title: The effect of diet type on the plasma disposition of triclabendazole in goats.
abstract: The effect of two different diet types (concentrate feed+hay and grazing) on the pharmacokinetic profiles of triclabendazole following oral administration in goats was investigated. A total of 12 goats were randomly allocated into two groups which were either indoor and fed concentrate + hay ration (housed group) or were grazing on pasture (grazing group). Triclabendazole was administered orally to animals in two groups at 10 mg/kg bodyweight. Blood samples were collected from 1 h to 192 h post-treatment and analyzed by high performance liquid chromatography (HPLC). Feeding with different diets significantly effected the plasma disposition of triclabendazole sulphoxide. Maximum plasma concentration (C(max): 13.22+/-2.81 microg/ml), time to reach maximum plasma concentration (t(max): 18.4+/-2.19 h), area under the curve (AUC: 613+/-137 microg h/ml), half-life (t(1/2): 24.77+/-1.94 h) and mean resident time (MRT: 40.22+/-4.36 h) of triclabendazole sulphoxide in housed group were significantly different from those of grazing group (C(max): 10.17+/-1.51 microg/ml, t(max): 14.0+/-2.19 h, AUC: 406+/-98 microg h/ml), t(1/2): 16.16+/-1.17 h and MRT: 34.48+/-4.40 h). It is concluded that anthelmintically more active sulphoxide metabolite has higher plasma concentration when triclabendazole is administered to goats fed with concentrate feed + hay compared to grazing goats.
authors.affiliation: Department of Pharmacology and Toxicology, University of Adnan Menderes, Isikli Koyu, Aydin, Turkey. cengizgokbulut@yahoo.com
authors.forename: Cengiz
authors.initials: C
authors.lastname: Gokbulut
authors.forename: Umit
authors.initials: U
authors.lastname: Karademir
authors.forename: Murat
authors.initials: M
authors.lastname: Boyacioglu
authors.forename: Ferda
authors.initials: F
authors.lastname: Akar
mesh_terms: D000821:Animal Feed / Q000032:analysis; D000824:Animal Nutritional Physiological Phenomena; D000818:Animals; D000871:Anthelmintics / Q000097:blood* / Q000493:pharmacokinetics*; D019540:Area Under Curve; D001562:Benzimidazoles / Q000097:blood* / Q000493:pharmacokinetics*; D004032:Diet / Q000662:veterinary*; D006041:Goats / Q000097:blood*; D006207:Half-Life; D000077682:Triclabendazole
chemical_list: D000871:Anthelmintics; D001562:Benzimidazoles; D000077682:Triclabendazole