Show LIVE UVE W I fl TT V VIT NEWS N NIT IT PAYS P TO FEED IODINE TO SWINE Throe Three e experiments experiment conducted during three different years ears at the Iowa ex- ex experiment ex experiment station Ames have shown that Iodine fed to young oung growing swIne either on rape pasture or In dry lots increased the tho rate of ot gain about 10 per cent and at the same time re- re reduced re reduced tile the feed feell required for tor a II hundred pounds of ot gain about 10 per cent From these results the station work work- workers workers workers ers have concluded that It Is a n good goodplan goodplan goodplan plan for tor farmers In the northern halt half haltof ot of tIle the United States In In the regIon to add sodium or potassium Iodide to the ration of ot their growIng swIne They recommend all adding ding about third one third to an nn ounce of ot either sodium or p potassium Iodide to each hundred pounds of ot mineral mineraI mixture which Is kept before the swine at all times The results and recommendations given above are contained In n a new research bulletin by the Iowa station No 80 SG Studies In Iodine Feeding The Tho bulletin Is written by b John v L Evvard Enard and C C Culbertson Al- Al Although Although Al Although though It Is somewhat technical In nature It contains practical suggestions suggestions for tor the swine grower Copies may be secured by writing to the Bul Bul- Bulletin Bulletin letin Section Ames In the Ames experiments the pigs gained an average Crae of ot pounds per day when they had Iodine In their ra- ra ratIon ration ra ration tion while those of ot similar lots with with- without without without out Iodine gained on the average pounds per day The feed re- re required re- re required re required for tor a n hundred pounds s of ot gain was only 40 pounds on the average for tor tile the pigs In the lots getting potassium potassIum slum Iodide while those without the IodIde required 4 O pounds of ot feed to make a hundred pounds of ot gaIn I The Iodine-fed Iodine pigs not only gained faster with less feed teed per unit of ot gain I but also made greater dimensional growth In height In length and In leg legI I circumference Evvard Ev states that during the 15 13 I years he has been at the Iowa sta station tion ton he lie has never observed any signs ot of goiter or hairless pigs In the swine DurIng that time Is the least num num- number num- num number number ber of ot pigs farrowed per year and this number has run run as ns hl high h as SOO how how- however How However ever during these same years ewes which drank of ot the same water and ate feed grown on the same fields dropped lambs showing goitre four tour different years It appears that although goitre may not show up pigs In tills this region may actually lack sufficient Iodine In theIr I ration The water In Iowa In tact fact the whole northern United States Is known n to have a low content of Iodine The bulletin states that It if a pig con con- consumed consumed 10 pounds of ot water p per r day dayot ot of the Iodine content which Ames water shows It would require the pig OIS 18 days to secure a single grain ot of IodIne I |