Journal of Animal Science and Technology

  • 제46권6호
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  • Pages.925-936
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  • 2004
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  • 2672-0191(pISSN)
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  • 2055-0391(eISSN)
한국축산학회 (Korean Society of Animal Sciences and Technology)
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홀스타인 젖소의 비유시기별 체세포 수와 우유 성분에 미치는 제요인

The Effects on Somatic Cell Score and Milk Components by Days in Milk in Holstein Dairy Cows

  • Ahn, B.S. (National Livestock Research Institute, RDA) ;
  • Kie, K.S. (National Livestock Research Institute, RDA) ;
  • Suh, K.H. (National Livestock Research Institute, RDA) ;
  • Hur, T.Y. (National Livestock Research Institute, RDA) ;
  • Yeo, J.M (National Livestock Research Institute, RDA) ;
  • Lee, H.J. (National Livestock Research Institute, RDA) ;
  • Jeon, B.S. (National Livestock Research Institute, RDA) ;
  • Park, S.B. (National Livestock Research Institute, RDA) ;
  • Kim, H.S. (National Livestock Research Institute, RDA)
  • 발행 : 2004.12.31
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초록

본 연구는 낙농가의 소득과 직결된 원유 품질과 관계가 깊은 체세포 수(Somatic Cell Count, SCC)과 주요 우유 성분에 대하여 영향을 미치는 여러 요인 즉 아비 종모우, BLV type의 감수성 여부, 산차, 분만 월, 비유기 등에 대한 효과를 구명하였다. 조사기간은 2001년 1월부터 2004년 3월까지 분만한 홀스타인 젖소로부터 30$\pm$5일의 간격으로 시료를 채취하였으며, 우유성분과 체세포 분석은 Somascope MK2와 Lactoscope FTIR을 이용하여 총 3,897 개의 기록을 분석하였다. 비유기는 비유초기(30일 미만), 최고 비유기(30~60), 비유 중기(60~120), 비유 후기(120~180), 비유 말기(180일 이후)로 편의상 구분하였다. 분석 결과 대부분의 요인들이 모든 비유기에 걸쳐 유의적인 것으로 나타났으나 BLV type은 비유기에 따라서 차이를 나타내었다. 특히, BLV 감수성 여부는 조기에 검사를 통하여 보유 인자를 제거시키는 것이 장기적으로는 축군의 유질의 개선에 도움이 될 것으로 기대된다. 단백질에 대하여 BLV type은 각 비유기에 영향을 미치지 않았으며, 산차는 30일 이상에서 영향을 미쳤고, 분만월은 전 유기에 걸쳐 영향을 미치는 것으로 나타났다. 기타 유성분도 비유기에 따라서 각 각 다른 영향을 받는 것으로 나타났다.

The present study was carried out to investigate effects of various factors such as sire, bovine leukemia virus(BLV) carrier/non-carrier, parity, calving month and lactation periods on somatic cell count(SCC) and milk components in dairy cows. The animals calved from January 2001 to March 2004. Milk samples were collected every 30 $\pm$ 5 days in milk(DlM), and somatic cell count and milk components were analysed by Somascope MK2/Lactoscope FTIR Bovine Leukemia Virus(BLV) was detected by ELISA method. The lactation periods were divided into five periods; (1) 30DIM, (2) 31 to 6ODIM, (3) 61 to 120DIM, (4) 121 to 180DIM, and (5) more than 180DIM. The level of SCC and milk components in all lactation periods were significantly affected by sire, parity, calving month, lactation period and BLV carrier/non-carrier. The results suggest that BLV carrier/non-carrier analysis in a herd may be necessary if milk quality is low owing to a high SCC. BLV carrier/non-carrier did not affect milk protein content for all lactation periods.

키워드

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피인용 문헌

  1. Development of Rapid Somatic Cell Counting Method by Using Dye Adding NIR Spectroscopy vol.28, pp.1, 2008, https://doi.org/10.5851/kosfa.2008.28.1.63