喹噁啉类饲料添加剂对肉鸡促生长机理研究

Mechanism of Quinoxaline-type Food Additive on Promoting-growth in Broiler

利用不同喹噁啉,对肉鸡的生产性能、蛋白代谢进行了研究。将320只肉鸡随机分为4组,Ⅰ组未添加任何抗生素,Ⅱ、Ⅲ、Ⅳ组分别添加50 mg/kg喹乙醇、喹胺醇和喹烯酮。结果表明:喹胺醇和喹烯酮组的日增重、采食量和饲料转化率都显著高于对照组和喹乙醇组,而喹乙醇组显著低于对照组;喹胺醇和喹烯酮组血浆总蛋白和白蛋白与空白组差异不显著,喹乙醇组总蛋白和白蛋白显著低于空白组。喹胺醇和喹烯酮组肌肉中RNA、RNA/DNA与对照组差异显著,DNA差异不显著。

This article were used to study affection of several quinoxaline- 1,4 - dioxide-type growth-promoting agents on performance of broiler and its mode of action . A feeding experiment was carried out over 42d with four groups of broiler chickens fed experimental diets formulated to provide no agent, 50 mg olaquindox ,50mg kui＇ anchun and 50mg Kuixitong.After 21d of the experiment, eight chickens from each pen were killed and the plasma total protein , albumen ,RNA,RNA/DNA in muscle were measured . The conclusion suggested ： （1）Average day gain , average day food intake and food conversion in kui＇ anchun - fed were significantly higher than in olaquindox - fed and control （P 〈 0.05） ; （2）No increase in plasma total protein and albumen were observe in control, Kui＇ anchun- fed and Kui xi tong- fed（ P 〉 0.05） ;however , olaquindox -fed was significantly decrease （P〈 0.05）; （3） significantly greater of RNA, RNA/DNA in muscle was demonstrated fed kui＇ anchun, kui xi tong, olaquindox than control（P〈 0.05）.