ANTIMICROBIAL USE WHILST ADOPTING IMPROVED MANAGEMENT STRATEGIES ON FARROW-TO-FINISH

Transcription

1 VETERINARY EPIDEMIOLOGY UNIT FARM-ECONOMIC ANALYSIS OF REDUCING ANTIMICROBIAL USE WHILST ADOPTING IMPROVED MANAGEMENT STRATEGIES ON FARROW-TO-FINISH PIG FARMS Prof. Jeroen Dewulf

2 Of the 120 experts that responded, 111 rankings were used for further analysis (Belgium n = 24, Denmark n = 30, France n = 8, Germany n = 17, Sweden n = 23, Switzerland n = 9)

3 Perceived alternatives (Vets) Average of effectiveness, feasibility, ROI Mean Ranking Internal biosecurity Increased vaccination Zinc/metals Feed quality/optimisation Diagnostics/action plan External biosecurity Climate/environmental Communication/unified advice Water quality Age and transfer management Postma et al., 2015

4 AIM Study the relationship between Biosecurity Management / production Antimicrobial use Country Herd Charactheristics 4

5 STUDY DESIGN Multi country: Belgium = 47 France = 60 Germany = 60 Sweden = 60 All herds 100 sows, 500 finishers Intention for representativeness / depending on willingness to cooperate Study performed between Dec Dec

6 STUDY DESIGN All herds visited by researcher or trained veterinarian Dedicated herd visit with datacollection on General health and production characteristics (preceding year) Herd characteristics Biosecurity Antimicrobial usage (preceding year) 6

7 STUDY DESIGN General health and production characteristics Weaned piglets per sow per year (WSY) Mortalities ADG Feed conversion rate (FCR) Herd characteristics Age / experience farmer Gender Farrowing rhythm Weaning age. 7

8 STUDY DESIGN Biosecurity Assessed by means of validated risk-based biosecurity scoring system: Biocheck.ugent 109 questions Provides a score for internal and external biosecurity 8

9 RESULTS: BIOSECURITY STATUS Green = Internal biosecurity Blue = External biosecurity 23/11/2016 Postma et al., 2016

10 STUDY DESIGN Antimicrobial use TI = Total amount of antimicrobials administered (mg) DDDA (mg/kg) x number of days at risk x kg animal at risk x 1000 pigs at risk TI calculated per age category and for entire production period (200 days) TI 200 = 150: meaning that over the full production length a pig is treated for 15 % (=150/1000) of its lifetime 23/11/

11 RESULTS: AMU a a b c 23/11/

12 RESULTS: BIOSECURITY STATUS Postma et al., 2016

13 RESULTS: ASSOCIATIONS 23/11/

14 Substantial reduction antimicrobial usage without jeopardizing production by coaching? 14

15 61 Flemish herds 3 Herd visits Intervention & follow up 15

16 Coaching 16

17 Biosecurity & Management % ADVISED % FEASIBLE % IMPLEMENTED Registration symptoms & moment mortality for analysis Hand hygiene, change coverall and clean boots Change needles often Hygiene lock per animal/age category Use strict euthanasia policy Wash sow before farrowing crate Analysis drink water 1x/year well/pipes Keep dog/cat out of the stable AI / AO, do not return to younger age group Use dirty road for transport of manure Change wooden boards for plastic boards

18 Diagnostics & vaccination % ADVISED % FEASIBLE % IMPLEMENTED Request slaughter findings for analysis Additional vaccinations in general Additional specific vaccinations: PCV Check serology titres in general Adjustment of vaccination scheme: Atrofic rhinitis

19 Prudent antimicrobial usage % ADVISED % FEASIBLE % IMPLEMENTED Restrictive use of potent AM Stop (routine) prophylactic treatment birth until slaughter Stop prophylactic treatment in sows Ask for resistance profile/sensitivity testing

20 Herd specific advice 20

21 External biosecurity Parameter % difference Biosecurity external +3.7% Purchasing policy +3.6% Removing animals, manure and carcasses +6.2% Supply of fodder, water and equipment +3.9% Access check +2.8% Vermin and bird control +6.4% Location and environment -4.8% 21

22 Internal biosecurity Parameter % difference Biosecurity internal +14.2% Disease management +21.1% Farrowing and suckling period +18.8% Nursery period +6.1% Fattening period +8.3% Compartimentalizing, working lines and equipement +17.5% Cleaning and disinfection +18.0% 22

23 Treatment incidence 600 Average TI DDDA routine visit 1 Average TI DDDA curative visit % Average TI DDDA routine visit 3 Average TI DDDA curative visit % ,6% % Piglets Finishers Birth-slaughter 205 days Sows

24 Production parameters VISIT MEAN DIFFERENCE P-VALUE Initial 26.4 Number of weaned piglets per sow per year Daily weight gain (g/day) finishers Mortality in finisher period (%) Follow up 27.5 Initial Follow up Initial 3.2 Follow up ,1 < , ,

25 Net benefit 42,99 per sow/year 2,67 per finisher/year Rojo-Gimeno C. and Postma M. et al., 2016)

26 PROSPECTIVE INTERVENTION STUDY TO EXPLORE MEASURES TO REDUCE ANTIMICROBIAL USAGE IN PIG PRODUCTION

27 INTERVENTION STUDY Across the 4 countries Median TI 200d before: Median TI 200d after: P < *** -35.2%

28 28

29 The MINAPIG consortium Supervising: Prof. Dr. Katharina Stärk Prof. Dr. Elisabeth grosse Beilage Dr. Catherine Belloc Prof. Dr. Jeroen Dewulf Prof. Dr. Ulf Emanuelson Prof. Dr. Christian A. Körk Executing: Annette Backhans, DVM, PhD Lucie Collineau, DVM, MSc Svenja Lösken, DVM Elisabeth O. Nielsen, DVM, PhD Merel Postma, DVM Marie Sjölund, DVM, PhD Vivianne Visschers, MSc, PhD Supporting: Prof. Dr. Ann Lindberg Hugo Seemer, DVM, PhD Petra Maas, DVM, PhD MINAPIG consortium 29

30 Jeroen Dewulf VETERINARY EPIDEMIOLOGY E Jeroen.dewulf@ugent.be T M Ghent jkdewulf