
A STUDY OF RATIONS FED TO MILCH COWS. Ts] 
PetRYaHERR DOL —-THSTS 36 -AND ) 38. 
This herd was studied February 11-22, and again March 
6-17, 1896. There were fourteen animals in each test, the 
cows being the same in both. ‘They consisted of nine grade 
Jerseys, two grade Holsteins, and three natives. ‘The aver- 
age weight of the herd was estimated at 750 pounds, and the 
average age six years. The ration fed in the first test was an 
exceptionally heavy one, and the nutritive ratio was very nearly 
that of the standard suggested by the Station. In order to study 
the effect of large quantities of protein, and a narrower nutritive 
ratio, the quantity of protein was increased from 2.34 pounds 
to 2.74 pounds per day per cow. In the second test the aver- 
age quantity of milk was increased four-tenths of a pound, 
and the quantity of butter seven-hundredths of a pound per 
day. By reference to the tables on pages 61 and 63 it will be 
seen that the fat was increased in the second test from two to 
five-tenths of a per cent. in the case of nearly every cow. 
Dairy Herd I.—Tests 36 and 38.—Calculated per head of 750 
pounds, live weight. 



















FEEDING STUFFS. ape eae ENT? al a 3 
K a Ag 5 a a 
2 | 4 Domest nes | 8 ee ies 
Kind. S ram oc yg ey = s2le 
BE | PSE Fe [ze] 
First Test. Jebs-ee | Uubss|piebss tbs: Cal. Tema Cts ork tents. 
Feb. 11 to Feb, 22,1896. 12 Days. : 
Wheat bran, SR ee Vio 
Grain, } Linseed meal, - | 1.6( | | | 
étc., 1 Corn meal, Coa eta Geel ie toot 4.38) 13150) 3.0 9-5) 7.7/1.8 
| Buff. gluten meal, 2.5} 
Hay, Ist quality, | 5.0 | 
Hays, |} Hay, 2d quality,- | 5.0 | 
Boca Stover: 3 Ae eae PO Fie iS hier 750) P5700 lL a7 1 30510 0.4 fuk 
l Pétatdes, “ =|, 2:0; } | pike. 
Total food, -  - - |28,6 |2.84) .53 |11.96) 28850 | 5.6) 23.0) 14.1)8.9 
Second Test. | r 
Mar.6to Mar.17,1596. 12 Days.) | 
( Wheat bran, elae4st | 
Grai | Linseed meal, - 1.0 | | | 
rai), 4 Corn meal, - =| 1.0 +|2.25| .61 | 4.09] 14400| 2.4/10.3| 8.7| 1.6 
np | Buff. gluten meal, 2.0 | | | | 
| Cotton seed meal, 2.1 J | 
Bey, Ist quality, | 4.0 | | | 
Hays, )j Hay, 2d quality,- 4.0 3 | deh 
etc., | Stover, F eo 49) IT | 6.57) 13550|13.5)I1.4| 5.4/6. 
Potatoes, 5 aA Sa at | | | Wane eee | oe 
Total food, - - - 26.9 (2.74 .72 10.66 97960 | 4,5) 21.7) 14.1) 7.6 

