8 STORRS AGRICULTURAL EXPERIMENT STATION 
NET AVAILABLE ENERGY IN MEAL AND HAY. 
On December 12, Mina, a grade Jersey cow, five years old, 
dry and farrow, was placed on an exclusive hay ration. On 
the same date Ethel, a grade Jersey cow, five years old, dry 
and farrow, was placed on an exclusive corn meal ration. 
Mina weighed 800 pounds and Ethel 730 pounds. Both cows 
were weighed daily and the ration adjusted to maintain the 
initial weight. Stable temperatures, temperature and amount 
of water drank were taken and recorded daily. The cows 
received no exercise. The feeding trial continued until April 
23, or a period of 130 days. The last week of the trial the 
feces were collected and analyzed. 
TABLE I. 
Amount of hay versus meal required for maintenance. 
Experiment I. 





















MINA. ETHEL. 
ian tas 
= a 4 “4 2 4 2 3 
DaTE. om ° i & % 4 = E s a 
SPE ae Aes o | 8 ge 
as z) o's ‘ri 3 o & Os 
ep) E| 82) sg | 8 |) S| s 184 
44 a ee 3 > 5% a | 
< E = < Ee 
ie Lbs. Lbs. Lbs. Lbs. Lbs Lbs. 
December 9-12.....| — | — | 800 — — 130. =F 
Dec. 18—Jan. 6......; — | — | —|— 15 — 6 
January 7-13...2.--| 85°) 42 |. 792 |) 30.4 14 651 eZee 
January 14-21......| 36 | 44 | 800 | 34. 14 C5 halons 6 
February 1-7.......| 34 | 40 | 784 | 29. 14 675 9. 8356 
February 20—-26..... 350 | 43-4 788 |, 30. 14 675 8.4 | 6 
March 4-13........ 386 | 47 | 794 | 29.4 14 675 9.6 | 6 
March 25—April 2...| 38 | 51 | 791 | 29.4 15 659 9.35.6 
FOTOS ire on 41 | 53 |'805 | 80.4 15 653’ |) 1OS7 sens 
lh 1-223 2 eee AZAD! “bE DO0t tos 15 647 6 232156 
Average ou. 74% 37 | 46 | 793 | 30.4 | 14.3 || 661 9.27166 

