한국임상수의학회지 (Journal of Veterinary Clinics)

  • 제24권2호
  • /
  • Pages.172-176
  • /
  • 2007
  • /
  • 1598-298X(pISSN)
  • /
  • 2384-0749(eISSN)
한국임상수의학회 (The Korean Society of Veterinary Clinics)
권호 표지

유방과 유두의 형태와 체세포수에 대한 연구

Study on the Relationship between Udder and Teat Characteristics and Somatic Cell Count

  • Lee, Jeong-Chi (Department of Veterinary Nurse and pets Sciences, Seojeong College) ;
  • Lee, Chai-Yong (College of Veterinary Medicine, Chonnam National University)
  • 발행 : 2007.06.30
PDF 다운로드
⟨ 이전 논문 다음 논문 ⟩

초록

The objective of this study was to determine the relationship between udder and teat characteristics and somatic cell count (SCC). A total of 749 (73.1%) milk samples from 1,024 quarters of 259 Holstein cows contained less than 200,000 somatic cells/ml, while 132 (12.9%) quarters contained more than 500,000 somatic cells/ml. Prior to data analysis, somatic cell counts were transformed to natural logarithm. The mean SCS {$log_e(SCS/10^3)$} of milk samples from the front quarters was lower than milk samples from the rear quarters. The highest SCS was observed from cows with the step-shaped udder and the pear-shaped teats, respectively. Increased SCS was observed from cows with large teat diameter, short teat length, short distance between the teat tip to floor (p<0.05) and with increase in parity, respectively.

키워드

참고문헌

  1. Adkinson RW, Ingawa KH, Blouin DC, Nickerson SC. Distribution of clinical mastitis among quarters of bovine udder. J Dairy Sci 1993; 76: 3453-3459 https://doi.org/10.3168/jds.S0022-0302(93)77684-5
  2. Bakken G. Relationships between udder and teat morphology, mastitis, and milk production in Norwegian Red cattle. Acta Agric Scand 1981; 31: 438-444 https://doi.org/10.1080/00015128109435725
  3. Bodoh GW, Battista WJ, Schultz LH, Johnston Jr RP. Variation in somatic cell counts in dairy herd improvement milk samples. J Dairy Sci 1976; 59: 1119-1123 https://doi.org/10.3168/jds.S0022-0302(76)84331-7
  4. Chrystal MA, Seykora AJ, Hansen LB. Heritabilities of teat end shape and teat diameter and their relationships with somatic cell score. J Dairy Sci 1999; 82: 2017-2022 https://doi.org/10.3168/jds.S0022-0302(99)75439-1
  5. Deluyker HA, Gay JM, Weaver LD. Interrelationships of somatic cell count, mastitis, and milk yield in a low somatic cell count herd. J Dairy Sci 1993; 76: 3445-3452 https://doi.org/10.3168/jds.S0022-0302(93)77683-3
  6. Harmon RJ. Physiology of mastitis and factors affecting somatic cell counts. J Dairy Sci 1994; 77: 2103-2112 https://doi.org/10.3168/jds.S0022-0302(94)77153-8
  7. Jain NC. Common mammary pathogens and factors in infection and mastitis. J Dairy Sci 1979; 62: 128-134 https://doi.org/10.3168/jds.S0022-0302(79)83214-2
  8. Kehrli ME Jr, Shuster, DE. Factors affecting milk somatic cells and their role in health of the bovine mammary gland. J Dairy Sci 1979; 77: 619-627 https://doi.org/10.3168/jds.S0022-0302(94)76992-7
  9. Kennedy BW, Sethar MS, Moxley JE, Downey BR. Heritability of somatic cell count and its relationship with milk yield and composition in Holsteins. J Dairy Sci 1982; 65: 843-847 https://doi.org/10.3168/jds.S0022-0302(82)82274-1
  10. Pyorala S. Indicators of inflammation in the diagnosis of mastitis. Vet Res 2003; 34: 565-578 https://doi.org/10.1051/vetres:2003026
  11. Rathore AK. Teat shape and production associated with opening and prolapse of the teat orifice in Friesian cows. Br Vet J 1977; 133: 258-262 https://doi.org/10.1016/S0007-1935(17)34087-3
  12. Rogers GW, Hargrove GL. Absence of quadratic relationships between genetic evaluation for somatic cell scores and udder linear traits. J Dairy Sci 1993; 76: 3601-3606 https://doi.org/10.3168/jds.S0022-0302(93)77700-0
  13. Rogers GW, Spencer SB. Relationships among udder and teat morphology and milking characteristics. J Dairy Sci 1991; 74: 4189-4194 https://doi.org/10.3168/jds.S0022-0302(91)78614-1
  14. Ruban Yu, Vard A. Selection of cows for resistance to mastitis. Molochnoe i Myasnoe Skotovodstvo 1991; 5: 33-34
  15. Seykora AJ, McDaniel BT. Udder and teat morphology related to mastitis resistance: a review. J Dairy Sci 1985; 68: 2087-2093 https://doi.org/10.3168/jds.S0022-0302(85)81072-9
  16. Seykorya AJ, McDaniel BT. Genetics statistics and relationships of teat and udder traits, somatic cell counts and milk production. J Dairy Sci 1986; 69: 2395-2407 https://doi.org/10.3168/jds.S0022-0302(86)80679-8
  17. Shpigel NY, Winkler M, Ziv G, Saran A. Clinical, bacteriological and epidemiological aspects of clinical mastitis in Israeli dairy herds. Prey Vet Med 1998; 35: 1-9 https://doi.org/10.1016/S0167-5877(98)00052-X
  18. Singh PJ, Singh KB, Jand SK, Dhingra PN, Nauriyal DC. Incidence, etiology and antibiogram of pathogens is이ated from subclinical mastitis in machine milked cows. Indian J Dairy Sci 1994; 47: 730-733
  19. Slettbakk T, Jarstad A, Farver TB, Holmes JC. Impact of milking characteristics and morphology of udder and teats on clinical mastitis in first-and second-lactation Norwegian cattle. Prey Vet Med 1995; 24: 235-244 https://doi.org/10.1016/0167-5877(95)00490-N
  20. 이정치, 이정길, 이채용. 국내 젖소의 유방 특성에 관한 연 구. 대한수의학회지 2004; 44: 143-150