Commission Report: Tuberculosis. 25 
presence of the disease in all the affected cattle, since only by 
such a procedure will it be possible to guard the healthy and 
newly born animals from infection. 
Fortunately we are in a position to determine with consider- 
able certainty the vast majority of occult cases of tuberculosis in 
cattle, even the incipient cases, with the aid of tuberculin, and 
the clinical cases by physical examination. ‘This alone consti- 
tutes a great advantage in the work of suppression of the disease. 
The tuberculin test should therefore be considered as a very 
important step in the eradication of tuberculosis. As a matter 
of fact all the recognized authorities on the subject are agreed 
on this point. Once the tuberculous animals are recognized con- 
sideration must be given to the most suitable and economical 
way of eradicating the disease from the herd. This naturally 
brings up the question of the disposition of the tuberculous ani- 
mals, and in adopting any particular method one should be guided 
by the extent of the infection of the herd, the quality of the 
affected animals, the sanitary condition of the premises, and last 
but not least, the owner’s intelligence and knowledge of the sub- 
ject. The latter information is necessary to determine if reliance 
can be placed on the owner to carry out minutely all the details 
which are essential in executing any particular method of eradi- 
cation that may he decided upon. The owner’s cooperation in this 
work is without doubt a very essential feature of this great task. 
For this reason a campaign of education of the farmers and stock 
raisers relative to the control of tuberculosis in which all the 
advantages of the eradication of tuberculosis must be impressed. 
on them, would greatly facilitate this important campaign. I+ 
is a well known fact that any voluntary method of suppression 
by the herd owners themselves would bring about better and 
quicker results than when compulsory measures are enforced 
upon them by legislative enactments. Nevertheless the time has 
arrived when a campaign looking towards the control of this 
disease should be entered upon by the general government as 
well as the state and province. This campaign must reach in the 
first place all the clinical pulmonary forms of tuberculosis; then 
tuberculosis of the udder, intestines and uterus. 
Having removed these exceedingly dangerous cases the balance 
of the tuberculous herd may be treated by the Bang system, which 
consists of the establishment of two herds of cattle, one con- 
taining the animals which react to tuberculin, and the other 
