Milk iodine content as influenced by feed sources and sanitizer residues
1981
Hemken, R.W. | Fox, J.D. | Hicks, C.L.
Increases in dietary iodine intake may be related to increased iodine levels in milk and dairy foods. Dairy products may account for 56-85% of the iodine in adult diets. Iodine appears to come from several sources including feeds and iodine sanitizers used during milk production and processing. Supplemental organic iodine is often added to dairy cow feeds above required levels to prevent food rot and iodine deficiency, and to improve reproductive efficiency. Iodine teat dips and premilking udder washes also increase the iodine content of milk. Iodophor sanitizers are used for rinsing pipelines, milking equipment, and teat cups; residues may get mixed with the milk. The use of iodine as a feed ingredient or sanitizer should be closely monitored to prevent misuse and further increases in milk iodine content.
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