158 DAIRY FARMING 



prospective buyers. Many states have laws governing the 

 use of tuberculin. These laws are often changed, and are 

 sometimes far from satisfactory. For these reasons one 

 should understand the law before he tests his herd. 



The tubercular organism in cattle is slightly different from 

 the human form, but sometimes the bovine form is found in 

 human beings. It is thought that tuberculosis of the lungs 

 is rarely if ever contracted from cattle, but some of the 

 cases of tuberculosis in the intestines and glands, especially 

 in young children, are thought to be so contracted. 



145. Inflammation of the Udder. This is one of the most 

 common troubles with dairy cows. It varies in severity from 

 a mild case, when the milk is only slightly stringy for a few 

 days, to severe cases, where the udder becomes so swollen 

 that no milk can be drawn. It may end with the permanent 

 loss of the udder. 



Inflammation of the udder is not the same as the conges- 

 tion that occurs in heavy-milking cows just after calving. 

 Congestion at this time is to be expected and need not cause 

 anxiety, as long as the milk can be drawn from each quarter 

 and the milk appears normal. When the udder is inflamed, 

 the cow should not receive much grain until the udder softens. 

 The ration fed should be laxative in nature and of a light 

 character, such as bran. The milk should be drawn several 

 times daily and the cow carefully protected from cold and 

 exposure. 



Garget is a common name for mild cases of inflammation 

 of the udder. Sometimes there are swellings in the udder, 

 or the milk may be stringy or lumpy. In many cases no 

 special cause can be discovered, although exposure to severe 

 weather, lying with the udder on a cold floor, injury by 

 bruises, or too heavy grain feeding may bring it about. 



