DOI QR코드

DOI QR Code

Classification of acute clinical mastitis on the base of vital signs and complete blood count test in dairy cows

  • Hur, Tai-Young (National Institute of Animal Science, Rural Development Administration (RDA)) ;
  • Kang, Seog-Jin (National Institute of Animal Science, Rural Development Administration (RDA)) ;
  • Jung, Young-Hun (National Institute of Animal Science, Rural Development Administration (RDA)) ;
  • Lee, Hyun-June (National Institute of Animal Science, Rural Development Administration (RDA)) ;
  • Ki, Kwang-Seok (National Institute of Animal Science, Rural Development Administration (RDA)) ;
  • Choe, Chang-Yong (National Institute of Animal Science, Rural Development Administration (RDA)) ;
  • Suh, Guk-Hyun (College of Veterinary Medicine, Chonnam National University)
  • 투고 : 2012.09.07
  • 심사 : 2012.12.11
  • 발행 : 2013.03.31

초록

This study was carried out to evaluate the diagnosis of acute clinical mastitis (ACM) which was based on the vital signs and complete blood count (CBC) tests in dairy cows. Twenty eight dairy cows diagnosed with ACM, were selected for the study between Jan 2003 and July 2006 in the National Institute of Animal Science. Based on their vital signs (rectal temperature, depression, rumen contraction and, dehydration status), ACM was divided into three different classes; mild, moderate and severe forms. In addition, ACM cows were subjected to CBC tests for further diagnosis of ACM. Of the 27 dairy cows diagnosed with ACM, 3 cows were determined to have a mild form, while moderate and sever forms were each observed in twelve cows. Among of them, 4 cows died, 5 cows were culled and 18 cows were recovered. In the mild form, all haematological parameters were comparable with normal values. However, leukopenia, due to neutropenia and lymphocytopenia, appeared characteristically in the moderate and severe forms. Using the observation of vital signs in conjunction with CBC tests, the diagnosis of ACM is more accurate, and is helpful in making decisions of whether treatment or culling of dairy cows infected with ACM is most appropriate.

키워드

참고문헌

  1. Bleul U, Sacher K, Corti S, Braun U. Clinical findings in 56 cows with toxic mastitis. Vet Rec 2006, 159, 677-679. https://doi.org/10.1136/vr.159.20.677
  2. Bradley AJ, Green MJ. A study of the incidence and significance of intramammary enterobacterial infections acquired during the dry period. J Dairy Sci 2000, 83, 1957-1965. https://doi.org/10.3168/jds.S0022-0302(00)75072-7
  3. Cebra CK, Garry FB, Dinsmore RP. Naturally occurring acute coliform mastitis in Holstein cattle. J Vet Intern Med 1996, 10, 252-257. https://doi.org/10.1111/j.1939-1676.1996.tb02058.x
  4. Green MJ, Cripps PJ, Green LE. Prognostic indicators for toxic mastitis in dairy cows. Vet Rec 1998, 143, 127-130. https://doi.org/10.1136/vr.143.5.127
  5. Jones GF, Ward GE. Cause, occurrence, and clinical signs of mastitis and anorexia in cows in a Wisconsin study. J Am Vet Med Assoc 1989, 195, 1108-1113.
  6. Menzies FD, Gordon AW, McBride SH, Goodall EA. Risk factors for toxic mastitis in cows. Vet Rec 2003, 152, 319-322. https://doi.org/10.1136/vr.152.11.319
  7. Menzies FD, McBride SH, McDowell SW, McCoy MA, McConnell W, Bell C. Clinical and laboratory findings in cases of toxic mastitis in cows in Northern Ireland. Vet Rec 2000, 147, 123-128. https://doi.org/10.1136/vr.147.5.123
  8. Morin DE, Shanks RD, McCoy GC. Comparison of antibiotic administration in conjunction with supportive measures versus supportive measures alone for treatment of dairy cows with clinical mastitis. J Am Vet Med Assoc 1998, 213, 676-684.
  9. Roberson JR, Warnick LD, Moore G. Mild to moderate clinical mastitis: efficacy of intramammary amoxicillin, frequent milk-out, a combined intramammary amoxicillin, and frequent milk-out treatment versus no treatment. J Dairy Sci 2004, 87, 583-592. https://doi.org/10.3168/jds.S0022-0302(04)73200-2
  10. Smith GW, Constable PD, Morin DE. Ability of hematologic and serum biochemical variables to differentiate gram-negative and gram-positive mastitis in dairy cows. J Vet Intern Med 2001, 15, 394-400. https://doi.org/10.1111/j.1939-1676.2001.tb02335.x
  11. Tadich NA, Carey A, Porter R, Ridley J, Green MJ, Green LE. Case control study of risk factors for toxic mastitis in 26 dairy herds. Vet Rec 1998, 143, 362-365. https://doi.org/10.1136/vr.143.13.362
  12. Wenz JR, Barrington GM, Garry FB, Dinsmore RP, Callan RJ. Use of systemic disease signs to assess disease severity in dairy cows with acute coliform mastitis. J Am Vet Med Assoc 2001, 218, 567-572. https://doi.org/10.2460/javma.2001.218.567
  13. Wenz JR, Barrington GM, Garry FB, McSweeney KD, Dinsmore RP, Goodell G, Callan RJ. Bacteremia associated with naturally occuring acute coliform mastitis in dairy cows. J Am Vet Med Assoc 2001, 219, 976-981. https://doi.org/10.2460/javma.2001.219.976
  14. Wenz JR, Garry FB, Barrington GM. Comparison of disease severity scoring systems for dairy cattle with acute coliform mastitis. J Am Vet Med Assoc 2006, 229, 259-262. https://doi.org/10.2460/javma.229.2.259