66 Mastitis prevention and therapy for sustainable dairy production (Research report)

Significant Impact Group(s): Pathogen management \ Managing sick animals \ Targeted use of antibiotics ; AMU reduction strategies
Species targeted: Dairy;
Age: Adult;
Outcome Parameter(s): Udder health
Summary: Bad udder health management threatens human health due to zoonotic or antimicrobial resistant pathogens adapting to different environments. Mastitis prevention is essential in an effective and sustainable dairy production system. High quality milk with low SCC is crucial for product quality for the processing industry (cheese making). This will result in a reduction of food loss and food waste by producers, processors and consumers. Mastitis is one of the most frequent and important diseases in bovine milk production with high antimicrobial usage and a source of creating a potential acceleration on the emergence of antimicrobial resistance. The presented results will discuss data collected at country level on mastitis therapy and examine strategies to improve udder health for a sustainable dairy production.
66 Research report – Osteras – 2019 – Mastitis prevention and therapy for sustainable dairy production
Where to find the original material:
https://www.researchgate.net/profile/Maria_Sanchez_Mainar/publication/337363922_Mastitis_Prevention_and_Therapy_for_Sustainable_Dairy_Production/links/5dd410dd458515cd48abdc19/Mastitis-Prevention-and-Therapy-for-Sustainable-Dairy-Production.pdf;
Country: BE

66 Research report – Osteras – 2019 – Mastitis prevention and therapy for sustainable dairy production

65 Antibiotic use in dairy herds in the Netherlands from 2005 to 2012 (Research paper; Kuipers, 2012)

 

 

Significant Impact Group(s): AMU reduction strategies \ Monitoring and surveillance \ Antibiotic use ; Prudent use AB
Species targeted: Dairy;
Age: Adult;
Outcome Parameter(s): Animal-Defined Daily Dosages (ADDD)
Summary: The indicator animal-defined daily dosages (ADDD) was used to evaluate antibiotic use for 3 farmer groups and 6 treatment categories. Large variation in antibiotic use was found between herds, and variation in use among herds decreased during the study period. Reducing antibiotic use and the variation in use were related to changes in management practices, which can enhance drug use awareness. Managing udder health is the main reason for antibiotic use, justifying as 68% of all ADDD. A reduction in use was achieved by reducing daily dosages used as other treatments. A reduction in use for the treatment of mastitis was also noted, but farmers were hesitant to reduce dry-cow therapy. Restrictions on third-choice drugs were successful in minimizing their use, with a shift to increased use of penicillin and certain broad-spectrum drugs. Both lower veterinary costs per cow and antibiotic use decreased in recent years, according to this study.
65 Research paper – Kuipers – 2012 – Antibiotic use in dairy herds in the Netherlands from 2005 to 2012
Where to find the original material:
https://www.sciencedirect.com/science/article/pii/S0022030215009054; https://doi.org/10.3168/jds.2014-8428
Country: NL

65 Research paper – Kuipers – 2012 – Antibiotic use in dairy herds in the Netherlands from 2005 to 2012

64 Consumption of Antimicrobials in Pigs, Veal Calves, and Broilers in The Netherlands: Quantitative Results of Nationwide Collection of Data in 2011 (Research paper; Bos, 2013)

 

 

Significant Impact Group(s): AMU reduction strategies \ Monitoring and surveillance \ Antibiotic use
Species targeted: Pigs; Poultry; Dairy;
Age: Different for different species;
Outcome Parameter(s): defined daily dosages per year (ADDD/Y); treatment days per year
Summary: Since 2011, the consumption of veterinary antimicrobial has been recorded in The Netherlands. These data are used to define benchmark indicators for veterinary consumption of antimicrobials. This paper presents the results of sector wide consumption of antimicrobials, for all pig, veal calf, and broiler farms. Data were used to calculate animal defined daily dosages per year (ADDD/Y) per pig or veal calf farm. For broiler farms, number of animal treatment days per year was calculated. Furthermore, data were used to calculate the consumption of specific antimicrobial classes per administration route per pig or veal calf farm. The distribution of antimicrobial consumption per farm varied greatly within and between farm categories. The insights obtained from the results of this study, and the full transparency obtained by monitoring antimicrobial consumption per farm, will help reduce antimicrobial consumption and help create implementation of antimicrobial stewardship.
64 Research paper – Bos – 2013 – Consumption of Antimicrobials in Pigs Veal Calves and Broilers in The Netherlands_ Quantitative Results of Nationwide Collection of
Where to find the original material:
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3804574/; https://doi.org/10.1371/journal.pone.0077525
Country: NL

64 Research paper – Bos – 2013 – Consumption of Antimicrobials in Pigs Veal Calves and Broilers in The Netherlands_ Quantitative Results of Nationwide Collection of

62 Quantification of antimicrobial usage in dairy cows and preweaned calves in Argentina (Research paper, Pereyra, 2015)

 

 

