
MILK AFFECTED BY DAIRY PRACTICES. 
BRUSHING THE COWS AT MILKING TIME. 
iit 
It is a common practice with some dairymen to go through 
the stable and brush their cows just before they begin milking. 
In order to determine the effect of this practice upon the germ 
content of the milk the following series of experiments was 
The details of these experiments are practically the 
same as those outlined in connection with the wiping tests. 
One of the groups of five cows was milked in the usual way. 
- The other group was then brushed with a common stiff broom 
made. 
TABLE 23. 
Showing the germ content of the milk drawn before and after 
brushing the cows. 


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hs bo 
| en eve! cei 
MBE z | ‘Treatment Ss a dake) des 
0) Bias mE ees ee = s 5 = 
og e oS 
| ea Q = AQ 
: | 
re ; a - | March 21 | Not brushed 50 7h PAA Nak Oy 
iT; = : - - | March 21 | Brushed goo 67 25 
ae : “ - - | March 22 | Not brushed 242 | 17 25 
a : --| March 22 | Brushed £4 742 ind oa aS ho 
3. = 3 : March 22 | Not brushed PAu 8 Vy! 
a 2 - March 22 Brushed 758 | 42 g2 
40 2 ° : =) iviarch-23"\) Not brushed 225 42 17 
4, 2 - - «| March 23 |. Brushed I,242 275 42 
5, - - - - | March 23 | Not brushed gos 267 92 
a 2 : - | March 23 | Brushed T3502 258 42 
6, - 4 - | March 24 | Not brushed B23 67 O 
6, - - - - | March 24 | Brushed TE. 202 207 O 
4 - : - - | March 25 | Not brushed 467 | 42 17 
7, é 2 5 - | March 25 | Brushed 625 175 O 
8, - - - -.| March 26 | Not brushed go8 200 8 
8, 2 - Fs - | March 26 | Brushed 1,883 383 BS 
9, A : * - | March 27 | Not brushed 363 25 25 
Q, s 2 - | March 27 | Brushed 508 79 12 
stor 3 iz 3 - | April 1 Not brushed 842 27 33 
10, “ > = - | April’ 1 Brushed I, 308 300 37 
i ce : . 2 - | April I Not brushed goo 221 | 33 
Te : 3 2 ~ | April 1 Brushed 2,533 520.) 12 
12, ‘ : 3 She Drie Not brushed Oa2t 484 17 
12, He k zi - | April 2 Brushed I 025 188 | 108 
13: 3 z : - | May 18 Not brushed AY330 0 Tl 35d eaes 
13, S “ % - | May 18 Brushed 4,300 | 1,200 1.525 
14, : c z - | May 18 Not brushed 350 20 O 
14, ie = : - | May 18 Brushed 500 100 50 
Averages, - - - - — Not brushed | 1,207 213 | 59 
Averages,. - : : a — Brushed 2,286 381 | 117 
Increase asresult of brushing, — — 1,079 168 | 58 
