title: Microbiological assay of avoparcin in animal feeds and pre-mixes--co-operative study.
abstract: A microbiological method for the determination of the antibiotic growth promoter avoparcin in animal feeds and pre-mixes was first published in 1979. The existing method has been applied to new matrices as commercial use of avoparcin has spread. Problems with the existing analytical procedure have been reported, particularly in Germany. This paper identifies the causes of the problems and includes revisions to the existing analytical procedure. The testing of these revisions in co-operative studies with up to five German official laboratories is also reported.
authors.affiliation: Product Research and Development Laboratory, Cyanamid of Great Britain Limited, Gosport, Hampshire, UK.
authors.forename: M J
authors.initials: MJ
authors.lastname: Gliddon
authors.forename: C A
authors.initials: CA
authors.lastname: Poole
authors.forename: F H
authors.initials: FH
authors.lastname: Johannsen
authors.forename: E
authors.initials: E
authors.lastname: Bucher
authors.forename: A
authors.initials: A
authors.lastname: Thalmann
authors.forename: C
authors.initials: C
authors.lastname: Dresbach
authors.forename: B
authors.initials: B
authors.lastname: Abramowski
mesh_terms: D000821:Animal Feed / Q000032:analysis* / Q000382:microbiology; D000900:Anti-Bacterial Agents / Q000032:analysis*; D006020:Glycopeptides; D008828:Microbiological Techniques
chemical_list: D000900:Anti-Bacterial Agents; D006020:Glycopeptides; C016249:avoparcin