1. bookVolume 18 (2018): Issue 1 (January 2018)
Journal Details
License
Format
Journal
eISSN
2300-8733
First Published
25 Nov 2011
Publication timeframe
4 times per year
Languages
English
access type Open Access

Three-year monitoring of paratuberculosis in dairy cattle by pooled faecal culture and individual prevalence estimation

Published Online: 30 Jan 2018
Volume & Issue: Volume 18 (2018) - Issue 1 (January 2018)
Page range: 99 - 111
Received: 27 Apr 2017
Accepted: 18 Sep 2017
Journal Details
License
Format
Journal
eISSN
2300-8733
First Published
25 Nov 2011
Publication timeframe
4 times per year
Languages
English
Abstract

The objective of this study was to assess the implementation of a three-year Mycobacterium avium subsp. paratuberculosis monitoring programme using pooled faecal culture in small and mediumsized dairy herds to classify them as infected or non-infected and apply proper hygiene and biosecurity measures. Over a three-year period, 35 dairy herds were analysed annually by faecal culture of ten pooled samples. In addition, proper hygiene and biosecurity protocols were implemented in the farms after the first testing round. Considering a herd as infected with at least one culture positive in any of the three years, the accumulated percentage of infected herds was 25.7%, 40% and 45.7%, for each year respectively. Assuming that all infected herds had been detected at the end of the study, the percentage of infected herds detected each year was 56.25% and 87.5% for the first and second year, respectively. Using frequentist and Bayesian approaches, the estimated individual prevalence revealed a downward trend from 3.30-3.65% in the first year to 1.66-1.86% in the third year. The results of this study indicate that pooled faecal culture allowed for proper classification of the herds and can be a useful tool for monitoring dairy herds against paratuberculosis. In addition, statistical analysis of pooled faecal culture results can be used to evaluate the evolution of individual prevalence in the population and therefore the function of the implemented control programmes.

Keywords

Beaudeau F., Belliard M., Joly A., Seegers H. (2007). Reduction in milk yield associated with Mycobacterium avium subspecies paratuberculosis (Map) infection in dairy cows. Vet. Res., 38: 625-634.Search in Google Scholar

Behr M., Collins D. (2010). Editors. Paratuberculosis: Organism, Disease, Control. Preston, UK, CAB International, 375 pp.Search in Google Scholar

Chongsuvivatwong V. (2012). Epicalc: Epidemiological Calculator. Rpackage version 2.14.1.6.Search in Google Scholar

Collins M., Eggleston V., Manning E. (2010). Successful control of Johne’s disease in nine dairy herds: results ofasix-year field trial. J. Dairy Sci., 93: 1638-1643.10.3168/jds.2009-266420338441Open DOISearch in Google Scholar

Cowling D., Gardner I., Johnson W. (1999). Comparison of methods for estimation of individual- level prevalence based on pooled samples. Prev. Vet. Med., 39: 211-225.Search in Google Scholar

Eurostat (2013). Livestock: number of farms and heads of animals of different types by agricultural size of farm (UAA) and NUTS 2 regions (http://appsso.eurostat.ec.europa.eu/nui/submitViewTableAction.do).Search in Google Scholar

Geraghty T., Graham D. A., Mullowney P., More S.J. (2014). Areview of bovine Johne’s disease control activities in 6 endemically infected countries. Prev. Vet. Med., 116: 1-11.Search in Google Scholar

Greiner M., Dekker A. (2005). On the surveillance for animal diseases in small herds. Prev. Vet. Med., 70: 223-234.Search in Google Scholar

Kalis C.H.J., Collins M.T., Barkema H.W., Hesselink J.W. (2004). Certification of herds as free of Mycobacterium paratuberculosis infection: actual pooled faecal results versus certification model predictions. Prev. Vet. Med., 65: 189-204.Search in Google Scholar

Messam V., Branscum A., Collins M., Gardner I. (2008). Frequentist and Bayesian approaches to prevalence estimation using examples from Johne’s disease. Anim. Health Res. Rev., 9: 1-23.10.1017/S146625230700131418346298Open DOISearch in Google Scholar

Osterstock J., Fosgate G., Norby B., Manning E., Collins M., Roussel A. (2007). Contribution of environmental mycobacteria to false-positive serum ELISAresults for paratuberculosis. J. Am. Vet. Med. Assoc., 230: 896-901.Search in Google Scholar

