54 REPORT OF DEPARTMENT OF ANIMAL HUSBANDRY OF THR 
Heat values.—Heat or energy values were determined for three 
periods with Cow 12 and for one period with Cow 10. The 
detailed data are voluminous and are not given in this connec- 
tion. Great care has been given to the various calculations and 
confidence may be placed in the mathematical accuracy of the 
figures presented herewith. 
The average heat values found for one gram of dry matter in 
the feeding stuffs are as follows: | 
HEAT VALUES OF FEEDING STUFFS. 
Calories per gram, 
Kind of material. dry matter. 
MESO 713 Gees oa sranin sgaye b 6 nied 5. where ietaless egeiete-e jnie te wralaishate queen 
ATER Wa cay OR. a A58 tear: fouls os ele btu Mia abies chee «eis ose octets See 
OAtrSILAW Wicd Aide tives ee wet ie atee Mieke ic pete Se hek 5a 
Corn meal (8 samples).......ec0- piel ae oc atbpeeibe ne . sata DT 
Oats. (2 ssa ple) i. Ps «nse utele we ete tece re alels alelevecteteacate 4.505 
Rice meal (4 ‘samplesy. sss clee ss cieet ele PPP rer rrr ks 
Linseed meal........ é ib bie wae dic eho preteen da Lid i iste wheter 
Hlaxséed meali..s ce ees na hs » pdeis oleic oy, «a sum siete taste «ial aera 
Wheat gluten (2 samples)...... p w/disie dViete 0 ore atiats elemeouen ines 
Sugar. beets! (82: samples) ss. Tivk cewle cab cclete eRe g ecto k SeeRr Eee 
The quantities of nutrients, total, digestible and otherwise, 
fed to the two cows during several periods were as given below: 
NUTRIENTS CONSUMED BY THE COWS, 
Total Total Total 
. Total dry Dry digestible digestible carboby- 
ANIMAL AND PERIODS. matter matter in dry organic drates 
consumed, the feces, matter, matter. digested. 
Grams, Grams, Grams, Grams. Grams. 
Cow 12. 
1st Period, Jan. 30 to Feb. 
6, 7 days..2.0..2..%.2 1) 90985.1  27698.6 63286.5 61699°8 Saoaone 
2d Period, Feb. 19 to 26, 
A MCCLURE Air ok oe ons Sacer seers 92657.8 28528.1 64129.7 623824.5 55255:1 
3d Period, Mar. 8 to 16, 8 
GAYS we cspevccccccccee L0D844.1 34509.2 708384.9 68721.1) 62698°9 
Cow 10. 
Feb. 4 to 14, 10 days.... 102388.5 28023.3 74865.2 71414.1 60445.7 
The above quantities combined with the various calorimetric 
determinations form the main data from which the energy values 
and relations are calculated. It should be stated by way of 
explanation that the loss of cmergy from the escape of gases, 
chiefly methane (CH,), is based upon the results of numerous 
