Detection of multiple anthelmintic resistance of Haemonchus contortus and Teladorsagia circumcincta in sheep and goats of northern Punjab, Pakistan (original) (raw)

The present study was conducted to investigate the efficacy of albendazole, levamisole and ivermectin against gastrointestinal nematodes of sheep and goats. One hundred and sixty small ruminants comprised four breeds, sheep (Salt range and Pak Karakul) and goats (Jattal and Beetal) were selected for this experiment. These animals were artificially infected with nematodes (Haemonchus contortus and Teladorsagia circumcincta). FECs were done to confirm the presence of adult stages of H. contortus and T. circumcincta. The selected sheep and goat were divided into four groups. First group was treated with albendazole, second with levamisole, third with ivermectin and fourth kept as untreated to serve as control. Faecal samples were collected on day first prior to administration of treatment followed by day 14 post treatment. The efficacy of each anthelmintic was measured using the faecal egg count reduction test and egg hatch test. The percentage reduction in FECs (95% CI) for albendazol...