摘要：The article presents the results of experiment on testing a prolonged form of the Iverlong drug against gastrointestinal nematodes in sheep. The work was carried out on 30 lambs. The lambs of the first group were subcutaneously injected with the Iverlong preparation at a dose of 1 ml/50 kg of live weight (in 1 ml of 50 mg of Ivermectin plus PLGA prolongator), the lambs of the second group were treated with the same preparation, but at a dose of 0.5 ml/50 kg of live weight. The lambs of the third group served as a control, which were subcutaneously injected with the well-known Ivomek drug in the recommended dose (1 ml/50 kg of live weight). The effectiveness from the prolonged form of Iverlong in 2 doses against nematodes of the gastrointestinal tract was taken into account by means of coprological studies before drug administration and every 15 days for three months. According to the results of coprological studies, it was found that the Iverlong drug in a dose of 1ml/50 kg of the animal’s live weight showed a high prolonged anthelmintic effect and for 60 days protected animals from infection by nematodes of the gastrointestinal tract.
