Field trial on comparative efficacy of four fasciolicides against natural liver fluke infection in cattle

• Published in: Veterinary parasitology Vol. 135; no. 3; pp. 279 - 285
• Main Authors: Elitok, Bülent, Elitok, Özgül Mukaddes, Kabu, Mustafa
• Format: Journal Article
• Language: English
• Published: Netherlands Elsevier B.V 18.02.2006
• Subjects: albendazole; Albendazole - therapeutic use; Animals; Anthelmintic therapy; anthelmintics; Anthelmintics - therapeutic use; Benzimidazoles - therapeutic use; Bovine; Cattle; Cattle Diseases - drug therapy; clorsulon; drug evaluation; drug therapy; Fasciola hepatica; Fasciola hepatica - drug effects; fascioliasis; Fascioliasis - drug therapy; Fascioliasis - veterinary; fecal egg count; Feces - parasitology; Female; Liver fluke; liver flukes; liveweight gain; Male; Parasite Egg Count - veterinary; rafoxanide; Rafoxanide - therapeutic use; Sulfanilamides - therapeutic use; Treatment Outcome; triclabendazole; Turkey; Weight Gain; Turkey (country); Turkey; Anthelmintic therapy; Turkey; Bovine; Liver fluke
• ISSN: 0304-4017; 1873-2550
• DOI: 10.1016/j.vetpar.2005.10.008

A controlled trial was conducted to evaluate the current efficacy of albendazole (ABZ), rafoxanide (RFX), triclabendazole (TRC) or clorsulon (CLS) against Fasciola hepatica in naturally infected cattle. This trial was conducted in Turkey during the spring, the time of year when liver fluke infection is endemic. Fifty crossbred cattle were selected for inclusion in the trial based on finding eggs of F. hepatica in the feces. The cattle were weighed and randomly allotted into five groups of 10 cattle and treatments were as follows: Group 1 served as non-treated control (CONT), Group 2 was treated orally with ABZ at 12 mg/kg, Group 3 was treated orally with RFX at 10 mg/kg, Group 4 received TRC orally at 12 mg/kg and Group 5 received CLS administered subcutaneously (s.c.) at 2 mg/kg. On day 0 (inclusion day), individual fecal samples were collected on days 0 (inclusion day), 7, 14, 28 and 56, after treatment. The drug efficacy was assessed as a percentage of the egg or fluke reduction and body weight gain relative to the untreated control. The results in the study showed a mean reduction of egg counts by 66.7%, 68.2%, 78% and 84.2% in Groups 2–5, respectively. In conclusion, our results indicate that CLS is a highly effective compound for the treatment of F. hepatica in cattle under these field conditions.