Abstract
The gastrointestinal nematodes Haemonchus contortus and Trichostrongylus colubriformis are the most economically important helminths for Brazilian sheep farming, a highly relevant production niche in the national market. In addition, they generate symptoms in their hosts, such as severe anemia, hypoproteinemia, edema, diarrhea, poor absorption of nutrients, apathy, lethargy, but mainly, a…