ILLINOIS STATE DAIRYMEN'S ASSOCIATION. 



245 



i)efore milbing, except wli^ere indicated by a star. It was omittediin' these 

 casiesi under the imprecision' that the manipulation, incident tO' the' wash- 

 ing might affect the per cent, of fat in the first milfe drawn. Theres'ults 

 do not indicate, however, that Siuch wasi thei case. The CO'WS' were milked 

 in the usual manner, through a funnel into a pint bottle until the first pint 

 was secured, after which they were milked into a pail until nearly finish- 

 ed. Toward the close they were again milked into bottles containing 

 one-fourth of a pint each, and when the milking was finished, the last 

 four quarter pints were taken as representing the last pint drawn. 



It will be noticed that in every casie the per cent, of solid's not fat ia 

 higher for the milk first drawn, and the percent, of fat lower; but the dif- 

 ference between the fat of the first and. last drawn is much- greater than the 

 inverse difference between the so Kds not fat, and its fluctuations are wi- 

 id'er from' d'ay to day, and between different cows. 



Table 27. Composition of first pint and of last pint of this sample 

 milking. 



Per cent fat. Solids not fat. 



First Last First Last 



Tina Clay 1.6 6.4 9.7 9.33 



Tina Clay 1.4 3.8 9.45 9.10 



Tina Clay 3.0 5.8 9.61 9.35 



Tina Clay 2.1 5.6 9.65 9.55 



Tina Clay 1.2 6.4 9.62 9.15 



Average 1.86 5.60 9.61 9.30 



Nettie 1.5 11.8 10.25 9.12 



Janet 2.9 6.3 10.16 9.76 



Pogis 2.5 7.6 10.03 9.74 



Jane 2.8 6.7 9.96 9.80 



Mary 1.2 7.2 9.75 9.10 



* Udders unwashed. 



Total 

 milk 



Usual 

 per 



cent 

 fat 



Ratio 



of fat 



first to 



last 



16.6 



3.5 



1:4* 



20.0 



3.5 



1:2.7* 



16.0 



3.5 



1:1.9 



18.5 



3.5 



1:2.7* 



2L8 



3.5 



1:5.3 



18.6 



3.5 



1:3 



11.8 



4.6 



1:7.9 



6.3 



5.5 



1:2.2 



7.3 



5.1 



1:3 



8.4 



4.9 



1:2.4 



8.6 



3.7 



1:6 



COMPARISON OF TWO COWS. 



Two mature cows, E^ra, a high grade Holstein weiglhang 1,200 pound*, 

 and Janet, a high grade Jersey weighing 875 pounds, were fresh on the 



