Show I MANY TUBERCULOSIS CAUSES I Department of Agriculture Receives Various Replies on Methods of 01 Spreading Disease J Prepared l by the United State Statu Department of or Agriculture What Is the most common method of spreading bovine tuberculosis In your community This question asked by the United States Department of ot Agriculture In the Interest of establishing establishing establishing lishing accredited tuberculosis free herds brought many answers ascribing the spread of this disease to about a dozen causes In North Dakota where range conditions conditions conditions con con- are arc typical of ot those In many other states of the northwest unrestrIcted unrestricted unrestricted ranging of cattle was given as a cause Drinking at the same pool was another The Introduction Introduction introduction tion of the disease was laid to to cattle not properly tested being shipped Into the state In parts where the pastures are fenced the complaint was that the disease Is spread by cattle nosing ri 1 y Such Cows as This Will Swell the Dairyman's Bank Account each other at fence lines One breed breeder er advocated a double line of fence to prevent this means of ot contact Inthis In this state where purebred cattle are generally tested before being sold but bu grade cattle are not much of ot the spread of at the disease Is laid to Infected Infected infected In In- grade stock Close housing In poorly ventilated buildings was given as a cause of disease by a few tew breed breed- ers Some from observation and experience exI ex ex- I laid the spread of the disease dis- dis ease ense to feeding calves and pigs milk from From one source came the claim that It was spread from dead ead animals by uy dogs and hogs running at large and feeding upon the carcasses From Oklahoma came fewer reasons reasons reasons rea rea- sons but of ot the Ule same type Common pasture Importation of untested d anImals anImals animals an an- from other states and the sale locally of untested animals foul stables stables stables sta sta- bles and contact with Infected cattle In adjoining fields by breathy stock crawling through fences or stock nosing nosing nos nos- ing at nt fence lines Among the chief causes given ghen lu In luNew luNew New England were the low price at which suspected animals are sold the lack of testing hogs and grade cattle to be sure they as well weIl as purebred animals are arc free from disease when sold the breeding to a common bull serving cows outside the herd the common drinking trough milk from diseased animals fed ted to calves and hogs unsanitary barns drafty barns underfeeding the common past pasture re or pasturing boarder animals and nosIng nosing nosing nos nos- ing at and breaking through fence lines by cattle some of which may be diseased The 1 12 causes of or the spread of the disease reported generally were 1 Unrestricted range or common pasture 2 Common drinking pool or trough 3 Introduction of untested cattle 4 Nosing at fence lines 5 G. Close foul housing G. G Milk of Infected animals fed ted to calves and hogs 7 Trading of untested animals 8 Dead animals eaten by dogs and hogs 9 ry stock 10 breeding to a common bull buIl 1 11 Serving cows outside the herd 12 Conditions unfavorable to health as ns drafty barns an and underfeeding |