Resposnible Use 0f Antibiotics

Question 1

What are the three types of parasite

Answer 1

Helminths
Protozoa
Arthropods

Question 2

What a re the classes of antiparasitic drugs

Answer 2

Ectoparaisitides
Endoparactocides

Question 3

What are the characteristics of anti parasitic drugs?

Answer 3

Spectrum of activity - e.g. narrow spectrum - ticks only, broad spectrum - ticks, lice bow fly
Curative efficacy - effect on established infestation
More of action - all stages or adulticie
Preventative against e-infestation

Question 4

What is a unavoidable consequence of using anthelmintics

Answer 4

To control worm populations as there is awlways a selection that are resistant to the chemical use -
If left unchecked anthelmintics resistance could prove to be one of the biggest challenges to sheep and cattle production

Question 5

What is natural selection when it comes to anthelmintics

Answer 5

A direct unavoidable consequence of using anthelmintics to control worm populations is selection for individuals that are resistant to the chemicals used.
Worms that are resistant to the anthelmintics will reproduce and create resistant worms

Question 6

When to treat parasites

Answer 6

Nee to look at numbers to determine if treatment is needed. There are high an low values to determine infestation

Question 7

What is a low infestation for haemonchus contour

Answer 7

Less than 500 eggs

Question 8

High infestation of haemonchus contort

Answer 8

Over 5000 eggs

Question 9

When should antiparasitic drugs be considered?

Answer 9

Parasite numbers are high enough to cause disease/death
Parasites with potential to transmit issue - tick
Welfare performance - flea, tick, mite
Zoonotic potential

Question 10

What are the 5 r/s in the cows high

Answer 10

Right product
Treat right animal
At the right time
At the right dose rate
And its administered in the right way

Question 11

If there is a ppopulation of less than 5% of worms is it detectable

Answer 11

No

Question 12

If there is a population of 5-50% of worms is it detectable

Answer 12

Not detected but reduction in animals is noticeable

Question 13

If there is a resistance of 50-+% in worms is it detectable

Answer 13

Yes and there is poor performance in animals - shows that treatment is not effective

Question 14

When do you know if a treatment doesnt work against parasites

Answer 14

Population of worms is above 50%

Question 15

What are scoops principles

Answer 15

The frequency of anthelmintics used on a farm
The efficacy of each treatment - accuracy of the dose and application to the level of resistance
The proportion of the total worm population in the animal at the time of treatment and how quickly urviving parasites are diluted with selected parasites

Question 16

What a tzelos and mathews objectives

Answer 16

Ensure anthelmintics selected are effective for the purpose they are intended for
Ensure correct dose of anthelmintics is used
Only treated with 20% of animals shed 80% of the eggs
High shedders are treated with appropriate anthelmintics while low shedders are left in treating

Question 17

What are th alternatives to anthelmintics

Answer 17

Pasture management
Rotational grazing
Alternate or cograzing
Cropping Fermat has
Nutrition
Vaccination
Fungi and boactive plants
Enticing selection