Show CHOLERA SERUM WAS GREAT AID prepared by the united states state asi t part apartment ment of agriculture comparatively light from hog cholera the last season tire are the consequence experts of the united stolen states deportment department of agriculture believe of wider end ad more intelligent use of hog cholera to make more certain tile the correct use of serums ur dr D 1 I skidmore calef of tile the division it isloa in control of the ture of se ee ruma rums hns has explained in circular no alc comparative values of tylas of anti ilog cholera serum Se rilin tily lit between tile three airee of avrum aval available lable for cholera cli paven tion haf namely nely blood serum clear d se ruta and clear concentrated serum tile i value of act of thea tyles as a pre pr bentive depends on of tile the and quantity of true serum contained 1 the concentrated scrum berum obtains out ains 81 81 per cent of protect protective ivo serum all and till the other two varieties 05 per cent encle consequently loo volun volumes les of tile the fin cent rated berum have hac ns as much preventive effect us as volumes of tin lilt lin concentrated or defillip K blood blond berdins Be sc ruins with thle known it la Is easy to calculate which offers the creator protection per dollar the department in supervising the manufacture of the requires that ench each nuin marl specify the lie minli minimum nain lose dose of the lie berum tip lie sells which should dj do tile immunization ili proper forin fonn the doses vary with tile quality iu allty of tila lin serums and with the ire and of the hogs to which it Is the liest time lime to hogs hoffs doctor skidmore says la Is before they ore are eight weeks beeks old barier pigs require larger lorger and more expensive dopes doms an additional advantage Is that younger pigs are handled more easily the clear concentrated serum hit tins tile the additional addItIon nI of keepin ats is strength und and preventive power for three years while the are not considered reliable a after ter two years the added year of usefulness makes it easier for manu bianu fac fracturing turing laboratories to accumulate a supply sulli clent for emergencies A copy of the circular inny be obtained by writing to the united states of agriculture washington D C |