Evaluation of a hand-held electrical conductivity meter for detection of subclinical mastitis in cattle

American Journal of Veterinary Research

Volumn 59, Issue 9, 1998, Pages 1087-1091

  Musser, Jeffrey M B ^a   Anderson, Kevin L ^a   Caballero, Magaly ^b   Amaya, Daniel ^a   Maroto Puga, Jorge ^c  

^a NORTH CAROLINA STATE UNIVERSITY   (United States)

^b UNIVERSIDAD NACIONAL   (Costa Rica)

^c Ciudad Quesada   (Costa Rica)

Author keywords

[No Author keywords available]

Indexed keywords

ANIMAL; ANIMAL DISEASE; ARTICLE; CATTLE; CATTLE DISEASE; CHEMISTRY; CORYNEBACTERIUM; DAIRYING; ELECTRIC CONDUCTIVITY; ENTEROBACTER; EQUIPMENT; ESCHERICHIA COLI; FEMALE; INSTRUMENTATION; ISOLATION AND PURIFICATION; KLEBSIELLA; MICROBIOLOGY; MILK; PSEUDOMONAS; STAPHYLOCOCCUS; STREPTOCOCCUS;

ANIMALS; CATTLE; CORYNEBACTERIUM; DAIRYING; DIAGNOSTIC EQUIPMENT; ELECTRIC CONDUCTIVITY; ENTEROBACTER; ESCHERICHIA COLI; FEMALE; KLEBSIELLA; MASTITIS, BOVINE; MILK; PSEUDOMONAS; STAPHYLOCOCCUS; STREPTOCOCCUS;

EID: 0032161873     PISSN: 00029645     EISSN: None     Source Type: Journal    
DOI: None     Document Type: Article

References (26)

1. Yamagata M, Goodger WJ, Weaver L, et al. The economic benefit of treating subclinical Streptococcus agalactiae mastitis in lactating cows. J Am Vet Med Assoc 1987;191:1556-1561.
2. Fetrow J. Subclinical mastitis: biology and economics. Compend Contin Educ Pract Vet 1980;11:s223-s233.
3. Nielen M, Deluyker H, Schukken YH, et al. Electrical conductivity of milk: measurement, modifiers, and meta analysis of mastitis detection performance. J Dairy Sci 1992;75:606-614.
4. Peaker M. The electrical conductivity of milk for the detection of subclinical mastitis in cows: comparison of various methods of handling conductivity data with the use of cell counts and bacteriological examination. Br Vet J 1978;134:308-314.
5. Linzell JL, Peaker M, Rowell JG. Electrical conductivity of foremilk for detecting subclinical mastitis in cows. J Agric Sci 1974; 83:309-325.
6. Oshima M. Detection of abnormal quarter milk by the quarter difference of the electrical conductivity and its theoretical basis. Jpn Agri Res Q 1977;11:239-245.
7. Hillerton JE, Walton AW. Identification of subclinical mastitis with a hand-held electrical conductivity meter. Vet Rec 1991; 123:513-515.
8. McDaniel BT, Anderson KL, Wilk JC. Evaluation of simple, quick and inexpensive cowside tests to identify subclinical mastitis infections. Department of animal science annual report. Raleigh, NC: College of Agriculture and Life Sciences, North Carolina State University, 1994.
9. Schultze WD. Development in mastitis detection, in Proceedings. 25th Natl Mast Counc 1986;24-35.
10. Oshima M. On the electrical conductivity criteria to be used to detect compositionally abnormal milk due to presumed subclinical mastitis. Kiel Milchwirtsch Forschungsber 1985;37:360-363.
11. Okigbo LM, Sheliah MA, Richardson GH, et al. Portable conductivity meter for detecting abnormal milk. J Dairy Sci 1984; 67:1510-1516.
12. Linzell JL, Peaker M. Efficacy of the measurement of the electrical conductivity of milk for the detection of subclinical mastitis in cows; detection of infected cows at a single visit. Br Vet J 1975;131:447-161.
13. Notsuki L, Ichikawa T, Nakano T, et al. Diagnostic significance of variation in conductivity during milking, in Proceedings. 5th World Conf Anim Prod 1983;891-892.
14. Nielen M, Schukken YH, Brand A, et al. Detection of subclinical mastitis from on-line milking parlour data. J Dairy Sci 1995; 78:1039-1049.
15. Oshima M, Yoshida T, Koyama K, et al. A method for assessing loss in milk yield due to subclinical mastitis. J Dairy Res 1990;57:319-324.
16. Fernando RS, Spahr SL, Jaster EH. Comparison of electrical conductivity on milk with other indirect methods for detection of subclinical mastitis. J Dairy Sci 1983;68:449-456.
17. Yamamoto M, Kume T, Nakano M, et al. Automatic measurement of electrical conductivity for the detection of bovine mastitis. Kiel Milchwirtsch Forschungsber 1985;37:364-369.
18. Milner P, Page KL, Walton AW, et al. Detection of clinical mastitis by changes in electrical conductivity of foremilk before visible changes in milk. J Dairy Sci 1996;79:83-86.
19. National Mastitis Council Inc. Laboratory and field handbook on bovine mastitis. Fort Atkinson, Wis: WD Hoard & Sons Co, 1987;11-20.
20. de Graaf T, Dwinger RH. Estimation of milk production losses due to sub-clinical mastitis in dairy cattle in Costa Rica. Prev Vet Med 1996;26:215-222.
21. Sears PM, Smith BS, English PB, et al. Shedding pattern of Staphylococcus aureus from bovine intramammary infections. J Dairy Sci 1990;73:2785-2789.
22. Dinsmore RP, English PB, Gonzalez RN, et al. Evaluation of methods for the diagnosis of Streptococcus agalactiae intramammary infections in dairy cattle. J Dairy Sci 1991;74:1521-1526.
23. Fox LK, Gay JM. Contagious mastitis. Vet Clin North Am Food Anim Pract 1993;9:475-487.
24. Smith KL, Hogan JS, Schoenberger PS, et al. A practical look at environmental mastitis, in Proceedings. 26th Natl Mast Counc 1987;102-109.
25. Prentice JH. The conductivity of milk-the effect of the volume and degree of dispersion of the fat. J Dairy Res 1962;29:131-139.
26. Park YW. Interrelationships between somatic cell counts, electrical conductivity, bacteria counts, percent fat and protein in goat milk. Small Rum Res 1991;5:367-375.