204. REPORT OF THE CHEMIST OF THE 
Taking only the last ten days of each period we have indications 
that with the cow under experiment that 3.8 pounds linseed meal 
and 3.5 pounds wheat bran are just about equivalent to eight 

: a 
‘ 2 ° 
E a Foop EATEN PER Day. ~ se 
i) qa |-—— ‘ co 3 p> 
S g ry PR d| gle {3s S Re 
PERIOD. roe het of © S/oSlqa37;/ 2.) 8 | we 
S| a] 8 | 38/33] os |/ Sg) 8 | oe 
of 2 ° = =| 0) L ae as 2m 
_2 @ 3 = Ai cules oe = ra fe} 
eS Sere Al ey a ee ee a fe 
Cents 
Deere et ae os, 988.1 71,74 1558°1-19.9° 18.0: 910:) 2.55.4 Vee ee 20.0 
| 
Bee as kt wrt Cae, hoes 930 | 70.3 -f-18-72} (2020 [3 eP: 8.8 TA oe 18.8 
Be rac Pons aie ees 958 | 59.7 | 15.3 | 20.0 ]..... SOc ieee 3:6. oe eee 15.1 
ia er tee ee es 967, 1.56:1 | 25:8 | 20.085 55 FeO Le. eee ee ee ee 19.8 
AM Rat gee PE nee CO WDD Bake a at Fag’ Fea Saas Saas tale Pe ee errs len trie t) 14.6 
DY RA Natok) eras 3S 985 | 89.2 |*283.3 | .... 6.0 4 Or eek BF fis oN Ds ts 24.0 


pounds corn meal for maintaining the milk yield, but we find that 
5.1 pounds less milk was required for one pound of butter. In 
period three, under palm-nut meal, there was a falling off in milk’ 
of 2.6 pounds per day. Under dry feed (starch waste) this 
decrease in milk was arrested, and the yield steadily increased to 
the close, indicating, + as has been previously shown-at this 
Station, the value of this dried by-product from _ the starch and 
glucose manufactories for milk production. 
The yield of milk per day, period two, under linseed meal feed, 
was almost the same as in period one, but 5.1 pounds less milk 
were required for a pound of butter. : 
The per cent of fat in the two butters was very nearly the same, 
85.27 per cent and 85.79 per cent. Whether the recovery of fat 
from the milk and cream was equally good for the two periods we 
cannot say, for unfortunately no analyses of milk were made at 
this time. The treatment of the milk and cream was always the 
same, but this trial can only be taken as indicating what has been - 
found in other trials heretofore, that linseed meal gives more 
butter than corn meal. Immediately following the trials already 
considered there were two periods, the first with alfalfa hay and 
the second with alfalfa, corn meal and wheat bran. With the 
change in feed the milk yield fell 3.1 pounds per day, and the 
addition of grain feed did little more than check the decrease at a 
considerable additional expense per day. 

* The hay fed in this period was fine quality of alfalfa. 
+Fourth Annual Report, page 23. 