Significant Impact Group(s): AMU reduction strategies \ Monitoring and surveillance \ Antibiotic use ; Pathogen management
Species targeted: Dairy;
Age: Young; Adult;
Outcome Parameter(s): Antimicrobial usage; Disease prevalence
Summary: Antimicrobial use in dairy cows and calves was estimated using standardized drug usage indicators in Argentina. In lactating dairy cows, intramammary usage accounted for the majority of total drug usage. All the surveyed disease cases in calf rearing units included treatment with antibiotics.
62 Research paper – Pereyra – 2015 – Quantification of antimicrobial usage in dairy cows and preweaned calves in Argentina
Where to find the original material:
https://www.sciencedirect.com/science/article/pii/S0167587715300404; https://doi.org/10.1016/j.prevetmed.2015.10.019
Country: AR

62 Research paper – Pereyra – 2015 – Quantification of antimicrobial usage in dairy cows and preweaned calves in Argentina

60 Strategies for reduced antibiotic usage in dairy cattle farm (Research paper; Trevisi, 2014)

 

 

Significant Impact Group(s): Pathogen management \ Managing sick animals \ Targeted use of antibiotics ; AMU reduction strategies
Species targeted: Dairy;
Age: Adult;
Outcome Parameter(s): Inflammatory response
Summary: A proper combination of herd data on opportunistic diseases and of farm-specific risk factors can lead to a substantial reduction of antibiotic usage in dairy farms. In this respect, the proper combination of clinical inspections, animal-based welfare parameters and predictive laboratory tests can give clues as to the environmental adaptation of dairy cows and define the animals at risk. The greater potential for disease control in the herd can justify the adoption of such a strategy on a sound cost/benefit basis.
60 Research paper – Trevisi – 2014 – Strategies for reduced antibiotic usage in dairy cattle farms
Where to find the original material:
https://www.sciencedirect.com/science/article/pii/S0034528814000253; http://dx.doi.org/10.1016/j.rvsc.2014.01.001
Country: IT

60 Research paper – Trevisi – 2014 – Strategies for reduced antibiotic usage in dairy cattle farms

58 Effect of different scenarios for selective dry-cow therapy on udder health, antimicrobial usage, and economics (Research paper; Scherpenzeel, 2015)

 

 

Significant Impact Group(s): Prudent use AB \ Veterinarian
Species targeted: Dairy;
Age: Adult;
Outcome Parameter(s): Udder Health; antimicrobial use; herd economics
Summary: The aim of this study was to evaluate udder health, antimicrobial usage (AMU), and herd economics during the dry period and the first 100 d of lactation when using 8 varying scenarios for selecting cows for DCT, including a blanket DCT (BDCT) scenario. Clinical mastitis (CM) in the study herd varied from 11.6 to 14.5 cases per 10,000 cow-days at risk in the different scenarios, and the prevalence of subclinical mastitis varied from 38.8% in scenario 1 (BDCT) to 48.3% in scenario 8. Total AMU varied over the scenarios from 1.27 (scenario 8) to 3.15 (BDCT, scenario 1) Animal Daily Doses, leading to a 60% reduction in AMU for scenario 8 compared with BDCT. The total costs for each of the scenarios showed little variation. The effect of selective DCT on udder health, AMU and herd economics was influenced by SCC used to select cows. The greatest reduction in AMU was achieved under scenario 8.
58 Research paper – Scherpenzeel – 2015 – Effect of different scenarios for selective dry-cow therapy on udder health antimicrobial usage and economics
Where to find the original material:
https://www.journalofdairyscience.org/article/S0022-0302(16)30007-8/fulltext; https://doi.org/10.3168/jds.2015-9963
Country: NL

58 Research paper – Scherpenzeel – 2015 – Effect of different scenarios for selective dry-cow therapy on udder health antimicrobial usage and economics

53 Prevalence and risk factors for extended-spectrum β-lactamase- and AmpC-producing Escherichia coli in dairy farms

Significant Impact Group(s): AMU reduction strategies \ Legislation and incentives
Species targeted: Dairy;
Age: Adult;
Outcome Parameter(s): herd-level prevalence of ESBL- and AmpC-producing E. coli
Summary: This study estimated the herd-level prevalence of antimicrobial resistant bacteria, specifically ESBL- and AmpC-producing E. coli among Dutch dairy farms. No association was found between the total AMU and the ESBL/AmpC herd status. The use of third- and fourth-generation cephalosporins, however, was associated with an increased odds of having a positive ESBL/AmpC herd status and seems important in reducing ESBL/AmpC. Four other management factors were also found to be associated with the ESBL/AmpC status of dairy herds: treatment of all cases of clinical mastitis with antimicrobials, a higher proportion of calves treated with antimicrobials, not applying teat sealants in all cows at dry off, and the use of a floor scraper (which is probably not a true risk factor). Also ESBL/AmpC could frequently be cultured from slurry samples collected from Dutch dairy farms.
53 Research paper – Gonggrijp – 2016 – Prevalence and risk factors for extended-spectrum b-lactamase- and AmpC-producing Escherichia coli in dairy
Where to find the original material:
https://www.sciencedirect.com/science/article/pii/S0022030216306257; https://doi.org/10.3168/jds.2016-11134
Country: NL

