麻保沙星在番鸭体内的药代动力学研究

将30只健康番鸭随机分为3组,静脉注射、肌肉注射及内服麻保沙星(2.5mg/kg)后,采用反相高效液相色谱法测定血浆中麻保沙星的浓度,用Kinetica4.4.1药代动力学软件处理所得到的血药浓度-时间数据。结果显示,健康番鸭静脉注射给药的药时数据适合二室开放模型,主要药代动力学参数分别为:t1/2α=(0.45±0.17)h,t1/2β=(3.28±0.33)h,Vc=(0.8±0.1)L/kg,Vd(area)=(1.39±0.28)L/kg,Vd(ss)=(1.25±0.22)L/kg,Cl=(0.23±0.05)L/(h.kg),AUC=(9.24±1.35)mg/(h.L)。健康番鸭肌肉注射给药的药时数据适合一级吸收一室开放模型,主要药代动力学参数分别为:t1/2ka=(0.16±0.06)h,t1/2kel=(2.82±0.36)h,tmax=(0.59±0.11)h,Cmax=(1.8±0.29)μg/mL,AUC=(7.92±1.09)mg/(h.L),F=(90.4±1.73)%。健康番鸭内服给药的药时数据适合一级吸收一室开放模型,主要药代动力学参数分别为:t1/2ka=(0.34±0.09)h,t1/2kel=(4.61±0.57)h,tmax=(1.41±0.3)h,Cmax=(1.13±0.21)μg/mL,AUC=(8.8±1.15)mg/(h.L),F=(96.98±5.16)%。结果表明,麻保沙星在健康番鸭体内的药代动力学特征是:吸收迅速且完全,分布广泛,消除缓慢,组织渗透力强,生物利用度高。

Pharmacokinetics of marbofloxacin in Muscovy ducks

Thirty Muscovy ducks were randomly assigned to three groups of 10 ducks each for the single intravenous(IV),intramuscular(IM) or stomach tube(ST) administrations at a dose of 2.5mg/kg marbofloxacin according to duck body weight.The marbofloxacin concentration in plasma was determined by high performance liquid chromatography with UV.The data were analyzed with the pharmacokinetics computer program Kinetica4.4.1.In results,the relationship of concentration-time was fitted to a two-compartment open model afte...