− | In feed treatment with piperazine salts, levamisole or a benzimidazole.(Veterinary Parasitology) | + | In feed treatment with piperazine salts, levamisole or a benzimidazole.(<ref name="Veterinary Parasitology"> Taylor, M.A., Coop, R.L., Wall, R.L., (2007)'''Parasites of poultry and gamebirds''' in: ''Veterinary Parasitology (third edition)'', 467-468.</ref> |