Show CONTROL CHOLERA BY vaccination although tho tao vaccination of hogs hoga against hog cholera Is a necessary measure tor for tile the control of this disease it Is not practiced gener generally tilly in the average year only 15 per cent ot of the hogs on farms in the corn belt are vaccinated vaccina ted about go CO per cent of the vaccination Is done about the tha time the pigs pIg sare are weaned and 40 per cent as a result of a cholera scare and iri in older hogs these estimates show that the economic importance of protecting the pig crop against cholera Is not appreciated by the average swine grower two general outbreaks of hog cholera have ae occurred lit in the corn belt during the past five years it Is only in years when the disease epizootic and the death loss runs into the millions of hogs and hundreds of thousands are marketed before they are finished that swine growers consider the disease of great economic importance we should mot cot lose sight of tile the fact that cholera Is responsible for a heavy annual death rate in hogs herd outbreaks of cholera occur every year sear tn in communities where there Is a dense hog population it Is not unc uncommon 0 tor for t the lie disease to spread in lat late e summer and in tile the fall causing a heavy death rate in neighboring herds and seriously interfering with swine production in that community or section of the state the vaccination of pigs about weaning time will solve the problem of hog cholera control late summer and fall outbreaks of the disease cannot occur if the spring pig crop Is protected by vaccination this Is the only general disease control measure that can be recommended dr R A craig purdue university |