Culling decisions of dairy farmers during a 3-year Salmonella control study

Preventive Veterinary Medicine

Volumn 100, Issue 1, 2011, Pages 29-37

  Nielsen, L R ^a   Dohoo, I ^b  

^a UNIVERSITY OF COPENHAGEN   (Denmark)

^b UNIVERSITY OF PRINCE EDWARD ISLAND   (Canada)

Author keywords

Cattle; Control; Culling; Salmonella; Survival analysis

Indexed keywords

BACTERIUM ANTIBODY;

ANIMAL; ANIMAL DISEASE; ANIMAL SALMONELLOSIS; ARTICLE; BLOOD; CATTLE; CATTLE DISEASE; DENMARK; EPIDEMIOLOGY; FEMALE; HETEROZYGOTE; IMMUNOLOGY; ISOLATION AND PURIFICATION; LONGITUDINAL STUDY; METHODOLOGY; MICROBIOLOGY; MILK; MULTIVARIATE ANALYSIS; PROPORTIONAL HAZARDS MODEL; RISK ASSESSMENT; SALMONELLA ENTERITIDIS;

ANIMALS; ANTIBODIES, BACTERIAL; CARRIER STATE; CATTLE; CATTLE DISEASES; DENMARK; FEMALE; LONGITUDINAL STUDIES; MILK; MULTIVARIATE ANALYSIS; PROPORTIONAL HAZARDS MODELS; RISK ASSESSMENT; SALMONELLA ENTERITIDIS; SALMONELLA INFECTIONS, ANIMAL; SEROEPIDEMIOLOGIC STUDIES;

ANIMALIA; BACTERIA (MICROORGANISMS); BOS; IRIS PSEUDACORUS; SALMONELLA; SALMONELLA ENTERICA; SALMONELLA ENTERICA SUBSP. ENTERICA; SALMONELLA ENTERICA SUBSP. ENTERICA SEROVAR DUBLIN;

EID: 79955521291     PISSN: 01675877     EISSN: None     Source Type: Journal    
DOI: 10.1016/j.prevetmed.2011.03.001     Document Type: Article

References (33)

