 
= —t+ 








ToTaL Cost oF Net Cost or 
FEED. FEED.* 
HERD. YEAR, 
Wide Narrower Wide Narrower 
Ration. Ration. Ration. Ration. 
Dollars. | Dollars. | Dollars. Pee 
AS 2 E 1893-4 147 15 -79 Aw: 
B, . - 1893-4 1.00 1.03 53 .50 
ot . 4 1893-4 1.41 1.30 .gI -73 
D, - - 1894-5 1.01 TLO .50 .50 
E, a - 1894-5 1.03 .87 59 -39 
F, - = 1894-5 85 97 .38 .38 
G, ate 1894-5 | 1.05 -94 -43 .36 
a - - 1895-6 1.04 1.00 tA2 .29 
i = = 1895-6 1.35: 525 752 -44 
Average, - — 1.13 1.07 56 46 



* Total cost less that of obtainable manure. 
Cost of food to produce one pound of butter. 








ToTaL Cost oF Net Cost oF 
FEED. FEED.* 
HERD. YEAR. - 
Wide Narrower| Wide | Narrower 
Ration. Ration. Ration. | Ration. 
Dollars. | Dollars. | Dollars. | Dollars. 
A, - - 1893-4 24 .19 13 | .09 
5, - - 1893-4 Ae) .20 me th if ea 9 9. 
ce - - 1893-4 .29 £25 EL Op ee kd 
13 - - 1894-5 epee, 520 0g | -09 
ie ‘ - 1894-5 .18 15 .10 [07 
F, - - 1894-5 at5 a7 .O7 .O7 
G - - 1894-5 .18 .18 .08 .06 
cp eee 1895-6 | .21 19 08 | ..06 
he oe - - 1895-6 723 .20 .09 wiley, 
Average, - - = 21 Ld 10 .08 



* Total cost less that of obtainable manure. 
