342 MILK AND THE PUBLIC HEALTH CHAP. 



tuberculin test, they may be considered healthy and dealt with 

 accordingly. 



It is recommended that a herd extensively infected should not 

 be treated by the method of general separation, but that the con- 

 struction of a new herd from the offspring only is advisable. 



2. If the herd is found, by either or both of the above methods, 

 to contain a relatively small proportion of diseased animals, separa- 

 tion of the diseased animals from the healthy animals, and the 

 construction of a sound herd from the healthy animals, and the 

 offspring of both, is advocated. 



As a working basis in carrying out these principles, we advise : 



(a) That herds containing 50 per cent or more of diseased 

 animals be treated as coming under section 1. 



(b) That herds containing under 1 5 per cent of diseased animals 

 be treated as coming under section 2. 



(c) That herds falling between these figures be graded according 

 to the option of the owner. 



(d) That it shall be the prerogative of the owner to reject 

 either plan, and have his herd dealt with by removal and slaughter 

 of diseased animals, with or without compensation, according to the 

 public policy in operation. 



(2) That when by any means the officials properly charged 

 with the control of tuberculosis become aware of its existence in 

 a herd to which a policy of slaughter and compensation cannot 

 reasonably be applied, such herd must be dealt with by the owner, 

 under Government supervision, on the principle of the separation 

 of all sound animals from those affected. Such separation must 

 be effected by treating the whole herd as diseased, and rearing the 

 calves separately, either on pasteurised milk or the milk of healthy 

 cows ; or when the number of those affected is so small as to warrant 

 such a course, by the application to the whole herd, from time to 

 time, under official supervision, of the tuberculin test, and the entire 

 segregation of all animals found to react. 



In the event of any owner refusing or neglecting to adopt 

 either of the above methods; his entire herd to be closely quaran- 

 tined and sales therefrom to be entirely prohibited. 



(3) That a policy of compensation be recommended as useful 

 and usually necessary as a temporary measure. 



(4) That, when slaughter is necessary, in order to avoid 

 economic loss, every effort should be made to utilise as far as 

 possible the meat of such animals as may be found fit for food on 

 being slaughtered under competent inspection. 



(5) The details of the Commission Plan are fully set forth in 

 a separate Appendix (not reproduced). 



