



37 
By referring to Table III, a and 6, we note the average 
live weights for like periods before calving, as below: 
Av. live wt. during each period of 16 days: Ibs. 
Gain. Gain. Gain, 
‘Cows under uniform feed 920 947 (27) 961 (14) 977 (16) 
f ‘* changed feed 825 855 (80) 879 (24) 896 (17) 
These figures can only be interpreted to mean that suffi- 
ciency of food, rather than any peculiarity of the ration, is 
the principal requirement during the latter stages of gesta- 
tion, and that the growth of the foetus must be satisfied 
before the increase of live weight can be interpreted as gain 
in the cow. _ 
The variations in the figures must come partly from the 
individuality of the cows: referring to Table IIT, we note 
that while Ann drank 99 lbs. of water daily on the average, 
Kmm drank but 51 lbs., Jem 72 lIbs., and Meg 63 Ibs. 
During the first period, on hay and meal feeding, all the 
cows consumed 4 Ibs. of meal each, daily, but of the hay 
Ann consumed 20.3 Ibs., Emm 22 Ibs., Jem 21.3 lbs. and 
Meg 21.1 lbs., or practically like amounts, | 
Under the hay and meal feeding we note quite a close re- 
lationship between live weight, albuminoid consumed and 
milk yield; under changed feed the relationship is not as 
well marked, as the influence of the preceding food offers 
a disturbing factor. 
An examination of Table IV, a and b, shows that there 
was quite a variation in the amount of albuminoid con- 
sumed during each period, the excessive amount during 
Periods III and LX being very noticeable. During the first 
of these periods, before calving, the two cows gained 
scarcely at all in live weight, and fell off in milk far less 
than the increase of time from calving would lead one to 
expect; during Period IX, after calving, the cows increased 
slightly in weight, and maintained an even milk flow. Ags 
compared with the preceding and following periods, Periods 
If and IX indicate a large gain in milk, which must be 
credited to the influence of the cotton seed meal. Tt will be 
noticed that the feeding of the cotton seed was accompanied 
by an increased hay consumption, and an increased amount 
of water drank. ' 
It will be further noted that there seems to’ be no eS- 
pecial relation between the amount of water drank and the 
yield of milk. 
The effect of the meal ration is scarcely perceptible, ag 
compared with the hay ration, according to the data, but 
HS experiment is scarcely satisfactory in this interpretation: 
ut, 
| The two cows: 
Period VII. Gaining ration... , 22.1 Ibs. hay 41bs. meal. 19 Ibs, milk, 
es X. Maintenance ration.26.3 “ « USS seen oe 
