PRODUCING MARKET MILK IX DELAWARE. 
Table 2. — Number of coirs, average production, etc. — Continued. 
Item. 
Winter. 
Summer. 
Entire 
year. 
Feed— Continued . 
Silage and other succulent roughage 
pounds.. 
do 
2,479 
486 
SI. 75 
281 
92 
S12. 93 
2,760 
578 
$14. 68 
Labor: 
Human 
71.9 
13.1 
68.2 
10.7 
140.1 
. do 
23.8 
Other costs: 
Building charges 
$6.93 
2.73 
2.29 
4.72 
4. 4.") 
.72 
S6.67 
2.63 
2.20 
4. 54 
3.76 
. 75 
.04 
$13. 60 
Equipment charses and dairy supplies 
Herd charges: Taxes, insurance, veterinary service, 
medicines, and 
5.36 
4.49 
Interest on cow investment 
a. 
Cost of keeping bull 
Motor-truck charge 
Cash hauling of milk 
1.47 
.1 1 
21.84 
6.42 
20. 59 
6.17 
42.34 
12.59 
Total of other costs 
28.26 
26.76 
55.02 
CREDIT FOR CALVES. 
The large credit of 95 calves for each 100 cows in the herds during 
the first year was greater than one would ordinarily expect. It was 
due to a considerable number of cows being sold out of the herds a 
few months after freshening. 
During the second year calves brought lower prices, thus reducing 
the income from that source. 
Table 3. — Credits by years and by seasons for calves produced. 
Item. 
Credit by years. 
1919-20. 
1920-21. 
Credit by seasons. 
Both 
winters. 
Both 
summers. 
Number of calves 
Total value of calves 
Average value of calves 
Calves per cow 
Credit per cow 
Credit per 100 pounds of milk 
236 
$3,929.96 
16.65 
.95 
$15.80 
0.017 of 1 
calf. 
247 
$3,275.90 
13.26 
.88 
$11. 63 
0.016 of 1 
calf. 
272 
$3,828.76 
i 14. 08 
1.52 
i $7. 36 
0.019 of 1 
calf. 
211 
$3,377.10 
116.01 
x .39 
$6,25 
0.014 of 1 
calf. 
These figures are the weighted averages for the respective seasons. 
CREDIT FOR MANURE. 
Three factors were considered in determining the credit for manure : 
(1) The proportion of fertilizing constituents in the feed which was 
returned in the manure, as taken from standard tables; (2) the per 
cent of manure voided in the barn; and (3) the per cent of the fer- 
tilizing constituents saved in storing and handling. 
