A comprehensive ppt on anthelmintic resistance.

1. KBCMA College of Veterinary and
Animal Sciences, Narowal, Pakistan.

8. Differences in
drug metabolism
within the
parasite
Mutations at the
binding site of
the drug.

9. Frequency of de-worming. Underdosing of the anthelmintic.

10. Injecting an
anthelmintic instead
of using a drench.
Pouring an
anthelmintic on the
back instead of using
a drench.
Improper
administration of
drenches, e.g.
depositing drug in
mouth.
Use of persistent-
activity dewormers
(e.g. moxidectin).
Treating all animals
in flock/herd, leaving
no refugia.
Treating animals
when pasture
contamination is low.
Giving more than one
dewormer at a time.

11. Fecal egg count
reduction test (FECRT)
DrenchRite® larval
development assay
(LDA)

16. PASTURE AND
GRAZING
MANAGEMENT
GENERAL
MANAGEMENT
ANIMAL
MANAGEMENT
NUTRITIONAL
MANAGEMENT
GENETIC SELECTION
TARGETED
SELECTIVE
TREATMENT (TST)
“NATURAL” THINGS

17. Evasive grazing:
pasture rest and
rotation.
Maintaining
minimum grazing
heights (> 3 in.)
Browsing Mixed swards
Clean pastures Annual pastures
Tannin-rich
forages
Mowing, haying,
cropping
Rotational and
alternate grazing