A method for determination of dibutyl hydroxy toluene ( BHT), butyl hydroxy anisol ( BHA) and tetra-butylhydroquinone ( TBHQ) in forage additives by gas chromatography was established. 建立了气相色谱法同时测定饲料添加剂中2.6-二丁基羟基甲苯(BHT),丁基对羟基茴香醚(BHA),特丁基对苯二酚(TBHQ)的方法。