The introduction of the disease in this manner may be avoided by requiring a tuberculin test of all new animals admitted on the premises.
"Special Report on Diseases of Cattle"
U.S. Department of Agriculture J.R. Mohler
Those who have had most experience with tuberculin have failed to observe any injurious effects following its use upon healthy cattle.
"Special Report on Diseases of Cattle"
U.S. Department of Agriculture J.R. Mohler
This being the case, it should not be necessary to force the tuberculin test upon owners.
"Special Report on Diseases of Cattle"
U.S. Department of Agriculture J.R. Mohler