Yield of milk, in pounds £? Yield of milk, in pounds 
July 8, 1918 
Percentage of Fat in Cow’s Milk 
93 
Table XVII .—Correlation between the percentage of fat in cow’s milk and the yield— 
Registered Ayrshires 3 to 4 years of age 
Percentage of fat 
30 
3 -1 
3-2 
3-3 
3-4 
3-5 
3-6 
3 - 7 
3-8 
3-9 
4.0 
4 -1 
4. 2 
4-3 
4.4 
4-5 
4.6 
4*7 
4-8 
Total. 
6,500. 
1 
I 
7.000. 
X 
2 
1 
1 
5 
7.500. 
6 
8,000. 
1 
24 
8,500. 
1 
6 
_ 
2 3 
9,000. 
d 
35 
9.500. 
1 
3 
4 
. . . 
10,000. 
1 
T 
17 
10,500... 
1 
1 
3 
1 
* * * 
19 
11,000.. 
X 
2 
11.500. 
X 
7 
12,000... 
1 
3 
12,500. 
X 
1 
3 
13,000... 
I 
3 1 
13.500. 
1 
4 
14.000. 
14.500. 
I 
3 
15.000. 
1 
3 
2 
Total . 
X 
0 
0 
4 
XO 
7 
14 
18 
20 
22 
28 
19 
17 
16 
6 
7 
1 
1 
X 
192 
r—— 0.093 ±0.048 
BLE XVIII .—Correlation between the percentage of fat in cow's milk and the yield- 
Registered Ayrshires 4 to 5 years of age 
Percentage of fat 
3.1 
3-2 
3-3 
3-4 
35 
3.6 
3-7 
3.8 
3-9 
4.0 
4-1 
4.2 
4.3 
4.4 
4-5 
4.6 
4-7 
Total. 
7,500. 
2 
I 
8,000,.... 
1 
2 
5 
6 
x 
A 
* 
•> 
£ 
3 
8,500. 
X 
1 
4 
2 
O 
2 
» 
3 
I 
4 
7 
j 
3 
I 
27 
21 
9,000. 
2 
x 
A 
< 
0 
x 
0 
e 
O 
2 
x 
x 
2 
l 
9,500. 
4 
x 
3 
4 
3 
j 
4 
4 
j 
t 
3 
A 
x 
0 
29 
xo, 000. 
2 
2 
x 
0 
1 
*t 
2 
x 
x 
*1 
Z 2 
10,500. 
X 
1 
X 
4 
3 
1 
1 
O 
2 
1 
l 
l6 
11,000. 
x 
I 
1 
x 
6 
XI,500. 
I 
x 
1 
x 
J 
I 
* 
X 2 ,OOO. 
1 
1 
I 
5 
7 
12,500. 
x 
I 
3 
13,000. 
1 
I 
x 
A 
13,500. 
1 
X 
1 
3 
2 
14,000.. 
I 
1 
2 
14.500. 
0 
15,000. 
1 
1 
15.500. 
Q 
16,000. 
O 
16, 500. 
O 
17.000. 
17.500. 
.i 
.... 
! 
x 
V 
x 
Total. 
I 
0 
X 
9 
7 
x 3 
16 
21 
T 9 
19 
18 
16 
7 
4 
5 
3 
X 
160 
0.023 ±0.053 
