General Bovine Flashcards
bovines defecate ____ on pasture
eggs
more time on pasture means more _____
exposure
conservative parasite load
2epg
daily egg production via host
40,000 eggs
average fecal production of one cow per day
20kg/ day
what is economic threshold?
the density of the pest at which control treatment will provide and economic return, the point where loss > the cost of treatment
When there is a greater frequency of individuals within a population able to tolerate doses of compound than in a normal population of the same species and is heritable
resistance
Normal population _% tolerate ivermectin
1
Resistance exists if >___% tolerate ivermectin
1
___% of parasites found in host and ____% are found in pasture
10%, 95%
____ determines when parasites are an issue on pasture
climate