Grain, iodine concentration

Thel iodine concentration of these feeds and foodstuffs further varies with plant species and plant parts. Grains and seeds in Europe store low amounts of iodine (e.g., between 75 and 100 p,g I kg DM), whereas potatoes and leguminous plants store between 100 and 200 pg I kg DM. In Germany, sugar and fodder beets (and their tops) typically accumulate 250 and... 

Goats and sheep fed only 600 pg added iodine/kg feed (i.e., grain dry matter equivalent) had thyroid iodine concentrations in the range 900-1300 pg/g gland, with no differences between the dams and their kids and lambs, respectively (Groppel et ai, 1989). 

Microscope appearance. Place a small amount of dry starch on a microscope slide, add a drop of water, cover with a slip and examine under the microscope. Characteristic oval grains are seen which have concentric rings round a hilum which is towards one end of the grain. Run a drop of very dilute iodine solution under the slip from a fine dropping-tube the grains become blue. 

Iodine, iron, and zinc increased in wells over the concentrations in the brine or local groundwater, represented by the private (PVT) well. The researchers hypothesized that chemical displacement of ions coating the sand grains took place. This explanation is plausible for the iron alone. Hence, another explanation was... 

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