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Flashcards in Ectoparasite Control in LA Deck (17)
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1
Q

What is this skin disease?

A

Orf - virus and potential of 2° Bac infection

2
Q

What would you use to treat Orf?

A

Antibiotics/Antibacterials

-Based on C+S and NSAIDS commonly used

3
Q

What is this skin diease?

A

Flystrike - issue with soiled fleece + infected with maggots

4
Q

What would you use to treat Flystrike?

A
  1. Shear as tx cannot penetrate the wool
  2. Can see affected area and can wash
  3. Pyrethroids - pour on (only one licensed)
5
Q

What is the action of Pyrethroids?

A
  1. Ectoparaciticides
  2. Block sodium channels in nerve cells and
    induce paralysis
6
Q

What is used to prevent Flystrike?

A

Insect growth regulators
• Cyromazine - Chitin synthesis interference
• Dicyclanil - Molting interference

7
Q

What is this skin disease?

A

This is Lice (Hair loss, pruritic)

8
Q

What is the treatment for Lice?

A

Pyrethroids

(Organophosphates dips- AChE receptor blocking)

9
Q

Why are Organophospates not used as frequently anymore?

A
  • Highly toxic to all species
  • Diazinon only UK approved active ingredient

• Requires external company to come in with dips + dispose of

+ High quality PPE

• Post dip lameness - older lambs affected by E.rhusopathiae - infection through small abrasions - CS: Stiff

10
Q

What is the skin disease?

A

Scab

11
Q

What is the treatment for Scab?

A
  1. Macrocylic lactones (Clear drench) - dual action - wormer too
  2. Organophosphates
12
Q

What is the action of Avermectins/Macrocyclic Latones?

A
  1. Bind to glutamate-gated chloride channel receptors
  2. Flaccid paralysis of pharynx
  3. Internal/External parasites affected

AD: Easy to administer than op dips
DISAD: affects worming regimes

13
Q

What is this skin disease?

A

Ringworm

14
Q

What is the treatment for Ringworm?

A

Antifungals - only one licensed: Enilconazole - block synthesis of ergosterol
Need to wash animal every other day - unlikely to happen

Other TX: vaccines or turn out and cures spontaneously

15
Q

What is this skin disease?

A

Mange
Affecting the Rump, red, sore

16
Q

What is the treatment for Mange?

A

Macrocyclic Latones

17
Q

What are the withdrawal times for meat and milk under licensing?

A

Milk W: 7d

Meat W: 28d