SCOPS Sustainable Control of Parasites in S heep heep CURRENT - - PowerPoint PPT Presentation

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Nov 03, 2022 215 likes •357 views

SCOPS Sustainable Control of Parasites in S heep heep CURRENT KNOWLEDGE OF BEST PRACTICE FOR PROMOTING PRUDENT USE FOCUS GROUP MEETING Revision of the reflection paper on anthelmintic resistance 13 th June 2016 Lesley Stubbings OBE; BSc Hons;

SLIDE 1

SCOPS

Sustainable Control of Parasites in Sheep heep

CURRENT KNOWLEDGE OF BEST PRACTICE FOR PROMOTING PRUDENT USE

FOCUS GROUP MEETING Revision of the reflection paper on anthelmintic resistance 13th June 2016

Lesley Stubbings OBE; BSc Hons; FRAgs

SLIDE 2

Who/what are SCOPS?

SLIDE 3

The Rate AR (anthelmintic resistance) Appears in a Flock 0.0 0.2 0.4 0.6 0.8 1.0

Frequency

Time

Alleles Homozygous resistant worms

A B C

Early Intervention is Key to Success

SLIDE 4

SCOPS are committed to reducing reliance on anthelmintics:

Grazing strategies - reduced challenge, avoidance

tactics and bioactive forages.

Nutrition and acquired immunity
Quarantine protocols to avoid importation of AR and

parasites.

Monitoring and contamination mapping.
Breeding for ‘resistance’

(strong acquired immunity) and/or resilience

SLIDE 5

Three Main Selection Pressures:

1. Under dosing – ineffective treatments caused by

incorrect dose rate and/or technique. Oral, injectable preparations and particular concern regarding topical (pour-ons) in cattle.

2. Over-use – unnecessary or inadvertent treatments (e.g.

endectocides and combination products, treatment of adult animals). Use of ineffective treatments.

3. Low refugia – failure to mitigate the effects of

treatment through dilution of survivors. E.g. ‘Dose and move’ /‘poo picking’ in horse paddocks.

SLIDE 6

Sheep Scab is a Major Threat in the UK

SLIDE 7

Benzimidaz azol

es (1BZ) Lev Levam amisol

(2LV 2LV) Iverme rmect ctin Moxidec dectin (3M 3ML) L) Farm Count 20 20 20 20 No of farms with detected resistance 20 15 16 8 Farms with resistance (FECRT<95%) 100% 75% 80% 40%

WAARD* Results (2015)

* Wales Against Anthelmintic Resistance Development

SLIDE 8

Group 2 (LV)

Levimasoles Yellow Drenches

Group 3 (ML)

Macrocyclic- lactones Clear Drenches

Group 4 (AD)

Monepantel Orange Drench

Group 5 (SI)

Derquantel + abamectin Purple Drench

Group 1 (BZ)

Benzimidazole s White Drenches

Broad Spectrum Anthelmintics

SLIDE 9

Use of the 4-AD and 5-SI groups of anthelmintics

Quarantine Mid / late season ‘reset’

SLIDE 10

Motivation?

SLIDE 11

If we can measure it, we can manage it. Waiting for clinical signs…. Measuring performance Indicators – early intervention.

SLIDE 12

Market research – vet responses

SLIDE 13

SCOPS Sustainable Control of Parasites in S heep heep CURRENT - - PowerPoint PPT Presentation

SCOPS

Sustainable Control of Parasites in Sheep heep

CURRENT KNOWLEDGE OF BEST PRACTICE FOR PROMOTING PRUDENT USE

FOCUS GROUP MEETING Revision of the reflection paper on anthelmintic resistance 13th June 2016

Who/what are SCOPS?

Early Intervention is Key to Success

SCOPS are committed to reducing reliance on anthelmintics:

tactics and bioactive forages.

parasites.

(strong acquired immunity) and/or resilience

Three Main Selection Pressures:

incorrect dose rate and/or technique. Oral, injectable preparations and particular concern regarding topical (pour-ons) in cattle.

endectocides and combination products, treatment of adult animals). Use of ineffective treatments.

treatment through dilution of survivors. E.g. ‘Dose and move’ /‘poo picking’ in horse paddocks.

Sheep Scab is a Major Threat in the UK

WAARD* Results (2015)

Broad Spectrum Anthelmintics

Use of the 4-AD and 5-SI groups of anthelmintics

Quarantine Mid / late season ‘reset’

Motivation?

Market research – vet responses

SCOPS in Practice – does it work? (VMD funded project)

More information on SCOPS at: www.scops.org.uk