322 – Antimicrobial Resistance on Farms – A Review Including Biosecurity and the Potential Role of Disinfectants in Resistance Selection (Research paper – Davies – 2019)

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322 Research paper – Davies – 2019 – Antimicrobial Resistance on Farms_ A Review Including Biosecurity and the Potential Role of Disinfectants in Resistance Selection

In Significant Impact Groups: Biosecurity
Species targeted: Pigs; Poultry; Dairy; Beef; Other;
Age: Not stated;
Summary:
Efforts to limit antimicrobial resistance (AMR) on farms have mostly focused on control of the supply and use of antimicrobial drugs, plus husbandry measures to reduce infectious disease. In the United Kingdom and some other countries, substantial progress has been made recently against targets on agricultural antimicrobial drug use. However, resistant bacteria can persist and spread within and between premises despite declining or zero antimicrobial drug use. Reasons for this include: bacterial adaptations, horizontal transmission of genetic resistance determinants between bacteria, physical transfer of bacteria via movement (of animals, workers, and equipment), ineffective cleaning and disinfection, and co-selection of resistance to certain drugs by use of other antimicrobials, heavy metals, or biocides. Aspects of biosecurity have repeatedly been identified as risk factors for the presence of AMR on farm premises, but there are still large gaps in our understanding of the most important risk factors and the most effective interventions.

Where to find the original material: https://onlinelibrary.wiley.com/doi/full/10.1111/1541-4337.12438; https://doi.org/10.1111/1541-4337.12438
Country: UK

314 The Seed Feed and Weed approach to managing intestinal health in drug-free production systems by The Poultry Informed Professional (Industry Innovation)

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314 Industry Innovation – The Seed Feed and Weed approach to managing intestinal health in drug-free production systems by The Poultry Informed Professional

In Significant Impact Groups: Feed / gut health \ Feeding management
Species targeted: Poultry;
Age: Young; Adult;
Summary:
The three most important legs of an effective intestinal management program include: “seeding” the gut with favourable organisms, “feeding” the favourable organisms and “weeding” out the unfavourable organisms. This involves applying a probiotic/competitive exclusion product as soon after hatch as possible. Adding a suitable organic acid via the drinking water to increasing its concentration in the small intestine and enhance the capacity of the favourable organisms to colonize and rapidly dominate the microbial community of the small intestine. Blocking the attachment mechanism of unfavourable organisms with a type-1 fimbria blocker and thereby reducing their capacity to compete with the favourable organisms in the gut.

Where to find the original material: https://journals.co.za/doi/10.10520/ejc-vp_afma_v30_n4_a10
Country: US

309 – Role of Feed Processing on Gut Health and Function in Pigs and Poultry_ Conundrum of Optimal Particle Size and Hydrothermal Regimens (Research paper – Kiarie – 2019)

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309 Research paper – Kiarie – 2019 – Role of Feed Processing on Gut Health and Function in Pigs and Poultry_ Conundrum of Optimal Particle Size and Hydrothermal Regimens

In Significant Impact Groups: Feed / gut health \ Feed composition
Species targeted: Pigs; Poultry;
Age: Not stated;
Summary:
Processing livestock feed influences gut health/function, efficacy of feed enzymes and nutrient availability. Finer feed particles allow better absorption of nutrients (increased surface area allowing better contact with digestive enzymes) and enhance animal performance. There is a limit to the particle size; very fine particles negatively affect gut health, i.e. stomach ulceration in pigs and gizzard dysfunction in poultry. Coarse particle size increases stomach and hindgut acidification, which may be beneficial in controlling overgrowth of gut bacteria, such as salmonella and E. coli. However, since most commercial pig/poultry diets are subject to heating to reduce levels of feed-borne bacteria (e.g. Salmonella) reduction of feed particle size is inevitable. However, achieving high nutritional quality and processing at high temperatures does not favour high nutrient availability and stability of heat sensitive enzymes. Therefore, feed processing balance maximum nutrient utilization, feed hygiene status, stability of enzymes post-processing and impact on gut health.

