New YorK AGRICULTURAL EXrERIMENT STATION. Gar 
THE RATIONS. 
Cow 12.—The daily ration of this animal as established at first 
was as follows: 
RATION OF Cow 12. 
MEIER UY. cc's eles bec oce e Ss. hice aAnedl.. vss«6 guises Od LDS. 
iO Sgt 0 i ae SRDS Oatse (Oxracted)) Ae wee ek 3 eet ty <b 
PRAT GCOTR Oy vega tice sss oc 27 I\lbs. Corn meal (extracted)...... ae. ADS; 
ECE TULCT ~. ue so ses es see 11% lbs. 
After three weeks, including one week of preliminary feeding, 
the wheat gluten was diminished one ounce per day and the rice 
meal was increased by alike amount. This change was con- 
tinued until no wheat gluten was fed. After seven days of 
absence of wheat gluten from the ration it was again intro- 
duced, one ounce the first day, two ounces the second and so on, 
the rice -meal being diminished to the same extent until the 
original ration was reached. The feeding was then continued 
on this basis. It should be said that a uniform addition of 1 
pound of rice meal was made to the ration at the end of the 
first month’s feeding. | 
This method of varying the ration allowed a very gradual 
change in the protein supply in both directions with no lessen- 
ing of the supply of digestible organic matter, thus making it 
possible to study the relation of protein to milk secretion with- 
out the disturbing influence of sudden changes in the character 
of the ration or of a deficiency of carbohydrates. 
Cow 10.—The basal ration of this cow consisted wholly of 
normal foods and was designed to supply a generous amount of 
vegetable oils. 
RATION OF Cow 10. 
Diixed DAY - ..sé« aca ates) 36a tS Lise ANCeCO PONCE. of sc ae ceraea dele 2 Ibs. 
BIE HCOUS 2s picc'c cs 00 ce ciel Ailpses Ground flaxseed”, : scpeecee « 1 Ib. 
CT er 4 lbs. 
The ether extract in this ration at first was about .8 Ib. per 
day and it was maintained at this amount for about one month 
when it was gradually increased by a substitution of ground 
flaxseed for a like quantity of linseed meal at the rate of 4 lb. 
per day until the ether extract ingested daily was 1.4 lbs. 
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