MILK AFFECTED BY DAIRY PRACTICES. 
TABLE 22. 
Showing numbers of bacteria in milk before and after the udder 
fe, 


and flank were wiped with damp cloth. 




NUMBER OF EXPERIMENT. Date. Treatment So Bo Zo 
of Cows. CAS a0 zo 
~ w fone’) 
pQ FQ = £ 
Thee is 3 E E April 13. | Not wiped 1,070 329 | 21 
A ‘ - 4 April 13 | Wiped I ,030 467 | 100 
ee » 5 r April 13 | Not wiped 2,780 958 | 142 
eet. : ; " April 13. | Wiped 530 204} 3 71 
gieih< 2 i April 14 | Not wiped | 64,590 | 39,192 21 
Aan ¢ ; : April 14 | Wiped 250 42 O 
hatin ' s 2 April 14 | Not wiped 490 LES O 
ieee 3 : : April 14 Wiped 800 313 50 
ea . : 3 April 15 | Not wiped 725 S53 Ae oi, 
oe : ‘ = April 15 W iped 575 421 2 
6a. ¢ . April 15 Not wiped 1,310 363 66 
ee : 2 s April 15 Wiped 310 gI 13 
ae. : : April 16 | Not wiped 505 29 87 
pee : £ 3 April 16 | Wiped 325 25 4 
ae % L i April 16 | Not wiped 800 133 33 
pels . : : April 16 Wiped 754 fi 50 
Gienae 2 5 2 May 26 Not wiped 210 75 O 
G,.-- a id . May 26 Wiped 100 17 O 
TOs) = 5s f 2 May 26 Not wiped 660 L75) Ise 
TO. = 4 é : May 26 Wiped 385 83 32 
eke z a 2 May 27 Not wiped | 15,475 | 4,050 | 342 
fre % 2 a May 27 Wiped 3,025 425 | 200 
‘pga £ 2 = May 28 Not wiped 1,130 142 25 
f2e: = s Z ‘ May 28 Wiped 590 LOO) Wr 4Z 
Raia s z May 31 Not wiped 2,010 392 | 116 
rae 2 - : May 31 Wiped 650 150 17 
Averages, = A: = = Not wiped 7,058 3,554 81 
Averages, - i Z _ Wiped 716 18047 
Decrease due to wiping, > — O104451 vo, G00 Etat 






In nearly all of these experiments the milk drawn from the 
cows which were not wiped with a damp cloth contained more 
bacteria than that drawn from the cows which were wiped. In 
a number of experiments the differences are very striking. 
There is only one experiment, No. 4, where the milk from the 
wiped cows contained more bacteria than from the unwiped. 
This condition, of course, could not result from the wiping but 
was evidently caused by some other condition. By averaging 
all of the samples taken from the cows which were not wiped 
it is found that the germ content of the milk was 7,058 bacteria 
per cubic centimeter, while the average of the samples taken 
