Here you go @aart , this explains it all about Hygromycin B and it's effectiveness:yeah saw dawgs post...just wonder how an AB could be a wormer.....but the hencam post makes me think they call it a wormer when actually it might not be, just a sneaky way to administer AB's for other things...I dunnoI just don't give them anything. Have never seen worms when slaughtering or necropsying.
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3794024/