12 



MANUAL OF MILK PRODUCTS 



veins at the point most distant from the udder pass through 

 what are called the milk wells in the walls of the abdomen. 

 These openings through which the veins pass should be of good 

 size, so as to permit a strong flow of blood through them. As a 

 rule, the greater the milk-secreting power of the cow, the larger 

 and more twisted of outline will these veins be. 



" While experts are able to judge from the general build of a 

 cow much as to her capacity as a milker, the various rules, or 

 ' points/ which have been laid down for judging the merits of 

 milch cows are of themselves uncertain. While the form of the 

 udder is important, as also the size of the milk vein, a large, 

 well-formed udder is not always a sign of productiveness." 



Beach 1 studied the effect of milking cows two and three 

 times daily on the rate of secretion of milk and fat. In a study 

 of eight cows he found that the percentage of fat was influenced 

 by the frequency of milking. He reports his results as follows : 



Average Daily Fat Yield of Eight Cows 









Pekiod I 



Period 



II. Milked Three Times 

 Daily 



Period III 



Name op Cow 



Milked 











Milked 





Twice 



5.15 A.M. 



11 A.M. 



4.45 p.m. 



Total 



Twice 





Daily 











Daily 





lb. 



lb. 



lb. 



lb. 



lb. 



lb. 



Olive .... 



1.08 



.495 



.365 



.495 



1.355 



1.079 



Holstein 







1.056 



.479 



.335 



.498 



1.312 



1.008 



Butterfly 







.9301 



.425 



.485 



.204 



1.114 



.911 



Dolly D 







1.173 



.511 



.330 



.473 



1.314 



1.057 



Black . 







1.209 



.514 



.495 



.211 



1.220 



1.274 



Black II 







1.264 



.547 



.671 



.219 



1.437 



1.251 



Fairview 







1.058 



.543 



.462 



.168 



1.173 



1.223 



SteUa B 







.751 



.384 



.291 



.170 



.845 



.799 



Average 







1.065 



.487 



.427 



.305 



1.220 



1.075 



Total . 







8.523 



3.898 



3.434 



2.438 



9.770 



8.602 



1 Storrs Annual Report, 1904. 



