THE DAIRY TYPE 23 



capacity than another animal with less depth, but greater 

 width. 



Fig. 9 is an illustration of a Jersey cow of great capac- 

 ity. She shows an exceptionally good development of the 

 barrel. Fig. 7 is a Jersey equally as well bred as the 

 former, but on the other extreme in dairy capacity. She 

 shows an unusually small development of the barrel, in keep- 

 ing with her inferior dairy qualities. 



Circulation. After the food is digested and absorbed 

 into the circulation it must be carried to other organs of the 

 body, and undergo many changes before it is secreted in the 

 form of milk. A strong, active circulation is of great im- 

 portance, since without it the whole organism lacks tone. A 

 large heart girth is usually assumed to indicate a large capac- 

 ity of the heart and lungs. There is, however, some question 

 as to the relation between the size of the body at the point 

 called the heart girth and the size of the vital organs, but 

 there are but few exceptions to the rule that cows of great 

 milk-producing capacity, especially those that continue to 

 produce for a series of years, have more than an average de- 

 velopment in this respect. A soft, pliable skin is also an 

 indication of a good circulation. When the animal has good 

 " handling qualities," it means the small blood vessels below 

 the skin are active and that the animal is in good health. 

 A clear bright eye is also an index of a good circulation. 



The Milk Veins and Milk Wells. The most important 

 point to be observed regarding the circulation is the develop- 

 ment of the milk veins. The blood, after supplying the udder 

 with material for milk secretion, starts back towards the heart 

 through the milk veins. One of these opens on either side 

 near the front line of the udder attachment to the body, and 



