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KMID : 1094020160330050274
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Journal of Veterinary Clinics
2016 Volume.33 No. 5 p.274 ~ p.277
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Iodine Concentrations in Commercial Milks and Bulk Tank Milks of Dairy Farms Performed Different Teat Dipping Methods
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Jeong Ji-hyeok
Kim Doo
Kim Dan-Il
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Abstract
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To determine the concentrations of commercial milks and the effect of different teat dipping methods oniodine concentrations of bulk tank milk, iodine concentration was analyzed by inductively coupled plasma massspectrometry (ICP-MS). The 59 bulk tank milk samples were collected. The 8 brands of commercial whole milk and5 brands of commercial organic milk were purchased. The iodine concentrations of bulk tank milks of 59 dairy farmswere in the range from 42.7 to 562.5 μg/L. The iodine levels of 4 different teat dipping methods with pre-dipping,post-dipping, pre & post-dipping, and non-dipping were 138.9 ± 41.1, 200.6 ± 106.9, 205.1 ± 93.2, and 110.9 ± 70.4 μg/L, respectively. No significant difference (P > 0.05) was observed among 4 different teat dipping methods. Iodineconcentrations of commercial whole milks were in the range from 149.1 to 210.4 (178.8 ± 22.0) μg/L, and iodine concentrationsof commercial organic milks were in the range from 85.0 to 356.9 (214.2 ± 123.3) μg/L. Iodine concentrationsof commercial milk in Korea are relatively low comparing with those of other countries.
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KEYWORD
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iodine concentration, bulk tank milk, teat dipping, whole milk, ICP-MS
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