Investigation of mastitis problems on farms

Fetrow, 2000, Mastitis: an economic consideration, 3

Ott, 2000, Costs of herd-level production losses associated with subclinical mastitis in US Dairy Cows, 152

Ruegg PL. Milk quality premiums received by Wisconsin dairy farmers participating in directed milk quality programs [abstract 562]. In: Proceedings of the 9th Symposium of the International Society of Veterinary Epidemiology and Economics, Breckenridge (CO); 2000.

Ruegg, 2001, Activities and outcomes of Wisconsin dairy farms participating in team-based milk quality programs

Ruegg, 1993, Use of basic epidemiologic principles in dairy production medicine, Comp Cont Educ Pract Vet, 15, 309

Ruegg, 2000, The relationship between antibiotic residues violations and somatic cell counts in Wisconsin dairy herds, J Dairy Sci, 83, 2805, 10.3168/jds.S0022-0302(00)75178-2

Ott, 2000, Bulk tank somatic cell counts of milk in 21 states, 1998, 101

Reneau, 2001, Record systems and herd monitoring in production-oriented health management programs, 107

Schepers, 1997, Estimate of variance components for CC to determine thresholds for uninfected quarters, J Dairy Sci, 80, 1833, 10.3168/jds.S0022-0302(97)76118-6

Beaudeau, 1995, Effect of disease on length of productive life of French Holstein dairy cows assessed by survival analysis, J Dairy Sci, 78, 103, 10.3168/jds.S0022-0302(95)76621-8

Esslemont, 1996, Incidence of production diseases and other health problems in a group of dairy herds in England, Vet Rec, 139, 486, 10.1136/vr.139.20.486

Frei, 1997, The production system and disease incidence in a national random longitudinal study of Swiss dairy herds, Prev Vet Med, 32, 1, 10.1016/S0167-5877(97)00020-2

Grohn, 1995, The association between previous 305-day milk yield and disease in New York State dairy cows, J Dairy Sci, 78, 1693, 10.3168/jds.S0022-0302(95)76794-7

Grohn, 1998, Effect of diseases on the culling of Holstein dairy cows in New York State, J Dairy Sci, 81, 966, 10.3168/jds.S0022-0302(98)75657-7

National Animal Health Monitoring System. Part 1: reference of 1996 dairy management practices. Fort Collins (CO): US Dept. of Agriculture; 1996. Available at: www.aphis.usda.gov/vs/ceah/cahm. Accessed July 31, 2002.

Rajala, 1998, Disease occurrence and risk factor analysis in Finnish Ayrshire cows, Acta Vet Scand, 39, 1, 10.1186/BF03547802

van Dorp, 1999, An epidemiologic study of disease in 32 registered Holstein dairy herds in British Columbia, Can J Vet Res, 63, 185

Whitaker, 2000, Disposal and disease rates in 340 British dairy herds, Vet Rec, 146, 363, 10.1136/vr.146.13.363

Payne, 1999, On-farm quality assurance programs: a survey of producer and industry leader opinions, J Dairy Sci, 82, 2224, 10.3168/jds.S0022-0302(99)75469-X

Makovec, 2002, Characteristics of milk samples submitted for culture in Wisconsin from 1994–2001, Int J Dairy Sci, 85, 85

Sears, 1991, Microbiological results from milk samples obtained premilking and postmilking, J Dairy Sci, 74, 4183, 10.3168/jds.S0022-0302(91)78613-X

Sears, 1990, Shedding pattern of S aureus for the diagnosis of bovine intramammary infections, J Dairy Sci, 73, 2785, 10.3168/jds.S0022-0302(90)78964-3

Lam, 1996, Use of composite milk samples for diagnosis of S aureus mastitis in dairy cattle, J Am Vet Med Assoc, 208, 1705, 10.2460/javma.1996.208.10.1705

Zecconi, 1997, Recovery of S aureus from centrifuged milk samples, J Dairy Sci, 80, 3058, 10.3168/jds.S0022-0302(97)76273-8

