Ivermectin resistance in intestinal parasites of camels in a private farm at Assiut, Egypt

AbstractRecently, anthelmintic resistance becomes a growing problem in veterinary medicine in all domestic animals including camels. There was a little documented research on parasitic resistance especially in camels in Egypt. Therefore, this study was designed to investigate resistance to ivermectin in one-humped camels (Camelus dromedarius) in a private farm at Assiut Governorate, Egypt. These camels were regularly receiving injectable ivermectin at 0.2  mg/kg bodyweight once every month and suffered from emaciation and loss of condition. Fecal samples were collected from all camels in the farm (number = 40) and examined directly by sedimentation and flotation techniques. Fecal egg counts were also determined by using McMaster slide. Thirty-on e out of 40 (77.5%) examined camels were infected with eggs of different helminth genera and coccidian oocysts.Eimeria spp. were the most prevalent (55%) either in single or mixed infested cases, followed byTrichostrongylus spp. (45%),Trichuris spp. (35%),Ascaris spp. (5%), andMoniezia spp. (5%). According to the infestation type, the infested cases divided into single and mixed cases. Single infested cases (n = 13; 32.5%) was lower than the mixed (two (9; 22.5%) or three (9; 22.5%)) ones. Severity of infestation was estimated by fecal egg count and most of cases showed mild infestation except forEimeria spp.-infested cases, which showed severe infestation. The present study concluded that misuse of ivermectin as anthelmintic...
Source: Comparative Clinical Pathology - Category: Pathology Source Type: research