Restrictive use of antibiotics in organic animal farming – a potential for safer, high quality products with less antibiotic resistant bacteria

Aabo, S.

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Restrictive use of antibiotics in organic animal farming – a potential for safer, high quality products with less antibiotic resistant bacteri

Organic Eprints

     SafeOrganic Restrictive use of antibiotics in organic animal farming – a potential for safer, high quality products with less antibiotic resistant bacteria  Project leader: Søren Aabo, DTU  Partner countries: Denmark (DTU & UCPH) Sweden (SVA) France (ANSES) Italy (IZSVe) Czech Rep. (VRI) National Food Institute, Technical University of Denmark                    16 Nov 2011         Background - SafeOrganic •Organic production – specific management  procedures          (EU reg. 1804- 1999)  •Restricted use of antibiotic – outdoor housing of pigs •Lower levels of AR in organic pigs have been suggested •Higher food safety - important quality of organic pork -   marketing advantage •Possible contamination of organic meat from conventional pigs at slaughter  •Antibiotic consumption data is limited in animal production in EU •No valid marker system for imprudent use of antibiotic per se •Potential lack of credibility and lack of control options  National Food Institute, Technical University of Denmark                    16 Nov 2011         To enable slaughterhouses to reduce spread of antibiotic resistant bacteria and organic farmers to market meat products of higher food safety quality   Objectives •To document potential lower AR levels in organic pigs •To investigate the level of AR cross-contamination at slaughter  •To establish of correlation between observed AR and consumption of antibiotics  •To display risk factors in organic pig farming related to development of AR •To document the certainty of convenient sampling at slaughterhouse to display the herd status   Aim - SafeOrganic National Food Institute, Technical University of Denmark                    16 Nov 2011         SafeOrganic – Project structure National Food Institute, Technical University of Denmark                    16 Nov 2011         WP1 Management  Søren Aabo  DTU, Denmark  Assistent-manager Annette Nygaard DTU, Denmark  WP2  Management  Björn Bengtsson SVA, Sweden  WP3 Management   Martine Denis  ANSES, France  WP4 Management  Antonia Ricci  IZSVe,  Italy Work Package responsibility National Food Institute, Technical University of Denmark                    16 Nov 2011          WP2  Occurrence of antibiotic resistance in organic and conventional pigs  ?  MIC National Food Institute, Technical University of Denmark                    16 Nov 2011         WP2 Can we define herd status by sampling at the slaughterhouse? Herd     Slaughterhouse     (rectal samples)     (colon content)  National Food Institute, Technical University of Denmark                    16 Nov 2011         WP3 Transfer of antibiotic resistance during slaughter ? Need for improved hygiene barrier?? Conventional pigs National Food Institute, Technical University of Denmark                    16 Nov 2011         WP4  Marker system for AB use  • Can AR be used as an indicator of the level antibiotic consumption? (control option) DK VET-STAT data • Can genotype diversity be used to differentiate between meat of organic and conventional origin (control option) • Assessment of differences in AR genes and microbiota between organic and conventional pigs (molecular methods) National Food Institute, Technical University of Denmark                    16 Nov 2011         •Establishment of advisory committee - network – Representatives from organic animal producers, slaughter industry and consumer organizations.  –  The committee is yet to established.   •Transnational platform for knowledge on transfer on AR – enhancing the overall understanding  •Expected results related to sustaining the food safety quality of organic pork in EU  - Documentation of AR meat quality  - Recommendations for slaughter of organic pigs  - Control options for imprudent use of antibiotics  •Final work shop and knowledge dissemination Involvement of interest partners and added value of SafeOrganic National Food Institute, Technical University of Denmark                    16 Nov 2011         Thank you for your attension 

SafeOrganic

     SafeOrganic Restrictive use of antibiotics in organic animal farming – a potential for safer, high quality products with less antibiotic resistant bacteria  Søren Aabo  (Project leader) National Food Institute, DTU, Denmark    Partner countries:   Denmark (DTU & UCPH)   Sweden (SVA)   France (ANSES)   Italy (IZSVe)   Czech Rep. (VRI) Paris, November29th 2011 National Food Institute, Technical University of Denmark                            29 Nov 2011                 To support organic farmers to market meat products of higher food safety quality    Objectives •To document potential lower AR levels in organic pigs •To investigate the level of AR cross-contamination at slaughter  •To investigate for a correlation between observed AR and consumption of antibiotics  •To display factors in organic pig farming related to development of AR •To test a method for determining AR herd status at the slaughterhouse.   Aim - SafeOrganic National Food Institute, Technical University of Denmark                            29 Nov 2011                 Background - SafeOrganic •Antibiotic resistance is a food safety concern •Specific management  procedures (EU reg. 1804- 1999)  - restricted use of antibiotics and outdoor housing of pigs •Lower levels of AR in organic pigs have been suggested •Possible contamination of organic meat from conventional pigs at slaughter •Antibiotic consumption data is limited in animal    production in EU •Potential lack of credibility and lack of control options  National Food Institute, Technical University of Denmark                            29 Nov 2011                  Hypothesis: Occurrence of antibiotic resistance is lower in organic pigs than in conventional pigs   ?  MIC National Food Institute, Technical University of Denmark                            29 Nov 2011                 Hypothesis: Organic pork is contaminated with antibiotic resistance from conventional pork during slaughter. ? Need for improved hygiene barrier?? Conventional pigs National Food Institute, Technical University of Denmark                            29 Nov 2011                 Hypothesis: The antibiotic resistance  at herd level can be defined at slaughter.  Herd          Slaughterhouse       (rectal samples)        (colon content)  National Food Institute, Technical University of Denmark                            29 Nov 2011                 Hypothesis: Atypical resistance patterns can be used as markers for  imprudent use of antibiotics  • Cluster analysis can display herds with atypical antimicrobial resistance patterns, and potentially be a tool to pinpoint problematic herds (control option).   • High level of antibiotic consumption lead to clonal selection and lower genotype diversity in E. coli and in the whole intestinal microbiota. National Food Institute, Technical University of Denmark                            29 Nov 2011                 WP1  Management    Søren Aabo (PL)  DTU, Denmark   Annette Nygaard  DTU, Denmark  WP2   Occurrence of AR in organic and conventional pigs     Björn Bengtsson  SVA, Sweden  WP3  Cross-contamination at slaughter     Martine Denis   ANSES, France  WP4  Markers of antibiotic use   Antonia Ricci    IZSVe,  Italy Work Packages and leadership National Food Institute, Technical University of Denmark                            29 Nov 2011                 Core AR in organic and conventional herds WP 2.3, ALL Difference in genotype diversity between organic and conv. herds, WP 4.2 FR,DK  Convinient testing of herd status WP 2.2, DK Microbiota and R-gene analysis  WP 4.3 Cz/ ALL Herd factors related to AR WP 2.1 SE, IT Transfer of AR between organic and conventional pigs at slaughter, WP 3.1, ALL   Characteristic AR patterns indicative of imprudent AR consumption WP 4.1, DK, IT, ALL SafeOrganic National Food Institute, Technical University of Denmark                            29 Nov 2011                  Expected results from SafeOrganic   - Documentation of AR meat quality  - Recommendations for slaughter   - Control options for imprudent use of       antibiotics   National Food Institute, Technical University of Denmark                            29 Nov 2011                 Thank you for your attention 

SafeOrganic

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