Show TRY DOSING FAILS TO DESTROY VERMIN Prepared by the thu United States Department I of or Agriculture Many farmers and men have haye believed it possible le that certain chem diem chemicals chemicals n administered ministered as medicine or mixed with feed or water may ruay protect I their annuals animals from external parasites Ignorant and unscrupulous dealers I particularly y in the poultry business have lm played on this belief The prevailing pre pre- aIlin railing idea is that the thc material is taken up by the blood and then excreted excreted ex ex- excreted on the surface Many Inny believe that the parasites are ure either poisoned In this a way or else that a condition Is induced which makes the fowl dis di- displeasing pleasing to its parasites parasite and causes cs them to leave Vendors of nostrums 1 have sold liquids tablets and powders for or use In this way The insecticide i authorities in the United States State Department Department De De- I Issued I of Agriculture have warnings against these remedies and andIn In lu man many cases have forced the makers makers mak mak- I ers etS to cease advertising and selling the frauds ra Ineffectiveness In Technical Bulletin T GO thene s of Internal Medication l of for the Control of External Parasites P just off eft the preys press Jre departmental departmental depart depart- mental investigators give gl the results of experiments on which the they based basal their opposition to this fakery In approxImately approximately approximately ap ap- ap- ap proximately 50 j tests of the preparations preparations preparations advertised none showed any indications indications in In- of value against the common corn com mon luau external parasites with which the hens were infested Lice and und mites thrived and multiplied as they might have been heen expected to do if the medicine medicine med had not been administered These tests were the basis of the campaign against the fakers In addition the department carried out tests with a n considerable number of other chemicals in addition to those revealed by analysis sis of these vermin eradicators Chemicals tested Included Included In In- eluded magnesium sulphate or epsom salt sodium carbonate calcium calcium sulphide magnesium oxide sodium sulphate potassium nitrate ferric oxide ferric sulphate ferrou ferrous sulphate potassium potassium diethyl sodium nitro te le tartar emetic emet emet- ic potassium lum iodide sulphur flowers capsicum gentian ginger fenugreek garlic camphor powdered tobacco quinine omica and others In no case was there conclusive evidence evIdence evidence evi evI- dence of any benefit from dosage The ticks lice mites and fleas flens were not nOl eradicated Furthermore there is grave grace danger in giving certain internal Internal internal inter Inter- nal to healthy health fowls as their vitality ma may be he decreased sed to such an extent that the thc parasites find them an nn easier prey lre than the they would have been had no dos doss s been admin The conclusion of the investigators hl Is that the time use of at internal medica medica- medicatIons medications against external parasites is detrimental detrimental det to the poultry Industry In that it not only Involves useless expenditures expenditures ex ex- but allows the parasites to continue their ravages when they might be destroyed by recognized methods Poultry raisers who desire to review re for tor themselves the evidence against the nostrums may obtain Technical Bulletin T CO-T free while the supply lasts b by applying ing to the United States Department of Agriculture Washington Washing Washing- ton D. D C. C |