May 5 ,1923 
Fatty Acids in Butter Fat 
383 
Tabi,B XXII .—Analysis of oils and fats fed 
Saponification number (j) .(mgm.) 
Acid number (a). .fmgm.J 
Ether number (^).... (mgm.) 
lodin number. 
Equivalent in oleic acid_(per cent). 
Total fatty acids {T) (1.00—0.00022594 e) 
.(per cent). 
Neutralization number(n)j/T (mgm.). 
Free fatty acids {A) ajn ....(p^ cent). 
Soluble fatty acids (S) (T—I) (per cent). 
Neutralization number.(mgm.). 
Insoluble fatty acids (/) by alcoholic 
potash.(per cent). 
Neutralization number.(mgm.). 
Stearic acid by crystallization 
. (per cent). 
Glycerol (0.00054703 e) .(per cent). 
Refractive index (Abbe) 25° C. 
Refractive index (Abbe) 40° C. 
Colorimeter (Lovibond) >^-inch cell... 
Viscosity (Redwood) 70® F. 
Coconut fat. 
Peanut oil 
Com oil. 
Soybean oil. 
256.600 
.092 
256.508 
9-447 
10.508 
189.83s 
•S 3 * 
189.303 
94 - 7 SI 
190.761 
•347 
190.414 
123.319 
* 9*-337 
*•594 
189.743 
131.180 
94.204 
272.388 
.034 
9-372 
341.539 
95 - 7*3 
198.317 
.368 
None. 
95.698 
199-336 
.174 
None. 
95-713 
200.952 
1.291 
None. 
84.832 
264.748 
96.005 
O2II.577 
96.026 
®219.463 
95.953 
<1219.425 
2-755 
14.032 
None. 
10.355 
•523 
10.416 
.334 
10.380 
1-4550 
1.4491 
/ *’•57 
1 ‘’•03 
8.691 
1.4689 
1.4632 
ft 1.05 
^.45 
11-554 
1.4724 
1.4671 
02.70 
C.30 
10.203 
1.4737 
1.4677 
^16.lO 
C3.90 
9-730 
« Exceeds the neutralization number of the total fatty acids due to decomposition difficult to control 
in such unsaturated products. 
b Yellow. 
c Orange. 
The composition of the milk (Table XX) produced by the control herd 
A on hay and grain was fairly constant during the several periods of the 
experiment (foin* months), as was also the yield except in the case of 
Colantha in the second period when there was a noticeable decrease due 
to a sore teat. The average analysis of the milk of herd A for all periods 
and that of herd B for each period, together with the yields, are presented 
in Table XXIII. 
Tabi<E XXIII.— Summan2ed milk data 
Herd A 
HerdB. 
Periods 
X to s. 
Period I, 
prelimi¬ 
nary. 
Period 3, 
coconut 
fat. 
Period 3, 
peanut 
oil. 
Period 4, 
com oil. 
Period 5, 
soybean 
oil. 
Per cent. 
Per cent. 
Per cent. 
Per cent. 
Per cent. 
Per cent. 
Solids. 
12. 96 
13-25 
13.86 
13. 16 
12. 65 
13 -13 
Fat. 
4.44 
4-51 
5 - 34 
4.43 
4. 14 
4. 20 
Proteids.. 
3. 28 
3.43 
3.31 
3 - 29 
3. 14 
3. 30 
Lactose. 
4 - 51 
4. 57 
4*47 
4.71 
4. 65 
4-89 
Ash. 
.73 
.74 
.74 
.73 
.72 
•74 
Average production for 
Pounds. 
Pounds. 
Pounds. 
Pounds. 
Pounds. 
Pounds, 
the period. 
27.3 
29.7 
25. 2 
31-5 
32.4 
29.7 
