128 Herd-specific interventions to reduce antimicrobial usage in pig production without jeopardising technical and economic performance (Research paper – Collineau – 2017

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128 Research paper – Collineau – 2017 – Herd-specific interventions to reduce antimicrobial usage in pig production without jeopardising technical and economic performance

Biosecurity \ Pathogen management
Species targeted: Pigs;
Age: Young; Adult;
Summary: Pig farmers are strongly encouraged to reduce their antimicrobial usage in order to reduce the risk of antimicrobial resistance. Herd-level intervention is needed to achieve reduction targets. The objective of this study was to asses feasibility, effectiveness and return on investment these interventions aiming at reducing antimicrobial usage in pig production. An intervention study was conducted in 70 farrow-to-finish pig farms located in Belgium, France, Germany and Sweden. Following interventions, a reduction in antimicrobial use was achieved without negative impact on the technical performance. Mortality in suckling piglets, weaners and fatteners, daily weight gain and feed conversion ratio did not significantly change during the study, while the number of weaned piglets per sow per year slightly increased. Median change in net farm profit was overall positive. Costs of alternative measures are therefore not a barrier, but an opportunity to optimize production practices for sustained productivity and improved animal health.

https://www.ncbi.nlm.nih.gov/pubmed/28716198; https://doi.org/10.1016/j.prevetmed.2017.05.023

Country: BE; CH; FR; SE; DE; DK;

127 Factors associated with specific health welfare and reproductive performance indicators in pig herds from five EU countries (Research paper; Chantziaras, 2018)

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127 Research paper – Chantziaras – 2018 – Factors associated with specific health welfare and reproductive performance indicators in pig herds from five EU countries

Housing and welfare \ Weaning age and management; Pathogen management
Species targeted: Pigs;
Age: Young; Adult;
Summary:
Production diseases are often the result of interactions between many factors. The focus of this study was to identify specific environment-related factors and to discuss their associations with health, welfare and reproductive performance in sows and piglets, in diverse systems using data from 130 farms from five EU countries. Eight parameters were selected from this data, four related to sow reproductive performance (litter index, replacement rate, repeat breeding (i.e. failure to breed after one mating), weaning to first mating interval) and the remaining four to litter / piglet health performance (piglets born alive per litter, piglets born dead per litter, preweaning mortality rate and weaned piglets per litter). Data analysis showed that factors related to applying good farm and health management, and optimal housing conditions were found to have a positive effect on various sow and piglet performance parameters.

Where to find the original material: https://www.sciencedirect.com/science/article/pii/S0167587718303908; https://doi.org/10.1016/j.prevetmed.2018.09.006
Country: BE; DE, DK; FI; UK

56 Guidelines for prudent use of antimicrobials and their implications on antibiotic usage in veterinary medicine (Research paper; Ungemach, 2006)

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Significant Impact Group(s): Prudent use AB \ Veterinarian
Species targeted: Pigs; Poultry; Dairy; Beef; Sheep;
Age: Young; Adult;
Outcome Parameter(s): Reduced AMU
Summary: To reduce antimicrobial use (AMU) and minimize the development of resistance, compulsory guidelines for responsible use were published in Germany in 2000. Key elements of the guidelines are the use of antibiotics on the basis of an exact diagnosis, choosing a product with a narrow spectrum of activity, high safety margin and good tissue penetration, avoidance of critically important antibiotics, and adherence to the datasheet (no underdosing or prolonged dosing). Any deviations from the guidelines must be justified and recorded. Monitoring of AMU as medicated feed in pig production indicated a change in prescribing after guideline introduction. AMU declined from 4255 kg before the guidelines to 1145 kg by 2002, resulting in a reduction in the treatment days/animal from 31.6 to 13.6 days. The use of chlortetracycline decreased from 76% of the total antibiotics prescribed to 14.7% at the end of the study. These results suggest the responsible AMU guidelines have been an important tool to reduce AMU.
56 Research paper – Ungemach – 2006 – Guidelines for prudent use of antimicrobials and their implications on antibiotic usage in veterinary medicine
Where to find the original material:
https://www.sciencedirect.com/science/article/pii/S1438422106000634; https://doi.org/10.1016/j.ijmm.2006.01.059
Country: DE

56 Research paper – Ungemach – 2006 – Guidelines for prudent use of antimicrobials and their implications on antibiotic usage in veterinary medicine

26 Potential dietary feed additives with antibacterial effects and their impact on performance of weaned piglets: A meta-analysis (Research paper, Vanrolleghem et al., 2019)

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Significant Impact Group(s): Feed / gut health \ Feed additives and supplements – Feed additives and supplements ; Specific alternatives

Species targeted: Pigs;
Age: Young;
Outcome Parameter(s): growth parameters; ‘average daily gain’ (ADG); ‘feed conversion ratio’ (FCR)
Summary: Between January 2010 and January 2017, 23 in vivo studies (comprising 50 trials) were published that evaluated the use of potential dietary feed additives (pDFA) against a positive control diet with antibiotics in weaned piglets, and reporting the performance parameters average daily gain’ (ADG) and ‘feed conversion ratio’ (FCR). The results of the meta-analysis clearly show that adding a pDFA at weaning can improve performance indicators compared to an untreated group (negative control), suggesting that pDFA could increase growth and improve feed conversion. As such, pDFA could potentially enhance production without the negative side effect of AMUs. Compared to the use of AMUs (positive control), the results of the meta-analysis show no overall significant difference. This is a beneficial result, as it suggests that the use of AMUs around weaning, a very commonly used practice, could be replaced by pDFA without significant negative effects on the performance indicators.
26 Research paper – Vanrolleghem – 2019 – Potential dietary feed additives with antibacterial effects and their impact on performance of weaned piglets: A meta-analysis. Vanrolleghem, W., Tanghe, S., Verstringe, S., Bruggeman, G., Papadopoulos, D., Trevisi, P., Zentek, J., Sarrazin, S. and J. Dewulf 2019 The Veterinary Journal 249: 24-32
Where to find the original material:
https://www.sciencedirect.com/science/article/pii/S1090023319300528; https://doi.org/10.1016/j.tvjl.2019.04.017
Country: BE, IT, DE

