26 
BULLETIN 561, U. S. DEPARTMENT OE AGRICULTURE. 
Table 6b. — Percentage of egg production for 4-week periods, 1914-15. 
100 PER CEXT=1 EGG PEE. HEX PER DAY. 
Period. 
Third laying year. 
Second laying year. 
Penl. 
Pen 2. 
Pen 3. 
Pen 4. 
Pen 5. 
Pen 6. 
Pen 7. 
Pen 8. 
Pen 9. 
1914. 
November 
Per ct. 
1 

2 
a! 
39 
33 
36 
29 
33 
24 
15 

Per ct. 
1 
1 
1 
6 
26 
41 
36 
23 
26 
19 
20 
i 
Perct. 
7 
2 
3 
11 
22 
26 
28 
35 
22 
27 
15 
10 
4 
Perct. 
(0) 
(0) 
(0) 
16 
36 
52 
68 
62 
62 
45 
32 
17 
2 


7 
Perct. 
(14) 
(2) 
(0) 
21 
35 
46 
36 
35 
37 
28 
25 
15 
9 

1 
Per ct. 
(8) 
(0) 
(7) 
27 
35 
45 
46 
44 
27 
25 
19 
12 
3 
2 
6 
Perct. 
(9) 
9 
19 
27 
40 
46 
47 
45 
44 
39 
33 
24 
8 
1 
Perct. 
(19) 
8 
21 
40 
64 
71 
73 
73 
65 
57 
41 
23 
3 
2 
Per ct. 
(16) 
9 
1915. 
Januarv 
7 
20 
32 
April 
38 
May 
45 
Mav 
42 
34 
July 
August 
September 
October 
21 
21 
15 
10 

December 
1916. 

Average 
20 
28 
16 
26 
16 
24 
31 
34 
23 
28 
23 
26 
29 
1 31 
42 
143 
23 
1 24 
Period. 
First laying 
rear. 
! Pen 10. 
Pen 11. 
Pen 12. Pen 13. 
Pen 14. 
Pen 15. 
Pen 16. 
1914. 
1915. 
Per ct. 

2 

: 17 
! 33 
1 40 
! 55 
! 54 
I 41 
1 40 
35 
2S 
26 
Perct. 

3 
16 
20 
29 
37 
47 
49 
49 
46 
42 
23 
5 
Perct. 
7 
24 
39 
Perct. 
Perct. 
Perct. 
Per ct. 
Februarv 
66 
60 
70 
68 
61 
62 
49 
41 
38 
20 
31 
63 
67 
59 
48 
48 
42 
^5 
38 
30 
27 
7 
13 
35 
65 
67 
69 
67 
59 
53 
43 
39 
34 
25 
8 
March 
April 
Mav 
May 
June 
July 
August 
September 
10 
17 
25 
17 
13 
2 
3 
4 

2 
10 
4 
11 
17 
25 
44 
39 
34 
23 
20 
12 

2 
1916. 
8 
12 
Average... 
3-year aver 
29 
29 
46 
40 
44 

9 
19 

! 
1 Two-year average. 
Figures in parentheses are repetitions, put in for comparison; they are not included in the averages. 
For repetition of month of May see note under Table 4. 
The fall and early winter eggs were largely secured from the pullets, 
as the production of the yearling hens during these months was very 
low. The total egg yield of all periods throughout the year is less 
during the second year, although this difference is neither as large 
in the Leghorns (Pens 4 and 8) as in the general-purpose breeds 
(Pens 1, 2, 3, 5, and 6), nor in the late-hatched (Pens 4, 5, and 6) as 
