FECR% - What does FECR% stand for? The Free Dictionary
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The resistance of the drugs was tested according to the World Association for the Advancement of Veterinary Parasitology (WAAVP) recommendations for the detection of anthelmintic resistance in horses and ruminants  by the percentage reduction of mean egg excretion on the 14-day posttreatment; FECR%
= 100(1 - [X.sub.t]/[X.sub.c]), where [X.sub.t] and [X.sub.c] are arithmetic means of EPG in the treated (t) and control (c) groups at day 14 posttreatment.