26 Research paper – Vanrolleghem – 2019 – Potential dietary feed additives with antibacterial effects and their impact on performance of

8 Antimicrobial usage in pig production check improve and reduce in Belgium and the EU (Research paper Postma 2016)

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8 Research paper
Antimicrobial usage in pig production : check, improve and reduce in Belgium and the EU (A DISSERTATION) by Postma, M. 2016 Antimicrobial usage in pig production : check, improve and reduce in Belgium and the EU : 306p.
Significant Impact Group(s): Biosecurity ; Prudent use AB
Species targeted: Pigs;
Age: Young; Adult;
Outcome Parameter(s): Reduced AMU; reduced costs on medicines; improved animal health and increased production
Summary: High antimicrobial usage (AMU) and the threat of antimicrobial resistance (AMR) highlighted the need for reduced AMU in pig production. Prevention of disease is necessary to obtain a reduced need for AM treatment. This study aimed at assessing possible associations between the biosecurity level, AMU and farm and production characteristics in order to advise on best practices for achieveing low AMU and maximum animal health and production. The research involved 227 farrow-to-finish pig herds in Belgium, France, Germany and Sweden in 2012/2013. 1) Establish a consensus defined daily dose animal (DDDA) for each active substance (AS) and administration route for porcine veterinary antimicrobial (AM) products authorized in four European countries, thus allowing cross-country quantification and comparison of antimicrobial usage (AMU) data. All veterinary AM products authorized for porcine use in Belgium, France, Germany and Sweden were listed for each administration route. First, separate DDDAs for each product were defined based on the recommended dosing for the main indication. Second, a consensus DDDA was established by taking the mean of the DDDAs for each product within a certain category of AS plus administration route. Large variations were observed for dosage and treatment duration recommendations between products and between countries for the same ASs. Only 6.8% of feed/water and 29.4% of parenteral AS groups had the same recommended dosage in the four countries. Four major recommendations have been formulated: (i) urgent need for harmonization of authorization and recommended summary of product characteristics (SPC) dosages; (ii) expand the developed preliminary DDDA list to include all authorized veterinary medicinal products in all EU member states and for all (food-producing) animal species; (iii) improved accessibility of country-specific SPC data would be preferable; and (iv) statement of the ‘long-acting’ duration of a product in the SP. 2) Nineteen alternatives to antimicrobial (AM) agents were ranked on perceived effectiveness, feasibility and return on investment (ROI) by 111 pig health experts from Belgium, Denmark, France, Germany, Sweden and Switzerland. Analysis showed that veterinary practitioners rank internal biosecurity, vaccination, use of zinc/metals, feed quality optimization and climate/environmental on average highest, while researchers and professors focused more on increased use of diagnostics and action plans. Financial incentives/penalties ranked low in all countries. Belgian respondents ranked feed quality significantly lower compared to the German respondents while reduction of stocking density was ranked higher in Belgium compared to Denmark. Further analysis showed veterinary practitioners
had a preference for more practical, common and already known alternatives. The results showed that improvements in biosecurity, increased use of vaccination, use of zinc/metals, feed quality improvement and regular diagnostic testing combined with a clear action plan were perceived to be the most promising alternatives to AMs in industrial pig production based on combined effectiveness, feasibility and ROI. 3) This study aimed at assessing the levels of implementation of biosecurity measures in pig production in four European Union (EU) countries . A cross-sectional study was conducted in 232 farrow-to-finish pig herds in Belgium, France, Germany and Sweden between 2012-2013. The biosecurity status in each
of these herds was described and quantified by using the risk-based scoring tool Biocheck.UGent (www.biocheck.ugent.be). Production and management characteristics, obtained from the herd management system and by interviewing the farmer, were analysed for their association with the biosecurity level. The results showed that there was substantial room
for improvement in the biosecurity status on many pig farms. Significant differences (p<0.01) both in internal and external biosecurity levels were observed between countries. The external biosecurity status, combining all measures taken to prevent disease introduction into the herd, was highest in Germany and lowest in France. The number of pathogens vaccinated against was significantly associated with internal biosecurity status, suggesting an overall more preventive approach towards the risk of disease transmission. A
higher external biosecurity was associated with more weaned piglets per sow per year.

8 Research paper – Postma – 2016 – Antimicrobial usage in pig production_check, improve and reduce in Belgium and the EU

Where to find the original material:
https://biblio.ugent.be/publication/7222359;
Country: BE

 

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Check improve and reduce. Prevention of disease is necessary to obtain a reduced need for AM treatment. This study aimed at assessing possible associations between the biosecurity level, AMU and farm and production characteristics in order to advise on best practices for achieveing low AMU and maximum animal health and production.