Dinsmore, 1991, Evaluation of methods for the diagnosis of Streptococcus agalactiae intramammary infections in dairy cattle, J Dairy Sci, 74, 1521, 10.3168/jds.S0022-0302(91)78312-4

Lee, 1980, Identification properties, and differential counts of cell populations using electron microscopy of dry cows secretions, colostrums and milk from normal cows, J Dairy Res, 47, 39, 10.1017/S0022029900020860

Harmon, 2001, Somatic cell counts: a primer, 3

Hortet, 1998, Loss in milk yield and related composition changes resulting from clinical mastitis in dairy cows, Prev Vet Med, 37, 1, 10.1016/S0167-5877(98)00104-4

Dohoo, 2001, Setting SCC cutpoints for cow and herd interpretation, 10

Mcdermott, 1982, Predictability by somatic cell counts related to prevalence of intramammary infection within herds, J Dairy Sci, 65, 1535, 10.3168/jds.S0022-0302(82)82378-3

Timms, 1987, Dynamics and significance of coagulase-negative staphylococcal intramammary infections, J Dairy Sci, 70, 2648, 10.3168/jds.S0022-0302(87)80335-1

Sargeant, 2001, Sensitivity and specificity of somatic cell count and California Mastitis Test for identifying intramammary infection in early lactation, J Dairy Sci, 84, 2018, 10.3168/jds.S0022-0302(01)74645-0

Schalm, 1957, Experiments and observations leading to development of the California Mastitis Test, J Am Vet Med Assoc, 130, 199

Barnum, 1961, The use of the California Mastitis test for the detection of bovine mastitis, Can Vet J, 2, 83

Brookbanks, 1966, The correlation between California Mastitis Test results and the presence of mastitis pathogens in composite milk samples, N Z Vet J, 14, 89, 10.1080/00480169.1966.33641

Painter, 1965, Detection efficiency of mastitis screening tests, J Milk Food Tech, 28, 5, 10.4315/0022-2747-28.1.5

Wesen, 1968, Relationship between California Mastitis Test reaction and bacteriological analyses of stripping samples, J Dairy Sci, 51, 679, 10.3168/jds.S0022-0302(68)87055-9

Nielen, 1995, Comparison of analysis techniques for on-line detection of clinical mastitis, J Dairy Sci, 78, 1050, 10.3168/jds.S0022-0302(95)76721-2

Kitchen, 1980, Mastitis diagnostic tests to estimate mammary gland epithelial cell damage, J Dairy Sci, 63, 978, 10.3168/jds.S0022-0302(80)83035-9

Hamann, 1998

Neilen, 1992, Electrical conductivity of milk: measurement, modifiers, and meta analysis of mastitis detection performance, J Dairy Sci, 75, 606, 10.3168/jds.S0022-0302(92)77798-4

Musser, 1998, Evaluation of a hand-held electrical conductivity meter for detection of subclinical mastitis in cattle, Am J Vet Res, 59, 1087, 10.2460/ajvr.1998.59.09.1087

Hillerton, 1991, Identification of subclinical mastitis with a hand-held electrical conductivity meter, Vet Rec, 128, 513, 10.1136/vr.128.22.513

Milner, 1996, Detection of clinical mastitis by changes in electrical conductivity of foremilk before visible changes in milk, J Dairy Sci, 79, 83, 10.3168/jds.S0022-0302(96)76337-3

Seguya, 2000, An evaluation of a hand-held electrical resistance meter for the diagnosis of bovine subclinical mastitis in late lactation under Australian conditions, Aus Vet J, 78, 608, 10.1111/j.1751-0813.2000.tb11931.x

Reneau, 1993, Clinical mastitis records in production medicine programs, Comp Cont Educ Pract Vet, 15, 497

Barkema, 1998, Management practices associated with low, medium, and high somatic cell counts in bulk milk, J Dairy Sci, 81, 1917, 10.3168/jds.S0022-0302(98)75764-9

Bradley, 1999, The potential impact of the dry period on environmental mastitis—a preliminary assessment of the UK field situation, 106

Centers for Disease Control and Prevention. The EpiInfo program. Available at: http://www.edc.gov.epiinfo/ei6.htm. Accessed January 23, 2003.