Novee}.. 41 
Daily ranges during portions of periods. 
I. I]. 
“Jan. ~ Jan. Jan. 31to Feb. 
z 17-20. 21-24. Feb. 3. 4-7. 
Av. weight of cow...:...... 726. 728. T45.. TAT. 
“ weight of food consumed 31.2 34.6 (78.0 78.0 
“ weight of water drunk... , 41.4 48.3 5.4 3.8 
“ weight of excrement.... 51.3 51.1 49.4 47.1 
Beewereitcot milks: 0. .;..  LT.5 17.4 20.3 19.5 
IV, V 
og Wie NEP RN EP. =a oe 
: Feb. Feb. Mar. © Mar. 
. 22-25. 26-29. 6-9. 10-13. 
uve WOIOlit- Of COW.......~:. TE: 718. 726. 115. 
“ weight of food consume 25.3 26.3 62.2 61.4 
“ weight of water drunk... 62.3 62.6 28.1 382.6 
“* weight of excrement.... 54.6 54.2 54.2 63.3 
peewermnt.of milk... ..'... ---18.0 17.8 17.8 15.9 
The correspondences between the second and third four days of 
each period seem as close as could be expected, and seem to indi- 
eate that our method of taking four day periods is a reliable one. 
It may be of interest to note the individual variations between the ~ 
cows, and we, therefore, present some data which cover the four 
days of the periods (except Period 3, one day) during which the ex- 
crement was collected separately. 
[. rs Til. Ve Vis 
Daily average Jem. Meg. Jem. Meg. Jem. Meg. Jem. Meg. Jem. Meg. 
Weight of cow, Ibs....... 704 752 715 778 698 158 690 745 689 Gye 
Food consumed, lbs..... 38.0 31.3 78,0. “78.0 # 24.8 = 25.9- 26.7 °26.0 --61.0°. 6138 
Water drunk, lbs........ 51.2 45.4 4.3 SIS@ Dita. 240e2 ae 62.9>—- 02.47) Shon roach 
BUT LO Stes secs coe ia olk's @ 45.0 34.4. $4.0. 33.% 29.9. 29.7 45.4. 45:5: 41.5 — 43.4 
ME TUENO SLORY Nige-s.c sfo.s.urs ec oe NOT ie 12 ee a aes be LO Dee LED 9.1 8. 19.1 wae 
4 
LOG) Seg | Sey ee 20.0 14.8 21.6 17.5 22.6 17.8 19.5 16.2 16.4 
Calculating these tables upon the dry matter received and passed, 
we have: . 
Daily dry 
Food consumed, lbs......... 193552 179. A178 017-3) -— 2021) « 20.83 © 20:34 21830 16 0seS0 
Dung passed, Ibs............ Oe 5.6e 4-5. De 85.2 )> Ste 6.2 9.1 9.2 ayer See: 
Milk yielded, Ibs........ ... Sete LARA A La Oy 0B, 4 ee BaD Le Ol cer kee. cet 
Per cent of dry dung to dry 
DOG Mest oie. PA Se ne 5.9 381.7 31.8 380.0 28.3 29.8 448 50.2 46.9 43.3 
Per cent of dry food to 
weight of cow............ 2.63 2.24 2.42 2.22 2.88 2.76 2.94 2.45 2.82 . 2.37 
These figures justify the belief that the two cows were well se- 
lected for the experiment, and a study of the differences must give 
additional confidence to our results based upon the averages of the 
BWOoS 
We may now inquire as to the digestibility of these various ra- 
tions, the amount of grain fed being uniform during each period, 
[Assem. Doc. No. 33.] 6 
