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Abstract
In this study, iodine levels of blood in dairy cattle province in the 4th district of Bandar Abbas, Haji Abad, Bandar Lengeh and Roudan were compared the standard limit. To do this research cluster sampling was used, a total of 20 farms unit randomly selected and per unit of 5 heads blood samples and a rations per unit, that on the whole 100 blood samples and 20 diets were taken. Blood sampling also was drawn at random from a cow's jugular vein. Iodine mentioned samples using atomic absorption light spectrum were measured. Samples of dietary iodine lev- els in Roudan and Haji Abad was respectively: ppb299.54 and ppb272.77) significantly compared to samples col- lected from Bandar Lengeh and Bandar Abbas (respectively: ppb193.26 and ppb142.33) was higher. (P < 0.0001) In comparison to the values established for iodine, the iodine in cows under this test was deficient in several areas.
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