Journals / Ankara Üniversitesi Veteriner Fakültesi Dergisi / 2005 / Cilt: 52 - Sayı: 2

The pharmacokinetics of approved medicines including enrofloxacin in broiler

Etlik piliçlerde enrofloksasin içeren müztahzarların farmakokinetiği*

Pages
99–103
Publication Date
2022-10-12
DOI
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AI Summary & Key Takeaways

AI Insight
⚡ TL;DR(Too Long; Didn't Read)

The best absorbtion and high level drug concentration in plasma were obtained via in drinking water administration by Enrolen.

📌 3 Key Takeaways

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Objective & Hypothesis:The aim of this study is to determine the pharmacokinetic properties of approved medicines including enrofloxacin in broiler after single intravenous (IV) and orally administered at the dose level of 10 mg/kg body weight (bw) and to find out if there are differences in their pharmacokinetic profiles.
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Key Findings & Data:In this study, 24 broiler chickens, 40 days-old, were used.
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Conclusion & Impact:The best absorbtion and high level drug concentration in plasma were obtained via in drinking water administration by Enrolen.
🔬Design:Modeling & Simulation
📍Scope:Comprehensive Sample
⚙️Variables:Domain Parameters

Abstract

The aim of this study is to determine the pharmacokinetic properties of approved medicines including enrofloxacin in broiler after single intravenous (IV) and orally administered at the dose level of 10 mg/kg body weight (bw) and to find out if there are differences in their pharmacokinetic profiles. In this study, 24 broiler chickens, 40 days-old, were used. Broiler chicks were obtained one-day-old and fed by fodder without any drug supplementation for 40 days. When they were 25 days-old, divided into 4 groups (as groups 1, 2A, 2B and 2C). Enrofloxacin was given IV to the animals in Group 1; Baytril, Enrolen and Hipralona Enro-S were administered Groups 2A, 2B and 2C via drinking water, respectively. Following the drug administration, blood samples were obtained from left v. cutenea ulnaris of chicken at 0.08 to 24 hours and collected with citrated syringes though a canula. The plasma was separated by centrifugition (3000 rpm, 10 minutes) and analyzed by agar-jel disc-diffussion method. Curve of plasma enrofloxacin concentration-time profile was characteristics of a two-compartmental-open model. There were significient differences between IV and orally administration in same pharmacokinetic parameters. Following the IV administration of enrofloxacin, some pharmacokinetic variables were as follows: k)2=4.35±0.47 hours"1; k21=0.50±0.19 hours"1; k,0=4.46±0.47 hours"1; AUC=41.8±3.1 ug.hours/ml; t,/2a=0.08±0.00 hours: t1/2p=9.62±0.36 hours; V,=0.66±0.39 L/kg; MRT=12.64±0.43 hours; Cl=8.13±4.44 ml/hour.kg. Following the administration of Baytril, Enrolen and Hipralona Enro-S via in drinking water, some pharmacokinetic variables were as follows, respectively: t!/2a=0.14±0.07 hours; 0.09±0.01 hours and 0.14±0.06 hours; t1/2p=17.32±1.69 hours, 5.33±0.21 hours and 34.65±2.72 hours; V,=0.20±0.09 L/kg, 0.50±0.27 L/kg, and 1.68±0.08 L/kg; A-UC=30.7±4.8 ug.hours/ml, 41.3±3.4 ug.hours/ml and 31.2±3.5 ug.hours/ml; F=%73.44, %98.8 and %74.64; MRT=18.02±2.48 hours, 17.00±2.32 hours and 15.06±6.98 hours; Cl=4.31±1.87 ml/hours.kg, 6.15±3.14 ml/hours.kg and 0.33±0.03 ml/hours.kg. The results of this study pointed out that all these approved medicines were absorbed highly from the gastro-intestinal tract in boiler and therefore their bioavailability was high. The best absorbtion and high level drug concentration in plasma were obtained via in drinking water administration by Enrolen.

Özet

Bu çalışmanın amacı etlik piliçlere Dİ ve içme suyu içinde 10 mg/kg dozda verilen enrofloksasin içeren müstahzarların farmakokinetiğini belirlemek ve farmakokinetik değişkenlerden yararlanarak klinik farmakoloji yönünden bu müstahzarlar arasında farklılık olup olmadığını ortaya koymaktır. Çalışmada 40 günlük 24 etlik piliç kullanılmıştır. Hayvanlar civciv olarak alınmış ve 40 gün süreyle herhengi bir ilaç içermeyen yemle beslenmiştir. Piliçler 25 günlükken her birinde 6 hayvan bulunan 4 gruba (Grup l, 2A, 2B ve 2C) ayrılmıştır. İlaç Grup l'deki hayvanlara kanat altından Dİ yolla; Grup 2'deki hayvanlara da içme suyu ile verilmiştir. İlacın uygulanmasını takiben, her hayvandan 0.08-24 saatleri arasında sitratlı tüplere 0.5 mi kan alınmıştır. Kanın plazması ayrıldık-tan sonra, plazmadaki ilaç yoğunluğu ağar jel disk diffüzyon metodu ile belirlenmiştir. Plazma ilaç yoğunluğu-zaman eğrisinin 2-bölmeli dışarıya açık modele uyduğu anlaşılmış ve hesaplamalar buna göre yapılmıştır. Enrofloksasinin Dİ, Baytril, Enrolen ve Hipralona Enro-S'in içme suyu ile verilmesini takiben hesaplanan farmakokinetik değişkenlerin incelenmesi sonucunda, özellikle dağılma ve atılma dönemi yarı-ömrü olmak üzere, bazı farmakokinetik değişkenler arasındaki farkın istatistiki yönden önemli olduğu ortaya konulmuştur. Çalışmada elde edilen sonuçlar, aralarında fark olmakla beraber, ilaç müstahzarlarının içme suyu ile verilmesi sonucu sindirim kanalından iyi emildiklerini; Enrolen'in biyoyararlanımının hemen hemen tama yakın ve diğerlerinin yeterli olduğunu, günde tek sefer verilmelerinin de yeterli olduğunu ortaya koymuştur.

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Cite This Article

PARLAR, A., KAYA, S. (2022). The pharmacokinetics of approved medicines including enrofloxacin in broiler. Ankara Üniversitesi Veteriner Fakültesi Dergisi, Cilt: 52 - Sayı: 2, 99–103. https://ajindex.com/articles/445219

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References (1)

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