Raizman E., Fetrow J., Wells S. (2009). Loss of income from cows shedding Mycobacterium avium subspecies paratuberculosis prior to calving compared with cows not shedding the organism on two Minnesota dairy farms. J. Dairy Sci., 92: 4929-4936.10.3168/jds.2009-213319762809Open DOISearch in Google Scholar

Raizman E.A., Wells S.J., Muñoz-Zanzi C.A., Tavornpanich S. (2011). Estimated within- herd prevalence (WHP) of Mycobacterium avium subsp. paratuberculosis inasample of Minnesota dairy herds using bacterial culture of pooled faecal samples. Can. J. Vet. Res., 75: 112-116.Search in Google Scholar

Schaik G. van, Pradenas M., Mella A. & Kruze J. (2007). Diagnostic validity and costs of pooled faecal samples and individual blood or faecal samples to determine the cow- and herd-status for Mycobacterium avium subsp. paratuberculosis. Prev. Vet. Med., 82: 159-165.10.1016/j.prevetmed.2007.05.01817597241Open DOISearch in Google Scholar

Sergeant E.S.G. (2015). Epitools epidemiological calculators. Ausvet Pty Ltd. Available at: http://epitools.ausvet.com.au.Search in Google Scholar

Sergeant E.S.G., Nielsen S.S., Toft N. (2008). Evaluation of test-strategies for estimating probability of low prevalence of paratuberculosis in Danish dairy herds. Prev. Vet. Med., 85: 92-106.Search in Google Scholar

Smith B.P. (2009). Editor. Large animal internal medicine, 4th ed. St. Louis, USA, Mosby Elsevier, 1872 pp.Search in Google Scholar

Stabel J.R. (1997). An improved method for cultivation of Mycobacterium paratuberculosis from bovine fecal samples and comparison to three other methods. J. Vet. Diagn. Invest., 9: 375-380.10.1177/1040638797009004069376426Open DOISearch in Google Scholar

Sweeney R., Collins M., Koets A., Mc Guirk S., Roussel A. (2012). Paratuberculosis (Johne’s disease) in cattle and other susceptible species. J. Vet. Intern. Med., 26: 1239-1250.10.1111/j.1939-1676.2012.01019.x23106497Open DOISearch in Google Scholar

Tavornpanich S., Gardner I., Anderson R., Shin S., Whitlock R., Fyock T., Adas- ka J., Walker R., Hietala S. (2004). Evaluation of microbial culture of pooled faecal samples for detection of Mycobacterium avium subsp paratuberculosis in large dairy herds. Am. J. Vet. Res., 65: 1061-1070.10.2460/ajvr.2004.65.106115334839Open DOISearch in Google Scholar

Tavornpanich S., Muñoz-Zanzi C., Wells S., Raizman E., Carpenter T., John- son W., Gardner I. (2008). Simulation model for evaluation of testing strategies for detection of paratuberculosis in midwestern USdairy herds. Prev. Vet. Med., 83: 65-82.Search in Google Scholar

Toribio J., Sergeant E. (2007). Acomparison of methods to estimate the prevalence of ovine Johne’s infection from pooled faecal samples. Aust. Vet. J., 85: 317-324.Search in Google Scholar

Weber M. (2006). Risk management of paratuberculosis in dairy herds. Ir. Vet. J., 59: 555-561.Search in Google Scholar

Wells S., Whitlock R., Wagner B., Collins J., Garry F., Hirst H., Lawrence J., Saville W., Naugle A. (2002 a). Sensitivity of test strategies used in the Voluntary Johne’s Disease Herd Status Program for detection of Mycobacterium paratuberculosis infection in dairy cattle herds. J. Am. Vet. Med. Assoc., 220: 1053-1057.10.2460/javma.2002.220.105312420786Search in Google Scholar

Wells S., Whitlock R., Lindeman C., Fyock T. (2002 b). Evaluation of bacteriologic culture of pooled faecal samples for detection of Mycobacterium paratuberculosis. Am. J. Vet. Res., 63: 1207-1211.10.2460/ajvr.2002.63.120712171178Open DOISearch in Google Scholar

Wells S., Godden S., Lindeman C., Collins J. (2003). Evaluation of bacteriologic culture of individual and pooled faecal samples for detection of Mycobacterium paratuberculosis in dairy cattle herds. J. Am. Vet. Med. Assoc., 223: 1022-1025.Search in Google Scholar

Yokomizo Y., Yugi H., Merkal R. (1985). Amethod for avoiding false-positive reactions in an enzyme-linked immunosorbent assay (ELISA) for the diagnosis of bovine paratuberculosis. Japanese J. Vet. Sci., 47: 111-119.Search in Google Scholar

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