Where to find the original material: https://pubmed.ncbi.nlm.nih.gov/30838217/; https://doi.org/10.3389/fvets.2019.00019
Country: CA

308 Antimicrobial prescription patterns of veterinarians_ introduction of a benchmarking approach (Research paper; Bos, 2015)

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308 Research paper – Bos – 2015 – Antimicrobial prescription patterns of veterinarians_ introduction of a benchmarking approach

In Significant Impact Groups: Prudent use AB \ Veterinarian
Species targeted: Pigs; Poultry; Dairy; Beef;
Summary: A benchmark indicator for antimicrobial use on farms in the Netherlands was defined and introduced in 2011. As established by Dutch law, each farm is linked to one specific veterinarian (the contracted veterinarian), and therefore analysis of defined daily dosages animal per farm (DDDAF) can be done for all farms served by one veterinarian. The benchmark indicator for veterinarians estimates the likelihood of exceeding the farm action benchmark threshold for all farms for which the veterinarian is the contracted veterinarian. The added value of setting benchmarks for veterinarians is first and foremost to be found in self-regulation of the veterinarians, as the benchmark threshold is expected to stimulate veterinarians to mirror their prescription pattern to their colleagues and to trigger discussions between veterinarians.
Where to find the original material: https://academic.oup.com/jac/article/70/8/2423/811814; https://doi.org/10.1093/jac/dkv104
Country: NL

303 – Antimicrobial Usage and -Resistance in Livestock – Where Should We Focus (Research paper – Magouras – 2017)Research paper – Magouras – 2017

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303 Research paper – Magouras – 2017 – Antimicrobial Usage and -Resistance in Livestock_ Where Should We Focus

In Significant Impact Groups: AMU reduction strategies \ Monitoring and surveillance; Antibiotic use; Prudent use AB
Species targeted: Pigs; Poultry; Dairy; Beef; Sheep;
Age: Different for different species
Summary:
Antimicrobials play a crucial role in animal health, animal welfare, and food-safety . However, a not yet quantifiable share of the burden of AMR is attributable to the use of antimicrobials in livestock production. Resistant bacteria can be introduced into the environment in many ways, such as the land application of livestock manure as fertilizer. Our understanding of AMR in livestock production is hampered by the lack of antimicrobial usage (AMU) data in many countries. AMR development and spread is driven by human behaviour, from the prescription of antimicrobials to infection prevention and control. This complexity necessitates the need for highly interdisciplinary research approaches, comprising humans, animals, and the wider environment. In line with the WHO global action plan on AMR, research should be prioritized toward understanding the social/behavioural drivers of AMU and AMR, establishing/improving systems to monitor AMU, and encouraging a holistic approach to AMR through the One-Health concept.
303 Research paper – Magouras – 2017 – Antimicrobial Usage and -Resistance in Livestock_ Where Should We Focus
Where to find the original material: https://www.frontiersin.org/articles/10.3389/fvets.2017.00148/full; https://doi.org/10.3389/fvets.2017.00148
Country: CH

284 – Essential oils and aromatic plants in animal feeding – A European perspective – A review (Research paper – Franz – 2009)

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284 Research paper – Franz – 2009 – Essential oils and aromatic plants in animal feeding – a European perspective A review

In Significant Impact Groups: Specific alternatives \ Pre-/probiotics
Species targeted: Pigs; Poultry; Dairy; Beef; Sheep; Other;
Age: Young; Adult;
Summary:
In the last years there has been substantial interest on the use of aromatic herbs and essential oils as feed additives in animal nutrition. Significant antimicrobial effects of several essential oils and compounds against gut organisms in farm animals have been shown. Specific Escherichia coli strains could be controlled by in-feed application of carvacrol-rich essential oils, and the effect of some essential oil components against Clostridium perfringens and necrotic enteritis was confirmed in poultry. In ruminants, an improvement of the digestion was observed. Aromatic plants and essential oil compounds improve stability and palatability of animal feed and improved shelf-life and quality of animal products. The ‘growth-promoting effect’ of essential oils is not as evident. Nonetheless, the overall efficacy of essential oils and aromatic herbs, especially their impact on the health status and benefit of animals and humans (via the food chain) is encouraging further research and development in this field.

Where to find the original material: Essential oils and aromatic plants in animal feeding – a European perspective. A review. – Franz – 2010 – Flavour and Fragrance Journal – Wiley Online Library; https://doi.org/10.1002/ffj.1967
Country: TR; AT

283 – Antibiotic alternatives_ the substitution of antibiotics in animal husbandry (Research paper – Cheng – 2014)

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283 Research paper – Cheng – 2014 – Antibiotic alternatives_ the substitution of antibiotics in animal husbandry

