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경남지역 젖소의 산유능력 검정성적과 MUN과의 비교분석 원문보기
Herd management and control of dairy cows by milk components and MUN concentration comparative analysis in Kyeong-nam

  • 저자

    유용상

  • 학위수여기관

    慶尙大學校 大學院

  • 학위구분

    국내석사

  • 학과

    수의학과

  • 지도교수

  • 발행년도

    2004

  • 총페이지

    56p.

  • 키워드

    경남지역 젖소 산유능력 검정성적 MUN 수의학;

  • 언어

    kor

  • 원문 URL

    http://www.riss.kr/link?id=T10060157&outLink=K  

  • 초록

    The purpose of this study was to herd management and control of dairy cows by milk components and milk urea nitrogen(MUN) analysis in Kyeong nam. Milk components analysis carried out milk yield(MY), milk fat(MF), milk protein(MP), milk urea nitrogen(MUN) and somatic cell count(SCC) but, milk solid(MS), day of non-pregnant condition(DNPC), and days of primipara(DPRI) involved in report. Dairy farms were divided High group, middle group, low group according to the standard records for milk components. Examination records were divided by farm, parity, year, season and month, the number of samples were 28,957. Feeding management practice and the prediction for the risk possibility of productive disease such as reproductive and metabolic disorders by evaluating fat, protein, solids, and MUN from individual cow milk in dairy herd. MUN and MP are increasingly used to as indicators of the protein-energy balance. Determination of MY, MF, MP, MS, and MUN was Milkoscan 4,000∼5,000 Serier(FOSS Electric Co., Copenhagen, Denmark). MUN standard concentration was 12-18(mg/dl) similar to blood urea nitrogen(BUN). Correlation coefficient of milk protein(MP) and milk solid(MS) was ascertain r=0.759. MUN concentration was ascertain 15.73±0.31(mg/dl) in five parity. SCC was ascertain 372.8±11.34 (thousand unit) and DNPC was ascertain 155.3±5.15(days) in seven parity. Experiment result of MUN level was ascertain decrease 14.64±0.30(mg/dl) in summer season. Thereby MUN concentration was above 18mg/dl and MP concentration was below 3.0%, day of non-pregnancy condition by level of MUN and MP was ascertain 94.1±10.77 (p


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