Show working safeguards to keep out tuberculosis howa how to 0 select cows or a bull with a minimum of risk in obtaining animals infected with tuberculosis Is one of the most important questions the beginning dairyman and many small dairies have to answer there Is no infallible rule but there are three good working safeguards that are practical they are 1 so far as possible buy only from herds that are accredited by the united states department of agriculture as being free from tuberculosis and buy only from persons with a reputation for square dealing 2 insist on cattle being bought subject to retest for tuberculosis 00 60 days after they are delivered to you 3 keep all recently purchased ani mals separate from your herd until you have a favorable report on the retest |