Show farac fv vi EARLY DETECTION OF TB BIG HELP tuberculin test when properly made not injurious by the united states department of Airi agriculture culture postmortem post mortem examinations tire are often regarded ngar ded as ag tha the final word in deter 1 mining the presence pre senco selica of diseases in animals although such examinations are valuable the tuberculin test used in the eradication of bovine tu bercu Is actually more reliable than the customary customary postmortem post mortem for determining mining the presence of tuberculosis according to dr john R 11 mohler ohler chief of the bureau of animal industry united states department of agriculture I 1 the tuberculin test te indicates the presence ok of the disease but does nut show the progress which the infection has oilade within the body doctor nobler mohler states hence in the early stages of the disease it Is entirely possible for an animal which Is lie actually tua I 1 1 v infected with tuberculosis to show no visible signs on either ante mortem or postmortem post mortem examination tuberculin Is a product prepared by sterilizing filtering and concen brating the liquid upon the tubercle bacilli have been allowed to grow it contains the sterile product of the growth of the germs but not the germs themselves when properly used iteen it can have no possible injurious effect on healthy cattle tuberculin commonly used lit in testing live stock in the united states Is ninde made under government supervision which Rs ns aurea its purity and potency the results obtained thus fir far in systematic tuberculin testing show the effectiveness of this means for eliminating infected animals during the last 12 years more than alian ber culous cattle have been removed from herds in the united states and more than herds have been freed of 0 the disease |