( 155 ) 
TABLE VL 
N°. R.M.W. Numbers. ) of Fat in the Milk. 
Yield of 
of the =. 
Milk Average Average. Average | Average ‚Aver.28 Dec. 
cow. 17-23 Dee. on 28 Dec.3-13 Jan 47-20 Jar. 17— 23 Dec.) 20 Jan. 
Ld 
oe ESE (et 
Et MS ( WS IS | NE 3.37 3.34 
2 ;+#5b.| 28 j ae | 269 | 4.3 | 442 | 446 
Seen tr B: ts 20 3.33 
; 
By changing from molasses to sugar another rise occurred with 
both cows; with No. 1 to the amount of 0.8, with No. 3 to 
0.5, consequently the rise in regard to the period of 17—23 Dec. 
amounted to 3.25 and 1.35. Taking into consideration that the 
R.M.W.-number of the controlling-cow came down to the average of 
24.3 in the latter period, therefore to the amount of 2.5 the influence 
of the feeding with sugar appears very clearly; for again it may 
be taken here for granted that, with No. 1 and 3, a decrease would 
have had to be recorded as well, if they had not received sugar, 
which can be easily conjectured, because at the end of the lactation- 
period a decrease usually occurs in the R.M.W.-number. 
Taking for granted, that with Nes. 1 and 3 a decrease, amounting 
to that of No. 2, namely of 2.5 would have taken place without 
sugar-feeding, then the rise caused by sugar, amounted with No. 1 
and 3, resp. to 5.75 and 385. 
Of the results, which are recorded in Table V concerning the 
R.M.W.-numbers, fig. IV gives a graphic representation. The dates 
are put down on the X-axis, the R.M.W.-numbers on the Y-axis. 
It should here be observed, that with cattle kept in stables, such 
a considerable influence cannot be expected, because in the stables 
the R.M.W.-numbers are higher, even without artificial means, than 
in the autumn when the cattle are grazing in meadow-land. Compare 
figures of Table V with those of Table I. 
From the resulis of the two last series of experiments the conclusion 
may therefore be drawn, that sugar exercises a considerable influence 
on the increase of the volatile fatty acids in milkfat. The question, 
as to how this process takes place, can not as yet be explained. -Inves- 
tigations into this matter are being made by me at present. 
Dr. J. E. TULLEKEN, assistant at the Experiment-station, has 
assisted me in carrying out the above-mentioned experiments, and 
