10 BUIJURTZN 1144. U. S. DEPARTMENT OF AGRICULTURE. 
The amount of manure recovered and drawn bo the fields is about 
1 ton a month for each cow. The feeding season is about 7 months : 
the other 5 months the ws are outdoors most of the time. The 
estimated value of manure oh Wisconsin farms in 1 l is -_._" a ion 
for that ] i In ed luring the feeding season and about half that price 
for the manure left on the fields and pastures, together amounting 
tc -_1._" i i the yeai : : ea h At this rate the credit to milk 
production on account of manure is 29 cents per 100 pounds for the 
farms s: 
LABOR APPLIED TO MILK PRODUCTION. 
The man lal | S] ent n - and milk per cow averaged 171 hours 
per cow for the year, or 28 minutes a day. This covers milking, 
feeding, caring for the barns, utensils, and the like. It does not 
include hauling manure away from the barn, delivering the milk, or 
care of the young st k. One farmer with a large herd spent 
fa urs pej z direct labor on cows, while the least work reported 
was 116 hours per cow. Five farms spent as little as 20 minutes 
day per cow on care of cows, and only four farms spent more than 
45 minutes per cow. Five farmers used milking machines part of 
the year and by use of them were able to reduce the labor to a low 
point, but several other farmers not equipped with machines spent 
very little more time on their e<:>ws than those using machines. The 
total labor on the dairy herd averaged 2,706 hours per farm for the 
year, of which 2^251 hours was for cows. The labor requirements 
by groups of farms is shown in Table 3. 
Table 3. — Labor requirements. R f labor per farm, pc I oer 1V6 
pounds of mUJc produced, together wit! iations observed, or. -.: 
dairy farms m 1920. 
] Gioup 
B. " 
j G T* 
:-:■.:-; 
1 " 
jr:ur 
1 " 
All 
-' -; 
11 
: :>: 
B 
5,5m 
( - 
Averse :::■:•:::::: r-er ::~ : — ii ? £ 
- :■:•; 
lab:?: ?.e ;t:?.z 
tfENTS 
h : V 7. c 
T::.i'.T-rr farr: i-strle - 11 
i _--.- - : ;:> --_-.- -■ ~ : : _i:~_ _ .- 
Co— ~ ;:£ * •;: ::~ "." ; 
:i ; :--: :". .".:: i:- : . "■'-:. z'zz ;:' ~:'_> I. Si 
; 
2.11 
- 
- " 
:y 
2.453 
219 
2.112 
1 -., 
:'.■ 
: :-_ 
: " 
2,251 
m 
- i 
VABIAT1 . SS 
.'3-1?.'. 
e: . 
:zz-. fziilk 
■ 
-. 
.-" 
304 
215 
116 
IIS 
116 
:- 
141 
■ n 
:. la 
4.73 
4.96 
■ •' 
- - 
.. : 
1.90 
. 53 
:- 
1.23 
Of the- total la": : aj plied t the dairy herd. 8a i :.t was spent 
on the sows, 5 per cent on delivering milk to factory Or shipping 
" ::.:. and lo per cent ■: :\ . .:..: _ : i the young ?t :k. Half th< 
Whitson, head of the department of 5 : 5, Unii Wisconsin is the anthor- 
!-;- ::: :"..t ;:::-. ' a:v usrd :.a :"_ ■ :.V._ — .in.e :■: LU: :_;■« t ;,'.-.:-:- iu::^r ; - ■ : - -.1 
