Treatment
Piperazine is the drug of choice. Continuous medication in feed with hygromycin B is also widely employed. Piperazine may be administered to chickens in the feed (0.2-0.4%) or water (0.1-0.2%), or as a single treatment (50–100 mg/bird). However, piperazine is quite in effective for young chickens, while tetramisole is 89-100% effective for chicken of different ages. More recent drugs such as albendazole and levamisole are also highly effective. Fenbendazole is also very effective, 99.2-100% and 69.0-89.6% effective at administration doses of 60.6 ppm and 30.3 ppm. Ivermectin was also demonstrated to be 90 and 95% effective against immature and adult worms, respectively.
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