53 Research paper – Gonggrijp – 2016 – Prevalence and risk factors for extended-spectrum b-lactamase- and AmpC-producing Escherichia coli in dairy

51 Effects of Reducing Antimicrobial Use and Applying a Cleaning and Disinfection Program in Veal Calf Farming: Experiences from an Intervention Study to Control Livestock-Associated MRSA (Research paper; Dorado-Garcia, 2015)

 

 

Significant Impact Group(s): AMU reduction strategies ; Biosecurity
Species targeted: Dairy;
Age: Young;
Outcome Parameter(s): decrease in MRSA prevalence
Summary: A Dutch policy was set in place in 2010 promoting a reduction of antimicrobial use (AMU) in food-producing animals. In this context, a study evaluated 2 different strategies: a. with reducing of antimicrobials and b. with reduction of antimicrobials and with a cleaning and disinfection program. These results suggest that AMU reduction might be a good strategy for reducing MRSA in veal calf farming, however the effect of the cleaning and disinfection protocol used in this study was not effective. The study indicates that the long term AMU decrease is likely to lower MRSA levels in people living and/or working in veal farms.
51 Research paper – Dorado-García – 2015 – Effects of Reducing Antimicrobial Use and Applying a Cleaning and Disinfection Program in Veal Calf Farming
Where to find the original material:
https://journals.plos.org/plosone/article/file?type=printable&id=10.1371/journal.pone.0135826; https://doi.org/10.1371/journal.pone.0135826
Country: NL

51 Research paper – Dorado-García – 2015 – Effects of Reducing Antimicrobial Use and Applying a Cleaning and Disinfection Program in Veal Calf Fa

49: 3 lessons in reducing antimicrobials in pigs by Trouw PDCA (Farm Innovation)

 

 

Significant Impact Group(s): AMU reduction strategies ; Feed / gut health
Species targeted: Pigs;
Age: Young; Adult;
Outcome Parameter(s): Effects social and/or public health positively
Summary: Some EU forerunners in pig husbandry have been successful at reducing antimicrobials without sacrificing productivity or performance. Three antimicrobial reduction take-home messages, inspired by forerunners’ success are discussed in this article. In field studies it is shown how multi-stakeholder approach can help achieve goals while reducing their reliance on antimicrobials.
Take home message 1: benchmarking optimises success
Take home message 2: it is all about prevention
Take home message 3: an integrated approach is key
Concluding: Plan, do, check and act:
Scientific insights applied to practical approaches on customer farms show that a multi-stakeholder approach, integrating feed, farm and health management can help swine farmers achieve production goals while reducing or eliminating their reliance on antimicrobials.
49 Farm Innovation – 3 lessons in reducing antimicrobials in pigs by Trouw PDCA
Where to find the original material: (in English)
https://www.pigprogress.net/Health/Articles/2019/6/3-Lessons-to-reduce-antimicrobials-in-pigs-432402E/?cmpid=NLC%7Cpigprogress_focus%7C2019-06-21%7C3_Lessons_to_reduce_antimicrobials_in_pigs&fbclid=IwAR1VZ66yhBdm6B9dX-QjXYS27PRpllj_byYlZlcD3Ccn-63hmgaB1mU
Country: EU

49 Farm Innovation – 3 lessons in reducing antimicrobials in pigs by Trouw PDCA

48 Economic optimization of selective dry cow treatment (Research paper; Scherpenzeel, 2018)

 

 

Significant Impact Group(s): Pathogen management \ Managing sick animals \ Targeted use of antibiotics ; AMU reduction strategies
Species targeted: Dairy;
Age: Adult;
Outcome Parameter(s): Udder health status
Summary: The goal of this study was to identify a scenario with the lowest costs for mastitis associated with the dry period while restricting the percentage of cows that need to be dried off with dry cow antimicrobials. The costs of clinical/subclinical mastitis and the antimicrobial use were quantified. The economic impact of reducing the percentage of clinical mastitis was found to be much larger than reducing the bulk tank somatic cell count. The optimal percentage of cows to be dried off with antimicrobials depends on the udder health situation, expressed as the bulk tank somatic cell count and the occurrence of clinical mastitis. Selective dry cow treatment was economically more beneficial than blanket dry cow treatment, for all types of herds studied. Economic profits of selective dry cow treatment are greater if bulk tank somatic cell count and clinical mastitis incidence are lower.
48 Research paper – Scherpenzeel – 2018 – Economic optimization of selective dry cow treatment
Where to find the original material:
https://www.sciencedirect.com/science/article/pii/S0022030217311098; https://doi.org/10.3168/jds.2017-13076
Country: NL

48 Research paper – Scherpenzeel – 2018 – Economic optimization of selective dry cow treatment