FEED COST OF EGG PRODUCTION". 
39 
and one which is supposed to represent a fattening ration, but the 
birds gained less in weight and were thinner throughout the year in 
this pen than in any of the other general-purpose pens (see Table 10). 
This ration, however, was deficient in animal protein. The hens 
increased more in weight and were fatter in Pen 6 than in any other 
pen, although the nutritive ratio was lower in this pen than in several 
of the other general-purpose pens. However, with similar methods 
of feeding and normal rations, the wider nutritive ratios represent 
the most fattening rations. A nutritive ratio of about 1 to 4.5 has 
given good results in all of these experiments, although satisfactory 
results were secured on rations having widely varying ratios. 
The digestible nutrients in 100 pounds of the various feeds used 
are shown in Table 12, while Table 13 shows these digestible nutrients 
in 100 pounds of the actual feed or ration given to each pen during 
these experiments. The digestibility of the feeds in these tables 
is based on experiments conducted with farm animals, as no figures 
of this nature are available on poultry. 
Table 12. — Digestible nutrients in 100 pounds of feeds used. 
Feed. 
Crude 
protein. 
Carbo- 
hydrates. 
Fat. 
Feed. 
Crude 
protein. 
Carbo- 
hydrates. 
Fat. 
Wheat 
Pounds. 
8.8 
8.8 
7.8 
8.4 
6.1 
Pounds. 
67.5 
49.2 
66.8 
65.3 
64.3 
Pounds. 
1.5 
4.3 
4.3 
1.6 
3.5 
Wheat bran 
Wheat middlings. . 
Beef scrap 
Pounds. 
11.9 
13.0 
66.2 
37.6 
60.5 
Pounds. 
42.0 
45.7 
Pounds. 
2.5 
Oats 
4 5 
13 4 
Cottonseed meal 
21.4 
9.6 
14 6 
Table 13. — Digestible nutrients in 100 pounds of feed consumed. 
Pen. 
Year. 
Crude 
protein. 
Carbohy- 
drates. 
Fat. 
Nutri- 
tive 
ratio. 
Pen. 
Year. 
Crude 
protein. 
Carbohy- 
drates. 
Fat. 
Nutri- 
tive 
ratio. 
Pounds. 
Pounds. 
Pounds. 
Pounds. 
Pounds. 
Pounds. 
1 
1913 
14.1 
53.1 
4.3 
1 :4.5 
6 
1913 
13.4 
56.4 
3.9 
1 :4.8 
1914 
15.4 
51.0 
4.5 
1 :4.0 
1914 
13.1 
56.0 
3.9 
1 :4.9 
1915 
17.1 
48.3 
4.8 
1 :3.4 
1915 
11.2 
57.8 
3.6 
1 :5.9 
2 
1913 
12.1 
60.1 
3.6 
1 :5.6 
7 
1914 
13.9 
55.0 
4.4 
1:4.7 
1914 
15.0 
64.3 
4.2 
1 :4.3 
1915 
10.6 
58.9 
4.0 
1 :6.4 
1915 
16.8 
51.5 
4.5 
1:3.7 
8 
1914 
14.4 
54.6 
4.5 
1:4.5 
3 
1913 
1914 
12.1 
12.9 
56.6 
55.8 
4.1 
4.3 
1 : 5. 5 
1 : 5. 1 
1915 
15.1 
53.7 
4.6 
1 :4.2 
1915 
9.8 
59.3 
3.8 
1 :6.9 
9 
1914 
1915 
8.5 
8.8 
58.4 
57.6 
3.4 
3.3 
1 : 7. 7 
1:7.4 
4 
1913 
13.2 
55.9 
4.3 
1 :5.0 
1914 
13.5 
55.3 
4.4 
1:4.8 
10 
1915 
12.6 
53.1 
4.1 
1 : 4. 9 
1915 
8.9 
60.7 
3.7 
1 :7.7 
11 
1915 
13.5 
52.1 
4.3 
1 :4.6 
12 
1915 
15.6 
53.2 
4.7 
1 :4. 1 
5 
1913 
12.5 
56.0 
4.2 
1 :5.2 
13 
1915 
14.0 
52.2 
4.5 
1 :4.5 
1914 
13.8 
54.4 
4.4 
1 : 4. 7 
14 
1915 
15.1 
51.4 
4.5 
1 :4. 1 
1915 
14.3 
53.8 
4.5 
1 :4.5 
15 
1915 
13.2 
51.9 
4.2 
1 :4.6 
16 
1915 
12.0 
55.1 
4.0 
1:5.4 
