Effectiveness of eprinomectin 0.5% pour-on against gastrointestinal nematodes in naturally infected cattle

Authors : Zahide BİLGİN, Kerem ÖTER, Recep TINAR, Erkut TÜZER

Pages : 541-545

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Publication Date : 0000-00-00

Article Type : Research Paper

Abstract :Effectiveness of eprinomectin, which until now has not been assessed in Turkey, was tested against gastrointestinal nematodes of naturally infected cattle under field conditions in Adapazarı, Sakarya. Out of 25 cattle used in trial, 17 were treated with eprinomectin and 8 were kept as untreated controls. To determine gastrointestinal nematode fauna, a fecal culture was prepared from the mixed fecal samples of 25 trial cattle at 26-27 °C for 3 weeks. Eprinomectin 0.5% pour-on insert ignore into journalissuearticles values(Eprinomec 0.5% Dökme Çözelti®, TOPKİM); at the recommended dose of 1 mL/10 kg bw insert ignore into journalissuearticles values(0.5 mg active ingredient/kg bw); was applied along the backline of each animal insert ignore into journalissuearticles values(day 0);. It was determined that the gastrointestinal nematode fauna of 25 trial cows comprised Nematodirus insert ignore into journalissuearticles values(17%);, Strongyloides insert ignore into journalissuearticles values(9%);, Trichostrongylus insert ignore into journalissuearticles values(24%);, Ostertagia insert ignore into journalissuearticles values(20%);, Haemonchus insert ignore into journalissuearticles values(12%);, Cooperia insert ignore into journalissuearticles values(10%);, Oesophagostomum insert ignore into journalissuearticles values(6%);, and Bunostomum insert ignore into journalissuearticles values(2%); genera. A t-test for independent samples showed no significant difference insert ignore into journalissuearticles values(P > 0.05); between the log insert ignore into journalissuearticles values(EPG + 1); values of control and treatment groups on the treatment day insert ignore into journalissuearticles values(day 0);, whereas the differences were significant insert ignore into journalissuearticles values(P < 0.001); on days 3, 10, and 17. Fecal egg count reduction percentage insert ignore into journalissuearticles values(effectiveness); was > 99.5% according to geometric means and > 97.3% according to arithmetic means. However, effectiveness against individual nematode species may differ somewhat from these percentages. No adverse reactions were observed in cattle treated with eprinomectin.
Keywords : Turk J Vet Anim Sci 2010, 34 541 545 Turk J Vet Anim Sci, vol 34, iss 6