Alternatives in the control of gastrointestinal endoparasitosis in sheep in the western amazon: literature review

Sheep farming is a business in permanent expansion in Brazil. Today, with 18 million sheep heads, the activity has grown virtually uninterrupted in the country, despite the difficulties. However, this livestock activity suffers great economic losses due to parasitism by gastrointestinal nematodes. Endoparasitosis is among the main causes of losses in sheep farming, causing a major obstacle to increasing production, leading to economic losses, including the death of animals. Thus, the proposal of this study is to review the scenario of sheep farming, as well as its difficulties, such as gastrointestinal endoparasitosis and its harmful effects on animal production. Faced with this problem, several control methods are addressed to reduce the effects caused by endoparasitosis, such as: use of anthelmintics and anthelmintic resistance, the Famacha method, integrated control and use of medicinal plants.