G2 Report oF DEPARTMENT OF ANIMAL HUSBANDRY OF THE 
Under 2 is the average from 80 individual records for one month 
with rations having a fuel value considerably higher than 30,000 
Cal., and supplying considerably more than 15.5 lbs. of total 
digestible organic matter. 
TABLE B.—AVERAGES FROM RECORDS FOR ONE MONTH. 
A 2 
Average age of COWS, yearS.........6. ines wh 4 +t 5.6 
Average live wéicht per. cOwW, POUNGS... ow.e ce ve we ses 894 967 
A Versace UIMOnEDeUL JACTALION « «x tngs ea ee oes oe eae eee 6.2 4.5 
Average gain in live weight for month, pounds..... : 12 25 
Fuel value of ration per 1000 Ibs. live weight, Cal.... 28,855 33, 937 
Total digestible organic nutrients per 1000 Ibs. live 
W ELE ETO ITIS ne ave sakes alae cot a saline od geen ne fea F 14.6 17.0 
Digestible protein per 100 lbs. live weight, pounds.... pe wes 
NWurtritive ta BGA Sas 8 oe GAS ee Nn eee eee es 1:6.6 Lae 
Milk yield, average per day per cow, pounds........ 20.2 25.9 
Total solids in milk, average per day per cow, pounds 2.8 3.4 
Percentage ot tat in nike. . 2. oa sire te ee ae 4.4 4.0 
Digestible dry matter in food for one pound of milk 
solids produced, pounds..... Pt OAT CORB ee Ricks steers 4.6 4.8 
As the great mass of individual data is of no general interest, 
only the averages from different groupings are given. ‘The cost 
of production is usually stated. While the more nitrogenous 
foods, especially grain foods, are usually higher priced, the lib- 
eral use of such foods as alfalfa forage, oat-and-pea forage, 
clover hay, ete., has somewhat modified this relation. The cost 
relation is an uncertain and fluctuating one, of course, but the 
prices assumed for calculation would fairly represent the aver- 
age cost of foods supplying rations of the stated composition. 
Hay was rated at $10 per ton, and corn stover at $5, silage and 
roots were rated at $5, green fodders at $2. Corn meal, wheat 
middlings and brewers’ grains were rated at $20 per ton, wheat 
bran, malt sprouts and gluten feed at $18, ground oats,, gluten 
‘meal and new process linseed meal at $25, old process linseed 
meal at $27, cottonseed meal at $80, and ground flaxseed, but 
little used, $60 per ton. The average food costeef milk for all 
the records considered was 73 cents per 100 Ibs. 
