32 Report’ OF DEPARTMENT OF ANIMAL HUSBANDRY OF THD 
A record of the amount and composition of the food, milk and 
excreta was kept for 74 days. 
(2) Cow 10, a grade Jersey weighing about 750 pounds, fresh 
in milk at first and not pregnant, was fed a mixture of normal 
feeding stuffs for 68 days, the fat in which was varied from a 
proportion fully as large as is ever found in practice to a quan- 
tity somewhat excessive, the daily supply of digestible matter 
remaining quite constant. <A record of the amount and com- 
position of the food, milk and excreta was kept for 54 days. 
(3) Cow 2, a full blood Jersey, of very large productive 
capacity and in full milk flow, weighing about 780 pounds, was 
fed the usual herd ration. The amount of food was accurately 
weighed for 20 days and the milk and excreta were weighed and 
analyzed for the last four. 
THE FOODS. 
The feeding stuffs used in these experiments, some of them 
normal and some having been submitted to a petroleum extrac- 
tion, had the following composition: 
COMPOSITION OF FEEDING STUFFS, 
Lab. Water. Ash. Nitro- Pro- crunernbaie 
No. ” gen. tein.*. extract.) 
Per et, Ferict: Per-et. . Per ct. Per ct. 
7i2 Mixed hay, -Oow 10...6.6.+. 24:67: 6136 90L.62™10012 1736 
717 Alfalfa hay, Cows 2.and. 12.. 16.66- 6.92 2.39° 24794 1.44 
WL Oat siranw. soows 120 i salt. 2 1001S. Oe 2— 0583" Se 1.44 
2138 Corn menlyCow 10 Mois ote we 22.12 Liege) deed 2:27 
feo Corn meal, Cow 10. .....6. «6 20726, 1.55 ~ 4.852) aves 325% 
720 Corn meal, extracted, Cowl12 12.36. 1.16 «1:56 | 9.975 Os | 
740 Corn meal, extracted, Cowi12 11.65 1.14 1503) “O08 0.37 
Tle 4100 Meal -Cow: IO) il. «vieise 12/67) Ord) AGB AS i es | 
110. Rice meal, Cow .12.....c.ees 11.87 -0:84> “1-8 eas 0.09 
ter erice meal, How. 12:4. keene 13 45° 5:0-60. 44.138 - Gene 0.31 
O21. Mee meal, Cow I2arleee ess 12°79. 0.88 1350) ae 0.08 
4121 . Oats, extracted, Cow 12..... L018. 8.06) 2.20 ieee 0.79 
739 Oats, extracted, Cow 12..... Recut eee S ae 12: OMe a 2 
fo. Wheat prin: “Cows 2.6 oo eee 11.21.) dv20.49 22445 Tee 4.33 
446 Malt sprouts; "Cow 2. ic... 10.46 0.38. 4.22 “25732 1. 6¢ 
714 Linseed meal, Cow 10...... 12665) 4.75 5796 32.98 6.71 
737 Linseed meal, Cow 10...... 9.48 4.78 5.84 32.12 fpeere 
4147. Linseed meal, Cow 2.2.2... 9.52 4.64 5:85 32°17 6.94 
715 Flaxseed, ground, Cow 10... 9.75 2.91 3.384 18:37 37.29 
738 Flaxseed, ground, Cow 10... 4.04 3.00 3.42 18.81 388.84 
722 Wheat gluten, Cow 12...... 7.16 0.83 13.08 75:54 OTe 
723 Wheat gluten, Cow 12...... 9.10 0.48 12.64 “71.01 Oe 
742 Wheat gluten, Cow 12...... 6.38 0.72 12°80 ° 72.96 0.94 
Sugar beetst 
*With hay, oat straw and corn meal, protein = N x 6 25; with rice meal, oats and malt sprouts, 
protein = N x6; with wheat, bran and wheat gluten, protein = N x 5.7; with linseed meal and 
ground flaxseed, protein =-N x 5.5. 
+ Daily analyses of sugar beets were made. 
