
A STUDY OF RATIONS FED TO MILCH COWS. Po 
Summary of daily rations fed, and daily milk and butter yield 
from nine herds with a wide as compared 
with a narrower ration. 























DAT RATION. PER! Hea eae COSTOR Foop.1o 
ey DaILy PRODUCE 
BP ee - —— 
hes % is wd em ae, 100 tbs. | 1 tb. 
a | tH oe Ao eS ane * 'S 3 Milk. | Butter. 
Bie ees 35 “ 4 8 2 3 ~ ; es | 
ee £4 |Sldg/az/2/2)/o/= | #] 2 [sles 
eo UT RTS Al ee a Me Re em we | Ra |S a ee 
Sen ent ee a Gees eee el a 
Sa eie. hie 2 | 6 [si sis 
bo oe Be 14) (4 
Lbs. Lbs.| Cal. | x: | Cts. | Cts. | Lbs.| Lbs.| @ |Ct} Ct |Ct 
A aot Bos ( |18| 2.15|32750| 7.3| 26.6] 14.3] 18.1] 1.10] 1.47/79] 24 |13 
{ Nar. ration, q [21] 2.39/29400] 5.7) 21.7| 9.8) 18.9] 1.12} 1.15|52| 19 | 9 
B Bescon, 750 } 20| 1.49|25800] 8.5| 18.6) 9.5) 18.1} .QO} 1.00/53) 21 {II 
Nar. ration, j 23| 2.01|/24700| 5.7| 18.3] 9.0|17.9] .92] 1.03/50) 20 |10 
C ieiica l 725 | 22| 1.38/21150| 7.3| 19.4| 12.5) 13.7] .67| 1.41/91] 29 |19 
Nar. ration, j 25| I1.80|/22400]| §.7| 17.8) 9.9/13.6| .71)] 1.30/73] 25 |14 
D ee ion | oa 27| 1.29,21800] 8.0] 14.1| 7.0| 14.0] .79)1I-01|50) 18] 9 
Nar. ration, § } [29] 2.09/25350] 5.5|15.1| 6.9/13.7| .76/ 1.10/50] 20) 9 
E ee dans 4504 28] 1.63|30650] 9.2| 18.4] 10.5] 17.9| I.02| 1.03]59] 18 |Io 
Nar. ration, ( 130] 1.81/24950] 6.4) 15.9] 7.1|18.3|1-07} .87/39) 15| 7 
F pee B00 } 31| 1.32/25450| 9.3|15.1] 6.8}17.8)/ 1.01) .85)38) 15) 7 
Nar. ration, 33| 2.23/26850) 5.5/18.0| 7.0/18.5|1.04| .97/38) 17] 7 
G Ist ration, ) 775 | 32| 2.14/26750| 5.7| 16.7} 7.6|17.7| -98) -94/43| 17] 8 
2d ration, j 34| 2.16|26200] 5.5| 16.2] 5.6/15.4} .90/1.05/36| 18 | 6 
UW Wide ration, } 775 | 35| I.42|26600| 9.0] 17.3] 7.0/16.7| .84/ 1.04/42] 21 | 8 
Nar. ration, ) 37| 2.27/25050] 4.9| 17.4; 5.1|17-4| -90] 1.00]29| 19 | 6 
I Ist ration, | 36| 2.34/28850| 5.6| 23.0] 8.9| 17.0] 1.02] 1.35/52) 23 | 9 
2d ration, 75 38| 2.74/27950] 4.5) 21.7; 7.0/17.4) 1.10) 1.25/44| 20) 7 
Average 9 tests 
with wide ra-+/750 | —|1.68/26650| 7.5) 18.6] 9.4/16.8} .93/ 1.12/56] 21 j10 
tions, - - | 
Average 9g tests 
with narrower + /750_ | -- | 2.17)/25900|5.6/ 18.0, 7.6} 16.8) .g5/ 1.08)46} 19 8 
rations, - = 
Standard sug- | 
Eesiecepyethe -|)—) | — | 2:50/31000) 5.0), = po 
Station, t - | 







* Total cost less value of obtainable manure. 
+ Assuming butter to contain 82.4 per cent. butter-fat and 96.3 per cent. of the fat in 
the whole milk to be saved in the butter. 
t This is nominally for 10co pounds live weight, but, actually, a smaller cow in full 
flow of milk needs more than a large cow giving less milk. It may, therefore, apply 
to cows no larger than some of those in the above tests. 
THE EFFECT OF NARROW RATIONS ON MILK FLOW AND BUTTER 
. WEEE: 
At the time of the second test the cows were, in each case, 
one to four weeks further along in the period of lactation, and 
would, in consequence, naturally have fallen off in milk flow 
