Influence of High Level Antibiotic Rations with Terephthalic Acid on the Antibiotic Content and Keeping Quality of Poultry Meat

Abstract

THE broad spectrum antibiotics, chlortetracycline (CTC) and oxytetracycline (OTC) are sometimes fed or injected at high levels to control poultry diseases (Adler et al., 1956; Shelton and Olson, 1958; and Peterson and Hendrix, 1959). Chlortetracycline has also been reported to be effective, when fed at high levels for a few days before slaughter for extending the keeping time of poultry meat (Anderson et al., 1958; and Silverstini et al., 1958, 1959).Absorption of CTC and OTC into the blood may be doubled by feeding terephthalic acid (TPA) (Peterson, 1958; Peterson et al., 1959; Peterson and Hendrix, 1959; Price et al., 1959a, b; and Yates and Stephenson, 1959). Or, the same effect may be produced by lowering the calcium in the ration for a few days during use of the antibiotic (Price et al. 1959a, b; Pensack et al., 1959; and Stokstad et al., 1959).OBJECTIVESThe objectives of this study …