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Antimicrobial Use & Resistance in Animal Health in Ireland
James Gibbons MVB PhD
Antimicrobial Use in Animals: Ireland
HPRA Report, 2015: https://www.hpra.ie/docs/default-source/publications-forms/newsletters/report-on-consumption-of-veterinary-antibiotics-in-ireland-during-2014.pdf?sfvrsn=9
2014 Total: 90.2 tonnes
Antimicrobial Use in Animals: Ireland
HPRA Report, 2015: https://www.hpra.ie/docs/default-source/publications-forms/newsletters/report-on-consumption-of-veterinary-antibiotics-in-ireland-during-2014.pdf?sfvrsn=9
Oral formulations: • Variation in dose • Direct exposure of GIT flora • Environmental residues
Antimicrobial Use in Animals: UK
Source: UK‐VARSS Report 2014
89% of antimicrobial sales for food animals in UK in oral formulations
Antimicrobial Use in Animals: UK
Source: UK‐VARSS Report 2014
3.5 %
17.3 %
<0.3 %
5.1 %
60.9 %
0.5 %
12.5 %
83% of AM for food animals in UK indicated for use in pigs & poultry 89% of AM in oral formulations Most oral AM use occurs in pigs & poultry in UK
Antimicrobial Use in Animals: Europe
Source: EMA, 2016
Antimicrobial Use in Animals: Europe
Antimicrobial Use in Animals: Europe
European Medicines Agency, European Surveillance of Veterinary Antimicrobial Consumption, 2016 http://www.ema.europa.eu/docs/en_GB/document_library/Report/2016/10/WC500214217.pdf
Antimicrobial Use in Animals: UK
Antimicrobial use on Irish pig farms
8
30
20
16
2
0
5
10
15
20
25
30
35
None Piglet Link Weaner Finisher
No. of farms using in-feed antimicrobials in each production stage (n=39)
Antimicrobial use on Irish pig farms
8
11
1
3
14
2
0
2
4
6
8
10
12
14
16
None Piglet only Link Only Piglet & Link Piglet, Link & Weaner
Piglet, Link, Weaner & Finisher
Patterns of in-feed antimicrobial use on 39 pig farms
Antimicrobial use on Irish pig farms
4
1
10
1
10
3
6
Apramycin CTC Linco-Spec Penicillin Tilmicosin Amoxicillin Sulphas
No
. of
farm
s
Antimicrobial compounds used in-feed in piglet feed
Antimicrobial use on Irish pig farms
1 1 1
5
3 2
9
2
No
. of
farm
s
Antimicrobial compounds used in-feed in link feed
Antimicrobial use on Irish pig farms
9
2
1
4
1
CTC Penicillin Amoxicillin Sulphas Tylosin
No
. of
farm
s
Antimicrobial compounds used in-feed in weaner feed
Antimicrobial use on Irish pig farms
14
8 10
8 10 10
18 19
14 14
7 8
14
10
14
30
50
14
piglet piglet piglet piglet piglet piglet link link link link link link link link link weaner weaner weaner
No
. of
day
s
Duration of treatment with Sulfoprim antimicrobial compound in-feed on 18 farms
Antimicrobial use on Irish pig farms
10 12
42
49
45
21
50
40
piglet link weaner weaner weaner weaner weaner weaner
No
of
day
s
Duration of treatment with CTC 15% compound in-feed on 8 farms
Is this the best use of antimicrobials?
Is this the best way to control disease?
Antimicrobial use in animals
• Variation between countries
• Variation between species
• Variation between farms
• What drives theses differences?
• Production with low AM use is possible: How?
• Need for more data
Antimicrobial resistance: Zoonoses
0
10
20
30
40
50
60
70
80
90
100 Antimicrobial resistance in Salmonella isolates from pigs
and pigmeat 2013 , EFSA
Pigs Ireland Pigs EU 11 Pork Ireland Pork EU 7
Antimicrobial resistance: Zoonoses
2
54
3 0
Erythromycin Ciprofloxacin Gentamicin Multidrug Resistant
% R
esi
stan
t
Antimicrobial resistance in Campylobacter isolates from 20 farms
Antimicrobial resistance: commensals
88
11
55
9 6
61 64 63
% R
esi
stan
ce
Antimicrobial resistance in E. coli from broilers on 20 farms (n=787)
Antimicrobial resistance: commensals
0.3
31.2
15.6
1 3 2.4 7.1
44.1 44.8
63.8
% R
esi
stan
t
Antimicrobial resistance in commensal E. coli from pigs on 39 farms (n=802)
Antimicrobial resistance: commensals
23.6
17.2
20.7
17.5
13.8
6.7
0.5
0 1 2 3 4 5 6
% o
f Is
ola
tes
No. of Antimicrobial Classes
Resistance to number of antimicrobial classes in commensal E. coli from pigs on 39 farms (n=802)
Acknowledgements
• Department of Agriculture, Food &
Marine
• Dr Nola Leonard, UCD
• Dr Fiona Boland, UCD/RCSI
• Prof. Shea Fanning, UCD
• Dr John Egan, CVRL
• Mr. Jim Buckley MVB, Cork Co.Co.
• Prof Francis Butler, UCD
• Dr Paul Whyte, UCD
• Dr Declan Bolton, Teagasc
• Dr Shaun Smyth, UCD
• Dr Ciara Walsh, DIT
• Ms Kevina McGill, UCD
• Mr Joe Meade, UCD
• Vets & Farmers involved
ANY QUESTIONS?
Thanks for listening