Journal of Animal Science and Technology

Korean Society of Animal Sciences and Technology (한국축산학회)
권호 표지
DOI QR코드

DOI QR Code

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

홀스타인 젖소의 비유시기별 체세포 수와 우유 성분에 미치는 제요인

  • 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)
  • Published : 2004.12.31
Download PDF
⟨ Previous Next ⟩

Abstract

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.

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.

Keywords

References

  1. Ali, A. K. A. and Shook, G. E. 1980. An optimum transformation for somatic cell concentration in milk. J. Dairy Sci. 63:487.
  2. Detilleux, J. C., Kehli Jr. M. E., Freeman, A. E., Fox, L. K. and Kelley, D. H. 1995. Mastitis of Periparturient Holstein Cattle : A Phenoypic and Genetic Study. J. Dairy Sci. 78:2285.
  3. Godden S. M., Lissemore, K. D., Kelton, D. F., Leslie, K. E., Walton, J. S. and Lumsden, J. H. 2001. Relationships Between Milk Urea Concentrations and Nutritional Management, Production, and Economic Variables in Ontario Dairy Herds. J. Dairy Sci. 84:1128.
  4. Heringstad, B., Chang, Y. M., Gialnola, D. and Klemetsdal, G. 2003. Genetic Analysis of Longitudinal Trajectory of Clinical Mastitis in First-Lactation Norwegian Cattle. J. Dairy Sci. 76:2676.
  5. http://ianrpubs.unl.edu/dairy/g1151.htm. The Somatic Cell Count and Milk Quality.
  6. http://wmv.ext.vt.edu/pubs/dairy/404-228/404-228.htrnl. Guidelines for Using the DHI Somatic Cell Count Program.
  7. http://www.feedtech.pe.kr/mun1.htm.
  8. http://www.nongmin.net/dcic/table/table_5.html.
  9. Jacobs R. M., Heeney, J. L., Godkin, M. A., Leslie, K. E., Taylor, J. A., Davies, C. and Valli, V. E. O. 1991. Production and Relative Variables in bovine Leukemia virus-infected cows. Preventive Veterinary Medicine, 15:463.
  10. Kehli, Jr. M. E. and Shuster D. E. 1994. Factors affecting milk somatic cells and their role in health of bovine mammary gland. J. Dairy Sci. 77:619.
  11. Kulberg, S., Storset, A. K., Heringstad, B. and Larsen, H. J. 2002. Reduced Levels of Total Leukocytes and Neutophils in Norwegian Cattle Selected for Decreased Mastitis Incidence. J. Dairy Sci. 85:3470.
  12. Lund, M. S., Jensen, J. and Pertersen, P. H. 1999. Estimation of genetic and phenotypic parameters for clinical mastitis, somatic cell production deviance, and protein yield in dairy cattle using Gibbs sampling. J. Dairy Sci. 82:1045.
  13. Marcus, E. and Kehrli, Jr. 2002. Importance of Functional Mammary Gland Immunity during Times of Stress. 2002. National Mastitis Council Annual Meeting Proceedings.
  14. Michael, T. S. Heald, David Waltner-Toews, Robert Jacobs, M. and Bruce McNab, W. 1992. The prevalence of anti-bovine leukemia virus antibodies in dairy cows and associations with farm management practices, production and culling in Ontario. Preventive Veterinary Medicine 14(1-2):45.
  15. Philipsson, J., RaJ, G. and Berglund, B. 1995. Somatic cell count as a selection criterion for mastitis resistance in dairy cattle. Livestock Prod. Sci. 41:195.
  16. Poso, J. and Mntisaary, E. A. 1996. Relationships between clinical mastitis, somatic cell score, and production for the first three lactations of Finnish Ayshire. J. Dairy Sci. 79:1284.
  17. Rogers, G. W., Hargrover, G. L. and Cooper, J. B. 1995. Correlation among somatic cell score of milk within and across lactation and linear type traits of Jersey. J. Dairy Sci. 78:914.
  18. Samore, A. S., Schneidder, M. del P., Canvesi, F., Bangnato, A. and Groen, A. F. 2003. Relationship between somatic cell count and functional longevity assessed using survival analysis in Italian Holstein-Friesian cows. Livestock Production Science. 80:211.
  19. Sandra L. Rodriguez-Zas, Daniel Gianola, George and Shook, E. 2000. Evaluation of models for somatic cell score lactation patterns in Holsteins. Livestock Production Science. 67:19.
  20. Schmidt, G. H., VanVleck, L. D. and M. F. Hutjens. 1988. Principles of dairy science. 2nd. ed. p. 53
  21. Serrano, M., Prez-Guzmn, M. D., Montoro, V. and Jurado, J. J. 2003. Genetic analysis of somatic cell count and milk traits in Manchega ewes Mean Lactation and Test-day Approaches. Livestock Production Science. 84:1.
  22. Smith, J. W., Chapa, A. M., Gilson, W. D. and Ely, L. O. 2002. Somatic Cell Count Benchmarks. http://pubs.caes.ugaedu/caespubs/pubs/PDF/b1194.pdf.
  23. Sendergaard, E., Srensen, M. K., Mao, I. L. and Jensen, J. 2002. Genetic parameters of production, fed intake, body wight, body composition, and udder health in lactating dairy cows. livestock Production Science. 77:23.
  24. Swanson, G. and Mrode, R. 2001. Reduction in Mastitis Incidence from Selection for Reduced Somatic Cell Counts. Proceeding of the British Mastitis Conference. pp. 69-77.
  25. Thiel, C. C. and Dodd, F. H. 1983. Machine Milking. Technical Bulletin 1. The National Institute for research in Dairying, Reading, England. The Hannah Research Institute, Ayr, Scotland.
  26. VanRaden, P. M. and Sanders, A. H. 2003. Economic Merit of Crossbred and Purebred US Dairy Cattle. J. Dairy Sci. 86:1036.
  27. Wellenberg, G. J., van der Poel, W. H. M. and Van Oirschot, J. T. 2002. Viral infections and bovine mastitis a review. Veterinary Microbiology. 88:27.
  28. Weller, J. I., Saran, A. and Zeliger, Y. 1992. Genetic and Environmental relationships among somatic cell count, bacterial infection, and clinical mastitis. J. Dairy Sci. 75:2532.
  29. Yang, Da. and Roger D. S., Stewart, J. A. and Lewin, H. A. 1993. Milk and fat yields decline in Bovine Leukemia Virus-infected Holstein Cattle with Persistent lymphocytosis. Proc. Natl. Aca. Sci., USA. 90:6538.
  30. 권응기, 김현섭, 정하연, 서국현, 이왕식, 안병석, 김준식, 나기준, 남기택. 2002. 고품질 원유 생산을 위한 사양관리 기술 개발. 축산시험연구보고서. 축산기술연구소
  31. 서국현. 2004. Bovin Leukemia Virus 청정우군의 확립에 관한 연구. 전남대학교 대학원
  32. 안병석, 정하연, 최유림, 전병순, 김현섭, 서국현, 김준식. 2001. Holstein 종 젖소의 유기별 Somatic Cell Score에 미치는 제 요인효과 추정. 한국동물자원과학회지. 43(5):623
  33. 이성모, 김정임, 이승환, 김동원, 최병렬, 2001. 유성분 분석을 통한 젖소 영양상태 및 개체관리에 관한 연구. 대한수의학회지. 41(2):243
  34. 전병순. 2000. 홀스타인종의 BoLA DRB3 exon2의 BLV 저항성 계통과 산유형질간의 연관성에 관한 연구. 충남대학교 석사학위논문

Cited by

  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