Journal of Animal Environmental Science (한국축산시설환경학회지)

The Korean Society of Animal Environmental Science & Technology (한국축산환경학회)
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Effect of Types of Milking Instrument and Season on Milk Composition in Holstein-Friesian lactating Cows

착유시스템 및 계절이 홀스타인 착유우의 유성분에 미치는 영향

  • Nam, In-Sik (Department of Animal Life and Environment Science, Hankyong National University) ;
  • Heo, Byong-Moo (Department of Animal Life and Environment Science, Hankyong National University) ;
  • Park, Ho-Kyung (Department of Animal Life and Environment Science, Hankyong National University) ;
  • Min, Tae-Hong (Department of Animal Life and Environment Science, Hankyong National University) ;
  • Son, Yong-Suk (Division of Biotechnology, Korea University) ;
  • Park, Seong-Min (National Institute of Animal Science, R.D.A.) ;
  • Kwon, Eung-Gi (National Institute of Animal Science, R.D.A.) ;
  • Chang, Kyeong-Man (Department of Animal Life and Environment Science, Hankyong National University)
  • Received : 2014.09.02
  • Accepted : 2014.09.20
  • Published : 2014.09.30
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Abstract

This study was conducted to examine the effect of different types of milking instrument and season on milk composition (fat, protein, non-fat milk solids, milk urea nitrogen and somatic cell count) on Holstein-Friesian lactating cows. Raw milk samples were collected from 20 automatic milking system (AMS) installed dairy farms and 85 conventional milking system (CMS) installed dairy farms. Milk fat, protein, NFMS and MUN contents did not changed between AMS and CMS and different seasons. On the other hand, the average SCC in AMS was $239{\times}10^3cells/mL$ which was lower than in CMS ($373{\times}10^3cells/mL$, (p<0.05). In conclusion, present results indicated that SCC in milk might be influenced by AMS. However, this area needed more study to confirm the reason of reducing SCC content from AMS.

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References

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