In Significant Impact Groups: Specific alternatives \ New antibiotics
Species targeted: Pigs; Poultry; Dairy; Beef; Sheep; Other;
Age: Young; Adult;
Summary:
It is a common practice for decades to use of sub-therapeutic dose of antibiotics in food-animal feeds to prevent animals from diseases and to improve production performance in modern animal husbandry. Concerns over the increasing emergence of antibiotic-resistant bacteria have prompted efforts to develop so-called alternatives to antibiotics. This review summarizes recent development and perspectives of alternatives to antibiotics. The mechanism of actions, applications of the alternatives such as immunity modulating agents, bacteriophages and their lysins, antimicrobial peptides, pro-, pre-, and synbiotics, plant extracts, inhibitors targeting pathogenicity, and feeding enzymes are discussed. Lastly, the feasibility of these alternatives is analyzed. The conclusion is that these alternatives are not likely to replace antibiotics in animals in a foreseeable future. Therefore, prudent use of antibiotics and the establishment of scientific monitoring systems are the best and fastest way to limit the adverse effects of overuse of antibiotics.

Where to find the original material: https://www.frontiersin.org/articles/10.3389/fmicb.2014.00217/full; https://doi.org/10.3389/fmicb.2014.00217
Country: CN

282 – Influence of applying broiler welfare laws on unit cost (Research paper – Tudorache – 2014)

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282 Research paper – Tudorache – 2014 – Influence of applying broiler welfare laws on unit cost

In Significant Impact Groups: Housing and welfare
Species targeted: Poultry;
Age: Not stated;
Summary:
European Union and especially some national governments have gradually increased production costs by political decisions of introducing new rules concerning food safety, protection of environment and animal welfare. This paper has been performed to assess economic consequences of applying broiler welfare laws on unit cost by kg live weight. The study was performed during four years with production data from six top poultry farms from Romania before (V1) and after the introduction of broiler welfare rules (V2 and V3). Analyzing these percentages has revealed that unit cost is 1.81% higher in variant V2 than in variant V1 and 3.43% higher in variant V3 compared to base variant. On the other hand, welfare rules also brings savings in unit costs between 1.12% for biological material and feeds – V2 and 37.50% for ventilation energy – V3.

Where to find the original material: https://www.semanticscholar.org/paper/INFLUENCE-OF-APPLYING-BROILER-WELFARE-LAWS-ON-UNIT-Tudorache-Custur%C4%83/308e9485d75e55e090d46b8242a34402e4cb108d
Country: RO

275 – Water management practices in rabbit and poultry farms improve understanding of different attitudes (Research paper – Rousset – 2019)

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275 Research paper – Rousset – 2019 – Water management practices in rabbit and poultry farms improve understanding of different attitudes

Water \ Water quality
Species targeted: Poultry; Other;
Age: Not stated;
Summary:
In poultry and rabbit farms, the control of water quality is an important animal health measure. Technical guides describe good water management practices, and criteria of water quality. However, the level of receptivity and application of theses advices is very different between breeders. In order to sensitize farmers effectively, a qualitative study was conducted with 11 rabbit farmers and 7 broilers farmers, to improve understanding of different attitudes to water management practices. The majority of breeders define the quality of water in an imprecise way. Four profiles have been identified that can be represented along two axes: the level of knowledge and the level awareness of the importance of water quality subject. Breeders require advices that are more personal. It will be necessary to encourage them, to guide them more. Based on these profiles, suitable supports are being built.

Where to find the original material: https://www.itavi.asso.fr/content/la-gestion-de-leau-dabreuvement-en-elevages-cunicole-et-avicole-mieux-comprendre-les;
Country: FR

274 – RefA2vi Towards the formalization of a French professional reference network on the use of antibiotics at poultry farm level (Research paper – Rousset – 2019)

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274 Research paper – Rousset – 2019 – RefA2vi Towards the formalization of a French professional reference network on the use of antibiotics at poultry farm level

In Significant Impact Groups: AMU reduction strategies \ Monitoring and surveillance; Antibiotic use
Species targeted: Poultry;
Age: Not stated;
Summary:
Currently poultry production organizations are committed to defining an indicator monitoring the reasoned use of antibiotics. That is why, the French Poultry Institute (ITAVI), with the French poultry’s inter-professional organizations and Anses formalize a professional network to collect computerized data on use of antibiotics at farm level (RefA²vi project). In 2014 and 2015, two surveys allowed collecting data from poultry farms in all species and production types. The partners were invited to create a scheme of network organization, which have been tested during a pilot phase.

Where to find the original material: https://www.itavi.asso.fr/content/refa2vi-vers-la-formalisation-dun-reseau-de-references-professionnelles-francais-sur;
Country: FR