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http://dx.doi.org/10.17555/jvc.2016.10.33.5.274

Iodine Concentrations in Commercial Milks and Bulk Tank Milks of Dairy Farms Performed Different Teat Dipping Methods  

Jeong, Jihyeok (College of Veterinary Medicine & Institute of Veterinary Science, Kangwon National University)
Kim, Danil (College of Veterinary Medicine, Seoul National University)
Kim, Doo (College of Veterinary Medicine & Institute of Veterinary Science, Kangwon National University)
Publication Information
Journal of Veterinary Clinics / v.33, no.5, 2016 , pp. 274-277 More about this Journal
Abstract
To determine the concentrations of commercial milks and the effect of different teat dipping methods on iodine concentrations of bulk tank milk, iodine concentration was analyzed by inductively coupled plasma mass spectrometry (ICP-MS). The 59 bulk tank milk samples were collected. The 8 brands of commercial whole milk and 5 brands of commercial organic milk were purchased. The iodine concentrations of bulk tank milks of 59 dairy farms were in the range from 42.7 to $562.5{\mu}g/L$. The iodine levels of 4 different teat dipping methods with pre-dipping, post-dipping, pre & post-dipping, and non-dipping were $138.9{\pm}41.1$, $200.6{\pm}106.9$, $205.1{\pm}93.2$, and $110.9{\pm}70.4{\mu}g/L$, respectively. No significant difference (P > 0.05) was observed among 4 different teat dipping methods. Iodine concentrations of commercial whole milks were in the range from 149.1 to $210.4(178.8{\pm}22.0){\mu}g/L$, and iodine concentrations of commercial organic milks were in the range from 85.0 to $356.9(214.2{\pm}123.3){\mu}g/L$. Iodine concentrations of commercial milk in Korea are relatively low comparing with those of other countries.
Keywords
iodine concentration; bulk tank milk; teat dipping; whole milk; ICP-MS;
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