Fractionation and Qualitative Microbioassay of Antibiotic Feed Additive Residues in Animal Tissues

Drug residues in animal tissues.

Thiopeptin, a new feed additive antibiotic: microbiological and chemical studies.

The thiopeptins are a new group of sulfur-containing peptide antibiotics produced by Streptomyces tateyamensis. The antibiotic consists of a major component (designated as thiopeptin B) and four minor ones (thiopeptins A(1) to A(4)). These components were isolated by solvent extraction from mycelium followed by chromatography on silica gel with various ratios of chloroform and methanol as eluti...

Antibiotic residues in poultry tissues and eggs: human health concerns?

Antibiotics are used by the poultry industry to enhance the health and productivity of flocks. The use of antimicrobials is strictly regulated by the Food and Drug Administration (FDA) and the USDA to warrant their safety and efficacy. Prior to regulatory approval, the pharmacokinetics and tissue tolerances of an antimicrobial are determined to set the proper dosage. To ensure proper use, both ...

IgE-mediated allergy to phytase -- a new animal feed additive.

BACKGROUND Although fungal phytase is frequently used as an additive to animal feed few investigations of its allergenic property have been conducted. METHODS Fifty-three subjects occupationally exposed to powdered phytase from Aspergillus niger were studied. Exposure data and symptoms were registered by the company physician. RESULTS Thirty-eight subjects complained of work-related respira...

Antibiotic residues in raw and pasteurized milk, Iran

Introduction: The presence of antibiotic residues in food products of animal origin, especially milk and meat, and their consumption can cause serious side effects for human health. The purpose of this study was to monitor antibiotics residues in raw and pasteurized milk produced in Elam province of Iran during the spring and summer of 2012. Material and Methods: For this purpose, 9 industrial ...