344 MILK AND THE PUBLIC HEALTH chap. 



of farm animals to the welfare of all classes of society needs no 

 argument in its support. The aim and sole purpose which has 

 actuated this Commission has been to arrive at the soundest con- 

 clusions possible in the light of the best knowledge obtainable. 



(11) Legislation. 



It is recommended that legislation regarding the control and 

 eradication of tuberculosis among domestic animals be made 

 uniform ; that the laws of the United States and Canada and other 

 American countries for the admission into America of animals 

 from without be made stringent and as much alike as possible ; and 

 that the laws governing the interstate and interprovincial move- 

 ment of cattle and that between different American countries be 

 harmonised. 



The laws governing interstate and interprovincial movement 

 of cattle should be of such character that every state and every 

 province will be free in its eradication work from unnecessary 

 difficulties due to the existence of the disease in other states and 

 provinces. 



Legislation is especially required to prevent the various 

 frauds which interfere with the satisfactory use of tuberculin sold 

 to be used by veterinarians and others. 



(12) Sanitation. 



In the eradication of tuberculosis it should be kept in mind 

 that, in addition to protecting the animals against exposure to 

 tubercle bacilli, it is desirable to make them as resistant to infec- 

 tion as possible. This can be done by stabling them in clean, 

 disinfected, and properly lighted and ventilated barns, giving them 

 abundant clean water and nutritious food, a sufficient amount of 

 daily exercise in the open air, and attending generally to those 

 conditions which are well known to contribute to the health of 

 animals. 



The daily removal of manure from stables, and water-tight 

 floors and good drainage in stables are urgently I'ecommended. 



Young stock particularly should be raised as hardy as possible, 

 and should be accustomed to liberal exercise and living in the 

 open. 



(13) Immunisation. 



That as none of the various methods for the immunisation of 

 animals against tuberculosis have passed sufficiently beyond the 

 experimental stage, the Commission is unable to endorse any of 

 those for practical use at the present time. 



