- Volume 51 Issue 6
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Seasonal and Regional Effects on Milk Composition of Dairy Cows in South Korea
- Nam, Ki-Taeg (School of Animal life and Environmental Sciences, Hankyong National University) ;
- Kim, Ki-Hyun (School of Animal life and Environmental Sciences, Hankyong National University) ;
- Nam, In-Sik (Korea Livestock Products HACCP Accreditation Service) ;
- Abanto, Oliver D. (School of Animal life and Environmental Sciences, Hankyong National University) ;
- Hwang, Seong-Gu (School of Animal life and Environmental Sciences, Hankyong National University)
- Received : 2009.11.06
- Accepted : 2009.12.21
- Published : 2009.12.01
For a period of over 6 years, more than 160,000 milk samples were collected and analyzed to determine the influence of different seasonal temperatures and geographic regional location on milk composition in South Korea. Fat, protein, lactose, non fat milk solids (NFMS) and total solids (TS) contents were significantly higher among dairy cows milked in winter season than other seasons (p<0.05). In contrast, freezing point (FP), milk urea nitrogen (MUN) and somatic cell count (SCC) were significantly higher in summer season than other seasons (p<0.05). The average SCC in the autumn season was
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