1. Anonymous Annual Report on Zoonoses in Denmark 2009 2010, 1-56. Danish Zoonosis Centre, National Food Institute, Technical University of Denmark. B. Helwigh, A.L. Krogh (Eds.).
2. Beaudeau F., Seegers H., Ducrocq V., Fourichon C., Bareille N. Effect of health disorders on culling in dairy cows: a review and a critical discussion. Ann. Zootech. 2000, 49:293-311.
3. Collins M.T., Eggleston V., Manning E.J.B. Successful control of Johne's disease in nine dairy herds: results of a six-year field trial. J. Dairy Sci. 2010, 93:1638-1643.
4. Cramer G., Lissemore K.D., Guard C.L., Leslie K.E., Kelton D.F. The association between foot lesions and culling risk in Ontario Holstein cows. J. Dairy Sci. 2009, 92:2572-2579.
5. Dohoo I., Martin W., Stryhn H. Veterinary Epidemiologic Research 2009, Margaret McPike VER Inc., Charlottetown, Prince Edwards Island, Canada. 2nd edition.
6. Ellis-Iversen J., Cook A.J., Watson E., Nielen M., Larkin L., Wooldridge M., Hogeveen H. Perceptions, circumstances and motivators that influence implementation of zoonotic control programs on cattle farms. Prev. Vet. Med. 2010, 93:276-285.
7. Ellis-Iversen J., Smith R., Van Winden S., Paiba G., Watson E., Snow L., Cook A. Farm practices to control E. coli O157 in young cattle-a randomised controlled trial. Vet. Res. 2008, 39.
8. Helms M., Vastrup P., Gerner-Smidt P., Mølbak K. Short and long term mortality associated with foodborne bacterial gastrointestinal infections: registry based study. Br. Med. J. 2003, 326:357-361.
9. House J.K., Smith B.P., Dilling G.W., Roden L.D. Enzyme-linked immunosorbent assay for serologic detection of Salmonella dublin carriers on a large dairy. Am. J. Vet. Res. 1993, 54:1391-1399.
10. Jensen A.M., Kjeldsen A.M., Alban L. Control of Salmonella Dublin in 6 Danish dairy herds. A case study. Dan. Veterinærtidsskr. 2004, 87:26-36.
11. Jordan D., Nielsen L.R., Warnick L.D. Modelling a national programme for the control of foodborne pathogens in livestock: the case of Salmonella Dublin in the Danish cattle industry. Epidemiol. Infect. 2008, 136:1521-1536.
12. Konrad H., Smith B.P., Dilling G.W., House J.K. Production of Salmonella serogroup D (O9)-specific enzyme-linked immunosorbent assay antigen. Am. J. Vet. Res. 1994, 55:1647-1651.
13. Lomborg S., Agerholm J., Jensen A., Nielsen L. Effects of experimental immunosuppression in cattle with persistently high antibody levels to Salmonella Dublin lipopolysaccharide O-antigens. BMC Vet. Res. 2007, 3:17.
14. Nielsen, L.R., 2003. Salmonella Dublin in dairy cattle: use of diagnostic tests for investigation of risk factors and infection dynamics. PhD thesis. The Royal Veterinary and Agricultural University, pp. 1-219. Available at: (accessed March 9, 2011). http://www.iph.life.ku.dk/forskning/Salmonella/Publications.aspx.
15. Nielsen L.R., Ersbøll A.K. Age stratified validation of an indirect Salmonella Dublin serum ELISA for individual diagnosis in cattle. J. Vet. Diagn. Invest. 2004, 16:205-211.
16. Nielsen L.R., Ersbøll A.K. Factors associated with variation in bulk-tank-milk Salmonella Dublin ELISA ODC% in dairy herds. Prev. Vet. Med. 2005, 68:165-179.
17. Nielsen, L.R., Nielsen, S.S. A structured approach to control of Salmonella Dublin in 10 Danish dairy herds based on risk scoring and test-and-manage procedures. Food Res. Int., in press, doi:10.1016/j.foodres.2011.02.027.
18. Nielsen L.R., Toft N., Ersbøll A.K. Evaluation of an indirect serum ELISA and a bacteriological faecal culture test for diagnosis of Salmonella serotype Dublin in cattle using latent class models. J. Appl. Microbiol. 2004, 96:311-319.
19. Nielsen L.R., Warnick L.D., Greiner M. Risk factors for changing test classification in the Danish surveillance program for Salmonella in dairy herds. J. Dairy Sci. 2007, 90:2815-2825.
20. Nielsen S.S., Krogh M.A., Enevoldsen C. Time to the occurrence of a decline in milk production in cows with various paratuberculosis antibody profiles. J. Dairy Sci. 2009, 92:149-155.
21. Richardson A. The transmission of Salmonella dublin to calves from adult carrier cows. Vet. Rec. 1973, 92:112-115.
22. Richardson A., Watson W.A. A contribution to the epidemiology of Salmonella Dublin infection in cattle. Br. Vet. J. 1971, 127:173-182.
23. Royston P., Sauerbrei W. Multivariable Model-building. A Pragmatic Approach to Regression Analysis Based on Fractional Polynomials for Modelling Continuous Variables 2008, John Wiley & Sons Ltd., Chichester, England. P. Royston, W. Sauerbrei (Eds.).
24. Silvestre A.M., Petim-Batista F., Colaço J. The accuracy of seven mathematical functions in modeling dairy cattle lactation curves based on test-day records from varying sample schemes. J. Dairy Sci. 2006, 89:1813-1821.
25. Smith B.P., House J.K., Dilling G.W., Roden L.D., Spier S.J. Identification of Salmonella dublin carrier cattle. Proceedings of the International symposium Salmonella and Salmonellosis 1992, 225-230.
26. Smith B.P., Oliver D.G., Singh P., Dilling G., Marvin P.A., Ram B.P., Jang L.S., Sharkov N., Orsborn J.S. Detection of Salmonella dublin mammary gland infection in carrier cows, using an ELISA for antibody in milk or serum. Am. J. Vet. Res. 1989, 50:1352-1360.
27. Spier S.J., Smith B.P., Tyler J.W., Cullor J.S., Dilling G.W., Da Pfaff L. Use of ELISA for detection of immunoglobulins G and M that recognize Salmonella dublin lipopolysaccharide for prediction of carrier status in cattle. Am. J. Vet. Res. 1990, 51:1900-1904.
28. Vaessen M.A., Veling J., Frankena K., Graat E.A., Klunder T. Risk factors for Salmonella Dublin infection on dairy farms. Vet. Quart. 1998, 20:97-99.
29. van Schaik G., Schukken Y.H., Nielen M., Dijkhuizen A.A., Barkema H.W., Benedictus G. Probability of and risk factors for introduction of infectious diseases into Dutch SPF dairy farms: a cohort study. Prev. Vet. Med. 2002, 54:279-289.
30. Veling J., van Zijderveld F.G., Zijderveld-van Bemmel A.M., Barkema H.W., Schukken Y.H. Evaluation of three newly developed enzyme-linked immunosorbent assays and two agglutination tests for detecting Salmonella enterica subsp. enterica Serovar Dublin infections in dairy cattle. J. Clin. Microbiol. 2000, 38:4402-4407.
31. Warnick L.D., Nielsen L.R., Nielsen J., Greiner M. Simulation model estimates of test accuracy and predictive values for the Danish Salmonella surveillance program in dairy herds. Prev. Vet. Med. 2006, 77:284-303.
32. Wray C., Davies R.H. Salmonella infections in cattle. Salmonella in Domestic Animals 2000, 169-190. CABI Publishing, New York, New York State. C. Wray, A. Wray (Eds.).
33. Wray C., Wadsworth Q.C., Richards D.W., Morgan J.H. A three-year study of Salmonella Dublin infection in a closed dairy herd. Vet. Rec. 1989, 124:532-535.